HULL GROUP INC
S-1, 1999-05-13
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<PAGE>   1
 
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 13, 1999
                                                 REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ---------------------
                                    FORM S-1
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             ---------------------
 
                              THE HULL GROUP INC.
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                            <C>                             <C>
          DELAWARE                         6211                         36-4292284
  (State of incorporation)     (Primary Standard Industrial          (I.R.S. Employer
                                Classification Code Number)         Identification No.)
</TABLE>
 
                             311 SOUTH WACKER DRIVE
                               CHICAGO, IL 60606
                                 (312) 697-2700
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
 
              M. BLAIR HULL, CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                              THE HULL GROUP INC.
                             311 SOUTH WACKER DRIVE
                               CHICAGO, IL 60606
                                 (312) 697-2700
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service):
 
                                   Copies to:
 
<TABLE>
<S>                                             <C>
            EDWARD S. BEST, ESQ.                           WILLIAM R. KUNKEL, ESQ.
            MAYER, BROWN & PLATT                    SKADDEN, ARPS, SLATE, MEAGHER & FLOM
          190 SOUTH LASALLE STREET                               (ILLINOIS)
              CHICAGO, IL 60603                             333 WEST WACKER DRIVE
               (312) 782-0600                                 CHICAGO, IL 60606
                                                               (312) 407-0700
</TABLE>
 
      APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As soon
as practicable after this Registration Statement becomes effective.
 
      If any of the securities being registered on this Form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, check the following box.  [ ]
 
      If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering.  [ ]
 
      If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
      If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
      If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, check the following box.  [ ]
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------
               TITLE OF EACH CLASS OF                     PROPOSED MAXIMUM            AMOUNT OF
             SECURITIES TO BE REGISTERED              AGGREGATE OFFERING PRICE   REGISTRATION FEE(1)
- -------------------------------------------------------------------------------------------------------
<S>                                                   <C>                      <C>
Common Stock, par value $.01 per share...............       $115,000,000               $31,970
- -------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------
</TABLE>
 
(1) Calculated pursuant to Rule 457(o) under the Securities Act of 1933.
 
      THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE
ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(a), MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
                     SUBJECT TO COMPLETION -- MAY 13, 1999
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
PROSPECTUS
 
              , 1999
 
                                  [HULL LOGO]
 
                              THE HULL GROUP INC.
 
                                    SHARES OF COMMON STOCK
- --------------------------------------------------------------------------------
 
THE HULL GROUP INC.:
 
- - We are a global market maker in equity derivatives and equity securities.
 
- - The Hull Group Inc.
  311 South Wacker Drive
  Chicago, Illinois 60606
  (312) 697-2700
 
PROPOSED SYMBOL & MARKET:
 
- - HULL/Nasdaq National Market
THE OFFERING:
 
- - We are offering            shares of our common stock.
 
- - The underwriters have an option to purchase an additional            shares of
  our common stock from us to cover over-allotments.
 
- - This is our initial public offering, and no public market currently exists for
  our common stock.
 
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------
                                                PER SHARE        TOTAL
- -------------------------------------------------------------------------
<S>                                            <C>             <C>
Public offering price, estimated:              $               $
Underwriting fees:
Proceeds to The Hull Group Inc.:
</TABLE>
 
- --------------------------------------------------------------------------------
 
     THIS INVESTMENT INVOLVES RISK. SEE "RISK FACTORS" BEGINNING ON PAGE 6.
- --------------------------------------------------------------------------------
Neither the SEC nor any state securities commission has determined whether this
prospectus is truthful or complete, nor have they made, nor will they make, any
determination as to whether anyone should buy these securities. Any
representation to the contrary is a criminal offense.
- --------------------------------------------------------------------------------
 
DONALDSON, LUFKIN & JENRETTE
 
                              ABN AMRO ROTHSCHILD
                      A DIVISION OF ABN AMRO INCORPORATED
 
                                         PUTNAM, LOVELL,
                                         DE GUARDIOLA & THORNTON, INC.
 
WE WILL AMEND AND COMPLETE THE INFORMATION IN THIS PROSPECTUS. ALTHOUGH WE ARE
PERMITTED BY U.S. FEDERAL SECURITIES LAW TO OFFER THESE SECURITIES USING THIS
PROSPECTUS,
WE MAY NOT SELL THEM OR ACCEPT YOUR OFFER TO BUY THEM UNTIL THE DOCUMENTATION
FILED WITH THE SEC RELATING TO THESE SECURITIES HAS BEEN DECLARED EFFECTIVE BY
THE SEC. THIS
PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES OR OUR SOLICITATION OF YOUR
OFFER TO BUY THESE SECURITIES IN ANY JURISDICTION WHERE THAT WOULD NOT BE
PERMITTED OR LEGAL.
<PAGE>   3
 
                                   [GRAPHICS]
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                       PAGE
<S>                                    <C>
Prospectus Summary...................     1
Risk Factors.........................     6
Forward-looking Statements...........    17
Our Company..........................    17
Use of Proceeds......................    17
Dividend Policy......................    18
Dilution.............................    19
Capitalization.......................    20
Selected Consolidated Financial
  Information........................    21
Management's Discussion and Analysis
  of Financial Condition and Results
  of Operations......................    23
Our Industry.........................    35
</TABLE>
 
<TABLE>
<CAPTION>
                                       PAGE
<S>                                    <C>
Our Business.........................    39
Our Management.......................    53
Certain Relationships and Related
  Transactions.......................    60
Principal Stockholders...............    61
Description of Capital Stock.........    62
Shares Eligible for Future Sale......    65
Underwriting.........................    67
Legal Matters........................    69
Experts..............................    69
Additional Information...............    69
Index to Consolidated Financial
  Statements.........................   F-1
</TABLE>
<PAGE>   4
 
                               PROSPECTUS SUMMARY
 
       This summary is not complete and does not contain all the information you
should consider before investing in our common stock. You should read this
entire prospectus carefully, including the risks of investing in our common
stock discussed under "Risk Factors" on pages 6 to 17. Unless we indicate
otherwise, "we," "us," "our" and similar terms refer to The Hull Group Inc., its
subsidiaries and the private investment funds which it manages. Unless we
indicate otherwise, the information in this prospectus, other than historical
financial information, gives effect to our conversion from a limited liability
company to a corporation, which will take place immediately before the
completion of this offering.
 
                                  OUR COMPANY
 
OUR BUSINESS
 
       We are a leading global market maker in exchange-traded equity
derivatives and an active market maker in equity securities worldwide. We
provide market-making and transaction execution services to a diverse group of
participants on 28 exchanges in nine countries. Our market-making activities
focus on providing customers with rapid executions at the best possible price.
Since 1985, we have been at the forefront in developing and applying financial
theory, along with information and communication technology, to trading equity
derivatives and equity securities. Our dedicated team of financial engineers,
software developers and traders develop proprietary, real-time valuation and
risk management systems to price and trade equity derivatives and equity
securities for our own account. The Hull System combines financial engineering,
trading and electronic systems to create a competitive advantage. We have
applied the Hull System to expand successfully, first into U.S. markets and then
into international electronic markets.
 
       Our net revenues have increased from $51.7 million in 1994 to $103.1
million in 1998, representing a compound annual growth rate of 18.8%. Over this
period, electronic trading has become increasingly important to our business, as
net revenues through electronic trading have increased from 12.5% to 66.9% of
our total net revenues. We have proven our ability to deliver profitable results
over time as demonstrated by our average annual pre-tax return on average equity
over the last ten years of 38.9% and over the last five years of 42.4%.
 
       In 1998, we traded about 28 million equity derivatives contracts. We
believe we rank among the top three market makers in actively traded U.S. equity
index options, including the S&P 500, the Dow Jones Industrial Average and the
Russell 2000, where we have historically maintained a 6% to 8% market share. We
have captured significant market shares in index and individual equity options,
including the German DAX, the U.K. FT-SE, the French CAC 40 and the Swiss SMI
that we trade on 11 European exchanges. In some cases these market shares are as
high as 24%. We are also active market makers in Hang Seng index options on the
Hong Kong Futures Exchange. We also have access to the Japanese equity
derivatives markets through our alliance with Daiwa Securities, the second
largest securities firm in Japan, and Sumitomo Bank, the second largest bank in
Japan. In addition, we make markets in select individual equity options and
individual equity securities in all major markets in the United States and in
eight foreign countries. In 1998, our automated equity trading system traded
more than two billion shares of stock, representing about 1.2% of the volume on
the New York Stock Exchange.
 
       Through Hull Transaction Services, our market-making activities include
executing and routing orders forwarded to us by online brokers, large retail
broker-dealers, money center banks
<PAGE>   5
 
and hedge funds. We currently execute order flow in over 1,000 issues. In
addition to our market-making activities, we also manage several private
investment funds. Our asset management business uses the technology and
experience developed in our market-making business to provide diversified,
risk-controlled products that are quantitatively driven.
 
       Our risk management system includes active participation at all levels of
the firm, from our executive committee to our trading staff. In evaluating our
risk, we look at risk on a profit center basis, as well as firm-wide. We have a
comprehensive risk management system to monitor, evaluate and manage the risks
inherent in our business. Our automated proprietary trading and risk management
system immediately incorporates all new trades into our overall risk profile on
a real-time basis.
 
       Currently, equity derivatives and equity securities in the United States
are primarily listed and traded on open outcry exchanges. However, there has
been a worldwide trend toward the use of electronic trading platforms. A
majority of equity derivatives and equity securities exchanges worldwide,
including those in France, Germany, Japan, Sweden and Switzerland, are now
completely electronic. Several other exchanges, including exchanges in the
United Kingdom and Australia, have announced plans to convert to electronic
trading platforms. Although the large exchanges in the United States remain open
outcry, even some of those exchanges are adopting electronic trading mechanisms.
Additionally, the International Securities Exchange, a new U.S.-based exchange
formed by a consortium of leading online brokers, has announced it will begin
fully electronic equity options trading in the first quarter of 2000. We believe
the trend toward electronic trading will ultimately result in fully electronic
worldwide markets.
 
OUR COMPETITIVE STRENGTHS
 
       We believe the Hull System has positioned us to compete effectively in
the global equities market, based on the following strengths:
 
       - We are a globally diversified industry leader.  We are a leading market
         maker in both the United States and Europe. We trade over 3,700
         products on 28 exchanges in nine countries worldwide. In 1998, we
         generated 56.7% of our net revenues from our activities outside the
         United States.
 
       - We develop and use sophisticated technology.  We are recognized by
         major exchanges as a pioneer in applying information and communication
         technology to market-making activities worldwide, particularly on
         electronic exchanges.
 
       - We are an innovator in financial engineering and valuation. Our
         financial engineers create valuation and portfolio management models
         that allow us to better understand the relationships between
         derivatives and securities. This understanding increases the efficiency
         and effectiveness of our market-making activities.
 
       - We have strong trading capabilities. We successfully combine our
         trading expertise with state-of-the-art technology and quantitative
         models. We have a trading staff of over 100 people, who implement our
         proprietary valuation models.
 
       - We have sophisticated risk management systems. Our systems allow for
         real-time risk management and enable us to evaluate current market
         exposure and make appropriate portfolio management decisions.
                                        2
<PAGE>   6
 
OUR GROWTH STRATEGY
 
       We intend to enhance our position as a leader in the market-making
industry and grow by:
 
       - Capitalizing on the growth in electronic trading worldwide through the
         use of advanced information and communication technology. We believe
         the U.S. markets will become increasingly electronic, and we intend to
         apply our expertise in electronic trading to benefit from this trend.
 
       - Continuing to expand our market-making activities in existing and new
         markets and products worldwide.
 
       - Developing Hull Transaction Services to become a significant provider
         of trade routing and order execution services to capitalize on the
         growth in online trading.
 
       - Expanding our asset management business to become a significant
         provider of diversified, risk-controlled products.
 
       - Attracting, retaining and developing highly skilled employees. The
         ultimate success of our financial engineering, risk management and
         market-making functions depends on our ability to develop our
         professional employee base.
 
                                  THE OFFERING
 
       The following information does not include up to            additional
shares of our common stock which the underwriters have an option to purchase
from us solely to cover over-allotments. Unless we indicate otherwise, this
prospectus assumes that the underwriters do not exercise this option. If the
underwriters exercise their over-allotment option in full,            shares of
our common stock will be outstanding after the offering.
 
Common stock offered.............               shares
 
Common stock to be outstanding
after the offering...............               shares
 
Use of proceeds..................    We plan to use the net proceeds from the
                                     offering as additional capital for
                                     expanding our market making in existing and
                                     new markets and products, expanding Hull
                                     Transaction Services and our asset
                                     management business and for general
                                     corporate purposes, including investing in
                                     technology systems and personnel. See "Use
                                     of Proceeds."
 
Dividend policy..................    We do not anticipate paying any cash
                                     dividends on our common stock for the
                                     foreseeable future. See "Dividend Policy."
 
Risk factors.....................    See "Risk Factors" and other information
                                     included in this prospectus for a
                                     discussion of factors you should carefully
                                     consider before deciding to buy our common
                                     stock.
 
Proposed Nasdaq National Market
  Symbol.........................    HULL
                                        3
<PAGE>   7
 
                   SUMMARY CONSOLIDATED FINANCIAL INFORMATION
 
       You should read the summary consolidated financial information together
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations," our unaudited pro forma consolidated financial statements and our
consolidated financial statements and their notes included in this prospectus.
 
<TABLE>
<CAPTION>
                                                                                                 THREE MONTHS
                                                   YEARS ENDED DECEMBER 31,                     ENDED MARCH 31,
                                   --------------------------------------------------------   -------------------
                                     1994       1995       1996        1997         1998        1998       1999
                                                                                                  (UNAUDITED)
                                            (IN THOUSANDS, EXCEPT PER SHARE AND PERCENTAGE INFORMATION)
<S>                                <C>        <C>        <C>        <C>          <C>          <C>        <C>
INCOME STATEMENT INFORMATION:
Revenues:
  Market-making activities,
    net(a).......................  $ 48,238   $ 22,450   $ 63,299   $  103,424   $   91,991   $ 20,823   $ 36,643
  Asset management fees..........       153      3,026      6,675       11,610        9,995      2,736      1,099
  Other income...................     3,313        283        478        1,210        1,127        394        119
                                   --------   --------   --------   ----------   ----------   --------   --------
  Net revenues...................    51,704     25,759     70,452      116,244      103,113     23,953     37,861
Total operating expenses.........    23,294     27,013     36,409       56,189       62,552     15,111     16,795
                                   --------   --------   --------   ----------   ----------   --------   --------
Income (loss) before income
  taxes(b).......................  $ 28,410   $ (1,254)  $ 34,043   $   60,055   $   40,561   $  8,842   $ 21,066
                                   ========   ========   ========   ==========   ==========   ========   ========
UNAUDITED PRO FORMA INFORMATION(C):
Pro forma net income.............                                                $   15,732              $  8,822
                                                                                 ==========              ========
Pro forma net income per
  share(d).......................                                                $                       $
                                                                                 ==========              ========
 
OTHER OPERATING INFORMATION:
Pre-tax return on average
  equity.........................     48.7%     (2.0)%      50.3%        71.6%        43.1%      37.5%(e)    82.3%(e)
Percent of net revenues:
  Through electronic trading.....     12.5%      22.3%      22.9%        42.7%        66.9%      52.7%      84.0%
  From foreign operations........     17.2%      14.5%      14.9%        31.1%        56.7%      40.4%      81.7%
Transaction volume:
  Equity derivatives
    (contracts)..................    11,598     10,549      9,540       21,157       27,924      5,368      6,130
  Equity securities (shares).....   180,237    559,341    872,152    1,814,484    3,091,462    467,775    753,645
</TABLE>
 
<TABLE>
<CAPTION>
                                                                       AS OF MARCH 31, 1999
                                                           --------------------------------------------
                                                                           (UNAUDITED)
                                                                                           PRO FORMA AS
                                                                                           ADJUSTED FOR
                                                           HISTORICAL     PRO FORMA(C)       OFFERING
                                                           (IN THOUSANDS, EXCEPT PER SHARE INFORMATION)
<S>                                                        <C>            <C>              <C>
BALANCE SHEET INFORMATION:
Total assets.............................................  $1,480,041      $1,470,798       $1,562,798
Total liabilities........................................   1,370,798       1,370,798        1,370,798
                                                           ----------      ----------       ----------
Total members' equity/stockholders' equity...............  $  109,243      $  100,000       $  192,000
                                                           ==========      ==========       ==========
Book value per share(d)..................................         N/A      $                $
                                                                           ==========       ==========
</TABLE>
 
- ------------------------------
 
(a)  Market-making activities, net, includes revenues from principal
     transactions, interest and dividend income and interest and dividend
     expense, all of which are related to our market-making activities. See
     "Selected Consolidated Financial Information" for more detailed
     information.
 
(b)  Since we have operated historically as a limited liability company, we have
     accounted for incentive-based compensation to our members as distributions
     of members' equity rather than as compensation expense. As a result, our
     income or loss before income taxes and our compensation expense have not
     reflected these amounts for services rendered by our members. Accordingly,
     our income or loss before income taxes understates the expected operating
     costs we will incur after the offering. As a corporation, we will include
     all incentive-based compensation to our employees in compensation expense.
     For financial information that reflects pro forma
                                        4
<PAGE>   8
 
     compensation expense as if we had been a corporation, see our unaudited pro
     forma consolidated financial statements.
 
(c)  The unaudited pro forma information reflects adjustments which are
     necessary, in our management's opinion, for a fair presentation of our
     consolidated financial condition and results of operations on a pro forma
     basis. The pro forma information gives effect to our conversion from a
     limited liability company to a corporation, including incentive-based
     compensation related to services rendered by our former members, the
     provision for corporate income taxes and other transactions as described in
     our unaudited pro forma consolidated financial statements. The adjustments
     for our conversion to a corporation include anticipated distributions to
     members prior to the offering under our limited liability company operating
     agreement, including distributions for member income taxes related to our
     earnings. These distributions will result in total stockholders' equity of
     $100 million immediately before this offering and would have amounted to
     approximately $19.0 million at March 31, 1999. See our unaudited pro forma
     consolidated financial statements for more detailed information concerning
     these adjustments.
 
(d)  Calculated based on the weighted-average shares of our common stock
     outstanding after giving effect to the unaudited pro forma adjustments and
     as adjusted to reflect the issuance of          shares of common stock at
     the midpoint of the range of initial public offering prices listed on the
     cover page of this prospectus. See our unaudited pro forma consolidated
     financial statements for more detailed information concerning these
     adjustments and the calculation of pro forma net income per share. There is
     no difference between basic and diluted pro forma net income per share.
 
(e)  Annualized.
                                        5
<PAGE>   9
 
                                  RISK FACTORS
 
       An investment in our common stock involves a high degree of risk. You
should carefully consider the following factors before you decide to buy our
common stock. You should also consider the other information in this prospectus,
including our consolidated financial statements and the notes to those
statements. The risks and uncertainties described below are not the only ones
facing our firm. Additional risks and uncertainties which we don't presently
know about may also affect us. Any of the following factors may materially
adversely affect our business, results of operations or financial condition. In
that case, the market price of our common stock may decline, and you may lose
all or part of your investment.
 
OUR OPERATING RESULTS MAY FLUCTUATE SIGNIFICANTLY
 
       Our operating results have fluctuated in the past and may fluctuate
significantly in the future, including from quarter to quarter. Therefore,
period-to-period comparisons of our revenues and operating results are not
necessarily meaningful. You should not rely on those comparisons as indicators
of our future performance. These fluctuations may cause volatility in the market
price of our common stock. We may also be unable to sustain our historical rates
of revenue growth or improve our operating results or sustain our profitability
from quarter to quarter. In addition, our operating results in future periods
may be below the expectations of securities analysts and investors. In that
event, the market price of our common stock may decline.
 
       Our net revenues have fluctuated and may continue to fluctuate primarily
due to the securities market risks described in this section. Our expense
structure is based on historical expense levels and the levels of demand for our
market-making services. If our revenues decline and we are unable to adjust our
cost structure on a timely basis, we may experience losses.
 
OUR MARKET-MAKING ACTIVITIES EXPOSE US TO UNIQUE RISKS
 
       We currently derive, and expect to continue to derive, a majority of our
revenues from market-making activities. Our future success will depend on the
continued growth of demand for our market-making services and our ability to
respond to that demand.
 
       We May Experience Significant Losses from Our Market-Making
Activities.  We conduct our market-making activities mainly as a principal,
which subjects our capital to significant risks. These activities involve the
purchase, sale or short sale of securities for our own account and for hedging
purposes. These activities involve a number of risks, including risks of price
fluctuations, changes in interest rates and rapid changes in the liquidity of
markets. These risks may limit our ability either to purchase or sell securities
in those transactions. In addition, we may have difficulty borrowing securities
to deliver to purchasers to whom we sold short, or lenders from whom we have
borrowed.
 
       From time to time, we have large position concentrations in securities of
a single issuer or issuers engaged in a specific industry. We have recently
experienced large position concentrations with the securities of a number of
issuers engaged in technology businesses and services. These concentrations have
in the past resulted, and may in the future result, in higher losses than would
occur if our positions and activities were less concentrated.
 
       As a market maker, we attempt to derive a profit from the difference
between the prices at which we buy and sell securities. However, competitive
forces often require us to match the quotes other market makers display and to
hold varying amounts of securities in inventory.
 
                                        6
<PAGE>   10
 
Maintaining inventory positions subjects us to a high degree of risk. We may be
unable to manage that risk successfully and we may experience significant
losses.
 
       Derivatives Transactions Involve Greater Risks than Other Securities
Transactions and We May Experience Losses as a Result of Those
Risks.  Derivatives transactions involve greater risks than transactions in the
underlying securities. A substantial portion of our activity is in derivatives.
Transactions in option or futures contracts may result in losses which are not
offset by increases in the value of the underlying portfolio of securities or by
declines in the cost of the underlying securities to be acquired. A principal
risk in derivatives transactions is the rapid fluctuation in market prices of
derivatives contracts. In addition, because of the low initial margin deposits
required to establish a derivatives position, derivatives transactions often
involve substantial leverage. As a result, a relatively small movement in the
price of the contract may result in substantial losses.
 
       The holder of an option or futures contract can terminate that contract
prior to its exercise or expiration only by entering into a closing transaction.
This requires a secondary market for the contract on the exchange on which the
contract was purchased. There may not be a liquid secondary market for an option
or futures contract we hold when we wish to close out our position. If there
isn't a liquid secondary market for an option or futures contract we hold, we
may not be able to close out our position and may have to purchase or sell the
underlying security, make or receive a cash settlement or meet ongoing margin
requirements.
 
       Our Hedges and Other Risk Management Policies and Procedures May Not Be
Effective and May Leave Us Exposed to Unidentified or Unexpected Risks.  Our
policies and procedures to identify, monitor and manage risks may not be fully
effective. Some of our methods of managing risk are based on our use of observed
historical market behavior. These methods may not accurately model future risk
exposures, which may be significantly greater than the historical measures
indicate. As a result, we face risks of losses, including potentially
catastrophic losses, if our risk management policies and procedures are not
effective.
 
       We utilize a variety of instruments and strategies to hedge our exposure
to various types of risk. Many of these strategies are based on historical
trading patterns and correlations. For example, if we hold a long position in an
asset, we may hedge that position by taking a short position in an asset which
has historically moved in a direction which would offset a change in the value
of the long position. However, these strategies may not be fully effective in
mitigating our risk exposure in all market environments or against all types of
risk. Unexpected developments may cause market prices to move differently in the
future than they have historically.
 
       We face the risk that the price of the securities being hedged may not
move in the same direction or to the same degree as the contract or securities
underlying the derivatives contract. This risk has three components:
 
       - Correlation risk -- the risk that price movements on a contract on one
         security used to hedge exposure to a different security, i.e.
         "cross-hedging," may not correlate to price movements of the security
         being hedged;
 
       - Basket risk -- the risk that price movements on a basket of securities
         used to hedge exposure to an index will not adequately reflect the
         price movements of the index; and
 
       - Basis risk -- the risk that the price of the derivatives contract and
         the price of the security being hedged may not correlate.
 
                                        7
<PAGE>   11
 
       Our Proprietary Models May Not Generate Accurate Pricing Information and
May Not Apply to New Products.  We rely on the pricing information we derive
from our proprietary valuation models. Our models could fail to generate
accurate theoretical prices for derivatives and securities due to programming or
data processing errors. If that were to happen, we may suffer substantial
losses. Also, we have in the past, and may from time to time in the future,
expand our market-making activities to new products, including non-equity based
products. Our models may not be effective when applied to new products and we
may suffer substantial losses that could cause us to withdraw from trading those
products.
 
WE MAY SUFFER RISKS RELATED TO THE SECURITIES MARKETS
 
       Changes in the Structure of the Securities Markets May Decrease Our
Opportunities and Profits.  If the current market structure changes, order flow
to which we presently have access may be diverted. For example, if we are unable
to adapt to new electronic trading formats, our trading volume and profits may
decrease. Electronic Communications Networks, commonly known as ECNs, have
recently emerged as an alternative forum to which broker-dealers and
institutional investors can direct their limit orders. In addition, the proposed
International Securities Exchange, commonly called ISE, will be the first fully
electronic options market in the United States. If we do not actively
participate in these ECNs or other alternative markets, we may experience a
reduction in our order flow. If significant amounts of trading move from
exchange-based products to the OTC markets, our return on capital may also
decrease because we would need greater amounts of capital to participate in
those markets.
 
       Inefficiencies in the markets in which we have historically operated are
declining, which may make our market-making activities in those markets less
profitable. This decline is reflected in reduced spreads between bid and ask, or
buy and sell, prices and results from several fundamental changes in the
securities markets, including:
 
       - the increased use of technology;
 
       - the emergence of online discount brokers;
 
       - the increased prominence of online investors;
 
       - increased trading volume of institutional investors;
 
       - consolidation among firms in the securities industry; and
 
       - new government regulations.
 
       The spreads market makers receive for executing transactions in equity
derivatives and equity securities may continue to decrease in the future. In the
past, Nasdaq has taken regulatory actions to reduce spreads between bid and ask
prices for securities. Nasdaq, the NYSE and the American Stock Exchange are
currently examining proposed regulations which will require securities to trade
in decimals instead of fractions. The adoption of those regulations would likely
result in a further decrease in spreads between bid and ask prices, which may
make executing transactions and market making less profitable.
 
       Our Revenues May Decrease Due to Declines in Market Volume or Liquidity
or Changes in Prices or Volatility.  As a market-making and asset management
firm, our businesses are materially affected by conditions in the financial
markets and economic conditions generally, both in the United States and
elsewhere around the world. During recent years, unusually favorable and
sustained performance of the equity derivatives and equities securities markets
has
 
                                        8
<PAGE>   12
 
attracted substantial inflows of new funds to those markets. A decline in cash
flows into the U.S. equity markets or a slowdown in investment activity by
mutual funds and other institutional and retail investors may have an adverse
effect on the securities markets generally. If there is a market downturn, our
businesses may be adversely affected in many ways. A decline in the volume of
securities markets or in market liquidity may reduce our market-making
activities and, as a result, may reduce our revenues. Since we hold both long
and short positions, an unusually large increase in market prices, including
changes due to mergers and acquisitions and changes in dividend policies, may
affect our revenues as much as an unusually large decrease in market prices.
 
       In addition, because the fees which we charge for managing private
investment funds are based on the value of their assets and on their
performance, any of the factors described in the preceding paragraph may reduce
the revenues we receive from our asset management business.
 
       We May Experience Losses from Other Risks Associated with the Securities
Industry. The securities business also involves various other risks, including
customer default, employee misconduct, errors and omissions and litigation. We
may experience substantial losses associated with these risks.
 
WE FACE RISKS RELATED TO THE TECHNOLOGIES WE USE
 
       We May Experience Substantial Losses if Our Computer and Communications
Systems Fail.  Our market-making and asset management activities depend on the
integrity and performance of the computer and communications systems supporting
them. Extraordinary transaction volume, equipment failure or other events may
cause our computer systems to operate at an unacceptably low speed or even to
fail. Our backup systems may also fail, or may not be adequate to restore our
operations. Any significant degradation or failure of our computer systems or
any other systems we use to process transactions, or any other systems of third
parties that affect our business, including securities exchange systems, may
cause us to suffer delays in processing transactions. These delays may cause
substantial losses for us and our customers. We cannot assure you that our
network protections will work. Our systems may also fail as a result of a
tornado, fire or other natural disaster, power or telecommunications failure,
terrorism or war.
 
       Year 2000 Problems in Our or Other Parties' Computer Systems May Disrupt
Our Business and Uncertainty About Potential Year 2000 Problems May Reduce Our
Revenues. With the Year 2000 approaching, many companies and governmental
entities around the world are reviewing and modifying their computer systems to
ensure that they are Year 2000 compliant. Many existing computer systems and
microprocessors, including those in non-information technology equipment and
systems, use only two digits to identify a year in the date field with the
assumption that the first two digits of the year are always "19". As a result,
computers which are not Year 2000 compliant may read the year as 1900. Systems
which calculate, compare or sort using the incorrect date may malfunction.
 
       If we fail to identify and fix our transaction processing, securities
valuation, communications or data processing systems or to fix or replace
third-party software, hardware or services on a timely basis, it may, for
example:
 
       - cause settlement of transactions to fail;
 
       - lead to incomplete or inaccurate accounting, recording or processing of
         transactions;
 
       - result in inaccurate pricing and valuation information or give rise to
         uncertainty about our exposure to market risks and our need for
         liquidity; or
 
                                        9
<PAGE>   13
 
       - result in litigation, which may be costly and time-consuming to defend.
 
       In addition, our customers, governmental agencies, utility companies,
Internet access companies, third-party service providers, including our clearing
agents, and others outside our control, particularly exchanges and other
broker-dealers and market makers, may not be Year 2000 compliant. The failure by
any of these entities to be Year 2000 compliant may result in a systematic
failure beyond our control, including:
 
       - a loss or reduction in our order flow;
 
       - limitations on our ability to effectively engage in market-making
         activities; or
 
       - prolonged Internet, telecommunications or electrical failure.
 
       We believe that uncertainty about the Year 2000 problem generally may
cause many market participants to reduce the level of their market activities
temporarily as they assess the effectiveness of these efforts during a
"phase-in" period beginning in late 1999. We believe that lenders are likely to
take similar steps, which will result in a reduction in available funding
sources. As a result, there may be a downturn in customer and general market
activity for a period of time before and after January 1, 2000. This may reduce
our revenues substantially, depending on how long the reduction in activity
continues and how broadly it affects the markets. We cannot predict the
magnitude of the impact which these kinds of reductions may have on our
business.
 
       Third Parties May Infringe Our Intellectual Property Rights and We May
Not Be Able to Renew Licenses to Essential Intellectual Property.  Third parties
may copy or otherwise obtain and use our intellectual property without our
permission. Third parties may also independently develop technologies similar to
ours. These technologies are becoming increasingly easy to duplicate,
particularly as employees leave with proprietary knowledge. Any unauthorized use
of our proprietary technology could increase competition and adversely affect
our business. We may have difficulty monitoring unauthorized uses of our
proprietary technology. The precautions we have taken may not prevent
misappropriation of our technology.
 
       We also license some software from third parties. These licenses are
essential to our business. If any of these third parties terminate our licenses
or stop doing business, we may not be able to replace the licensed software.
 
       In addition, we may have to litigate in the future to:
 
       - protect our trade secrets;
 
       - determine the validity and scope of other parties' proprietary rights;
 
       - defend against claims that we have infringed other parties' rights; or
 
       - defend against claims that our rights are invalid.
 
Any litigation, even if we are successful, may result in significant costs and
divert resources from our business. In addition, if other parties claim that we
have infringed their rights, we may have to enter into royalty or licensing
agreements, even if the claims are without merit. These agreements may not be
available on reasonable terms.
 
                                       10
<PAGE>   14
 
WE CANNOT PREDICT OUR FUTURE CAPITAL NEEDS OR OUR ABILITY TO CONTINUE TO OBTAIN
FINANCING FROM OUR CLEARING BROKERS OR TO SECURE ADDITIONAL FINANCING, WHICH MAY
REQUIRE US TO SELL ASSETS OR REPURCHASE LIABILITIES AT UNFAVORABLE PRICES
 
       Our business depends on the availability of adequate funding and
regulatory capital to meet applicable regulatory requirements. Historically, we
have satisfied these needs from internally generated funds and short-term
borrowings. We rely on our clearing brokers as our primary source of short-term
financing. Our clearing brokers require us to maintain minimum net capital and
if we fail to do so, they may be unwilling to continue to provide us financing.
If our clearing brokers or other sources of short-term financing were unable or
unwilling to provide that financing, we may be unable to find other financing
sources to replace them. If we are unable to obtain additional financing when we
need funds, or if we are unable to continue to obtain short-term financing from
our clearing brokers or other sources, we may need to liquidate securities
positions. Generally, we pledge securities to our clearing brokers to secure
financing. These clearing brokers may liquidate positions if necessary to repay
our borrowings. In some market environments, including times of market
volatility or uncertainty, the market may not be very liquid. In that case, we
may be unable to sell some securities positions, or we may have to sell
securities positions at depressed prices.
 
       We may need to raise additional funds from time to time to support our
expansion into new opportunities or respond to competitive pressures. Additional
financing may not be available when needed on terms favorable to us.
 
WE DEPEND ON OUR ABILITY TO ATTRACT AND RETAIN KEY PERSONNEL
 
       Our future success depends on our ability to attract and retain key
personnel. Competition for highly qualified management, trading, compliance and
technical personnel is intense. We may lose those professionals due to increased
competition or other factors in the future.
 
FINANCIAL OR OTHER PROBLEMS EXPERIENCED BY THIRD PARTIES MAY DISRUPT OUR
BUSINESS OR CAUSE US LOSSES
 
       Third parties which owe us money, securities or other assets may not
perform their obligations. These parties include our counterparties, clearing
brokers, exchanges, clearing houses and other financial intermediaries as well
as issuers whose securities we hold. These parties may default on their
obligations to us due to bankruptcy, lack of liquidity, operational failure or
other reasons. Default risk may arise from events or circumstances which are
difficult to detect, including fraud. We may not receive full information with
respect to the financial condition of a counterparty.
 
       As a market maker, the majority of our securities transactions are
conducted as principal with broker-dealer counterparties. We clear our
securities transactions principally through a few unaffiliated clearing brokers.
In addition, at any time, a substantial portion of our assets are held at one or
more clearing brokers. As a result, we rely on our clearing brokers to discharge
adequately their obligations on a timely basis. If any of our principal clearing
brokers or other financing sources were unable or unwilling to clear our
transactions, we may not be able to find other clearing brokers or financing
sources to replace them.
 
                                       11
<PAGE>   15
 
OUR FUTURE SUCCESS WILL DEPEND ON OUR ABILITY TO MEET INCREASING DEMAND
 
       The worldwide market-making industry is characterized by:
 
       - rapid technological change;
 
       - rapidly increasing transaction volumes;
 
       - changing customer demands;
 
       - the need to enhance existing or introduce new services and products;
         and
 
       - evolving industry standards.
 
New services, products and technologies introduced by other market makers may
render our existing services, products and technologies less competitive. Our
future success will depend on our ability to respond to the demand for existing
services and products and new services, products and technologies on a timely
and cost-effective basis. We may not be successful in developing, introducing or
marketing new services, products and technologies.
 
WE FACE INTENSE COMPETITION, WHICH MAY INCREASE OUR COSTS OR REDUCE OUR REVENUES
 
       We derive a substantial majority of our revenues from market-making
activities. The market for these services is rapidly evolving and intensely
competitive. We expect competition to continue and intensify in the future. We
face competition from many firms varying in size and strategy, some of which
have greater resources than we do. We may not be able to compete effectively
with current or future competitors.
 
       In the United States, large financial institutions represent a
significant group of our competitors. Some of these financial institutions have
shown interest in penetrating the equity derivatives markets recently, including
by acquiring some of our competitors. In addition, our current and potential
competitors have established or may establish other cooperative relationships or
may consolidate to enhance their services and products. These combinations may
acquire significant market share and may possess greater financial and operating
resources than we do.
 
LEGAL AND REGULATORY RISKS ARE INHERENT AND SUBSTANTIAL IN OUR BUSINESS
 
       We Operate Under Extensive Government Regulation.  The securities
industry faces extensive regulation both in the United States and abroad. In the
United States, the SEC, the Commodities Futures Trading Commission, commonly
called the CFTC, the National Association of Securities Dealers, Inc., commonly
called the NASD, the National Futures Association, commonly called the NFA,
securities and commodities exchanges, other self-regulatory organizations,
commonly called SROs, and state securities commissions regulate us. Outside the
United States, we are subject to regulation by securities regulatory authorities
and exchanges in the countries in which we do business. These regulatory bodies
are responsible for safeguarding the integrity of the securities markets and
protecting the interests of participants in those markets. We operate under
regulation concerning aspects of our business, including:
 
       - sales methods;
 
       - trade practices;
 
       - use and safekeeping of customers' funds and securities;
 
       - capital structure;
 
                                       12
<PAGE>   16
 
       - record-keeping
 
       - financing of customers' purchases; and
 
       - conduct of directors, officers and employees.
 
       Regulatory Limits and Actions May Affect Our Ability to Liquidate or Hold
Positions in Futures or Option Contracts.  The liquidity of a secondary market
in futures or option contracts may be adversely affected by limits established
by commodities exchanges on the amount of fluctuation in a contract price during
a single trading day. Once the contract reaches the daily limit, the exchanges
will not permit any transactions at a price beyond the limit, which may prevent
us from liquidating open futures positions and require us to make additional
margin deposits. Also, the liquidity of a secondary market in futures or option
contracts on an exchange may be adversely affected by other factors, including
the following:
 
       - exchanges may restrict opening or closing transactions or both;
 
       - exchanges may stop or suspend trading in particular classes or series
         of contracts or underlying securities;
 
       - government intervention may interrupt normal operations on an exchange;
         and
 
       - exchanges may, for economic or other reasons, decide to discontinue the
         trading of futures or option contracts, or a particular class or series
         of contracts.
 
       The exchanges on which we operate may impose limits on the maximum number
of positions on the same side of the market which an investor may hold in an
underlying security. In addition, some regulatory authorities and exchanges have
established limits on the maximum net long or net short position which a single
investor may hold or control in a particular futures or option contract.
Although our firm and the funds which we manage are not currently considered a
single investor for these purposes, these limits may still affect our
operations, particularly if they were considered a single investor in the
future. These regulatory authorities and exchanges may require an investor to
liquidate any positions in excess of those limits and may impose other sanctions
or restrictions.
 
       Our Business Involves Substantial Risks of Litigation and Potential
Securities Laws Liability.  Many aspects of our business involve substantial
risks of liability. We are exposed to substantial liability under Federal, state
and foreign securities laws, other Federal, state and foreign laws and court
decisions, as well as rules and regulations adopted by domestic and foreign
regulatory authorities and SROs. We also face the risk of litigation and claims
which may be without merit. We may incur significant legal expenses defending
against those claims.
 
       We, and some of our officers and employees, have, in the past, been
involved in claims under these laws, rules and regulations. These claims have
resulted in the payment of fines and settlements. We and our officers and other
employees may, in the future, be involved in similar claims. An adverse ruling
against us or our officers or other employees may result in us or our officers
or other employees being required to pay a substantial fine or settlement and
may result in temporary or permanent suspension of trading privileges.
 
       The regulatory environment in which we operate may change. Our
market-making and asset management activities may be affected not only by
legislation or regulations of general applicability, but also by
industry-specific legislation or regulations. The SEC, the CFTC, other U.S. or
foreign governmental regulatory authorities, the NASD, the NFA, securities and
commodities exchanges or other SROs may all adopt new or revised regulations
which affect our
 
                                       13
<PAGE>   17
 
business. Changes in the interpretation or enforcement of existing laws and
rules by those entities may also affect our business. In particular, our
market-making activities do not currently expose us to transaction taxes.
However, governmental authorities have from time to time proposed taxes on
transactions in equity derivatives and equity securities. The imposition of any
transaction taxes may significantly reduce the profitability of our
market-making activities.
 
       We Must Meet Regulatory Capital Requirements, Which May Restrict Our
Ability to Withdraw Capital from Our Subsidiaries. The SEC, the NASD and various
other regulatory agencies have stringent rules with respect to the maintenance
of specific levels of regulatory capital by securities brokers. These rules
include the SEC's Uniform Net Capital Rules. If we fail to maintain the required
regulatory capital, we may be subject to suspension or revocation of
registration. In addition, a change in the regulatory capital rules, a change in
the interpretation of existing rules or the imposition of new rules or any
unusually large charge against regulatory capital may limit our operations which
require the intensive use of capital or restrict our ability to withdraw capital
from our regulated subsidiaries. Any limitation on our ability to withdraw
capital may limit our ability to pay cash dividends, repay debt or repurchase
shares of our outstanding stock. A significant operating loss or any unusually
large charge against regulatory capital may adversely affect our ability to
expand or even maintain our present levels of business.
 
RISKS INHERENT IN INTERNATIONAL BUSINESS MAY REDUCE OUR PROFITS
 
       We have market-making activities in equity derivatives and equity
securities markets in several foreign countries, in addition to the United
States. We intend to expand our business to other international markets, which
may include emerging markets. Many foreign countries have extensive laws and
regulations governing the securities industry. In some of these countries, the
laws and regulations are evolving and we may have difficulty determining their
exact requirements. The compliance requirements of these different countries may
limit our ability to expand internationally. We may not be able to obtain the
necessary regulatory approvals to expand internationally or, if we obtain the
approvals, we may not be able to continue to comply with those laws and
regulations. In addition, third parties with which we have formed alliances may
fail to comply with applicable laws and regulations. Their actions may affect
the success of our alliances and subject us to penalties or liability.
 
       Some of the foreign exchanges on which we operate may require different
margin, exercise, settlement or expiration procedures from those on U.S.
exchanges. In some of these foreign markets, many of the protections provided in
U.S. exchange transactions are not available. For example, they may not have
daily price fluctuation limits so market movements may continue to an unlimited
extent.
 
       In addition, there are other risks inherent in doing business in
international markets, including:
 
       - exchange controls or other restrictions, which may restrict our ability
         to convert local currency into U.S. dollars or other currencies, or to
         take those dollars or other currencies out of those countries;
 
       - tariffs and other trade barriers;
 
       - difficulties in staffing and supervising foreign operations;
 
       - political, economic and financial instability; and
 
       - fluctuations in currency exchange rates, including possible currency
         devaluations, which may adversely affect the value in U.S. dollar terms
         of assets we hold.
 
                                       14
<PAGE>   18
 
       As we continue to expand our business in international markets, our
exposure to these risks will increase.
 
WE MAY HAVE DIFFICULTY MANAGING OUR GROWTH
 
       Over the last several years, we have experienced significant growth in
our business and the number of our employees. We may not be able to manage our
growth successfully. The increased costs associated with our expected growth may
not be offset by corresponding increases in our revenues. The growth of our
business has also placed a significant strain on our management and operations
and we expect it to continue to do so in the near future. This growth has
required and will continue to require us to increase our investment in
management personnel, financial and management systems and controls and
facilities. In addition, if we acquire other businesses in the future, we may
not be able to successfully incorporate these new businesses into our
operations.
 
OUR DIRECTORS AND EXECUTIVE OFFICERS OWN A SIGNIFICANT PERCENTAGE OF OUR COMMON
STOCK AND WILL BE ABLE TO CONTROL OUR FIRM AND PREVENT A TAKEOVER OF OUR FIRM
 
       Immediately after the offering, our directors and executive officers will
collectively own approximately   % of our outstanding common stock, assuming
that the underwriters do not exercise their overallotment option. M. Blair Hull,
our Chairman and Chief Executive Officer, individually will own approximately
     % of our outstanding common stock immediately after the offering, assuming
that the underwriters do not exercise their overallotment option. As a group,
our directors and executive officers will be able to:
 
       - control the election of all of the members of our Board;
 
       - significantly influence the approval of all matters requiring
         stockholder approval; and
 
       - continue to have significant control over our affairs.
 
As a result, our directors and officers will be able to delay or prevent a
transaction which would cause a change in our control, even if our other
stockholders consider the transaction to be in their best interests.
 
PROVISIONS OF DELAWARE LAW AND OUR CERTIFICATE OF INCORPORATION AND BYLAWS MAY
DELAY OR PREVENT A TAKEOVER OF OUR FIRM
 
       We are organized under the laws of the State of Delaware. Some provisions
of Delaware law may delay or prevent a transaction which would cause a change in
our control. In addition, our certificate of incorporation contains some
provisions which may delay or prevent this type of transaction, even if our
stockholders consider the transaction to be in their best interests. Our
certificate of incorporation authorizes our Board to determine the number of
shares and the terms of any unissued series of our preferred stock without any
vote or action by our stockholders. As a result, our Board can authorize and
issue shares of preferred stock with voting or conversion rights which may
adversely affect the voting or other rights of holders of our common stock. In
addition, the rights given to the holders of a series of preferred stock may
prohibit a merger, reorganization, sale of all or substantially all of our
assets, liquidation or other extraordinary corporate transaction.
 
       Our certificate of incorporation divides our Board into three classes of
directors, so only approximately one-third of the directors will be subject to
reelection each year. Also, we have
 
                                       15
<PAGE>   19
 
adopted advance notice provisions in our bylaws which require our stockholders
to present their nominations for directors or other business proposals within a
specified time frame. These provisions make the removal of incumbent directors
and the election of new directors more time-consuming and difficult, which may
discourage third parties from attempting to obtain control of our firm, even if
the change in control would be in the best interests of our stockholders.
 
THERE ARE SPECIFIC RISKS RELATING TO THIS OFFERING
 
       An Active Trading Market May Not Develop or Continue.  Before the
offering, no public market has existed for our common stock and an active
trading market may not develop or continue. We will negotiate the initial public
offering price of our common stock with the representatives of the underwriters,
but the price may not reflect the market price for our common stock after the
offering.
 
       The price of our common stock may fluctuate widely, depending on many
factors, including:
 
       - the perceived prospects of our firm and the securities industry in
         general after the offering;
 
       - differences between our actual financial and operating results and
         those expected by investors and analysts;
 
       - changes in analysts' recommendations or projections; and
 
       - changes in general economic or market conditions and broad market
         fluctuations.
 
Our common stock may trade at prices significantly below the initial public
offering price. We will apply to list our common stock on the Nasdaq National
Market. That listing does not, however, guarantee that an active trading market
for our common stock will develop and continue after the offering.
 
       Investors Will Incur Immediate and Substantial Dilution.  The estimated
initial public offering price of our common stock is substantially higher than
the pro forma net tangible book value per share of our outstanding common stock
immediately after the offering. If you purchase common stock in this offering,
you will incur immediate and substantial dilution in the pro forma net tangible
book value per share from the price you pay for our common stock.
 
       Future Sales by Existing Stockholders May Depress the Market Price of Our
Common Stock.  If our stockholders sell substantial amounts of our common stock
in the public market after the offering, the market price of our common stock
may fall. Those sales also may make it more difficult for us to sell stock in
the future at an appropriate time and price. After the offering,         shares
of our common stock will be outstanding if the underwriters do not exercise
their overallotment option. Of those shares, only the         shares which we
are offering in this offering will be freely tradeable. Our directors and
officers will own the remaining         shares. They may sell those shares into
the public market in the future after they satisfy their required holding
periods.
 
       We Have Significant Discretion in the Use of Proceeds.  We plan to use
the net proceeds from the offering as additional capital for expanding market
making in existing and new markets and products, expanding Hull Transaction
Services and our asset management business, and for general corporate purposes,
including investing in technology systems and personnel and identifying and
pursuing strategic opportunities as they may arise from time to time. We will
 
                                       16
<PAGE>   20
 
have significant discretion in applying the net proceeds of this offering.
Although we have no plans or agreements regarding any material acquisitions on
the date of this prospectus, we may seek acquisitions of complementary
businesses, products or technologies, and we may use a portion of the net
proceeds for those acquisitions.
 
                           FORWARD-LOOKING STATEMENTS
 
       This prospectus contains some "forward-looking statements" based on our
current expectations, assumptions, estimates and projections about our firm and
our industry. These forward-looking statements also involve risks and
uncertainties. Our actual results may differ materially from those anticipated
in the forward-looking statements. Factors which may cause or contribute to
those differences include those discussed in the "Risk Factors" section and
elsewhere in this prospectus. We will not necessarily update publicly any
forward-looking statements for any reason, even if new information becomes
available or other events occur in the future.
 
                                  OUR COMPANY
 
       Our firm was formed in 1985 as Hull Trading Company, an Illinois general
partnership. In 1995, we converted to an Illinois limited liability company with
the name Hull Trading Company, L.L.C. and on January 1, 1999, we changed our
name to Hull and Associates, L.L.C. On November 12, 1998, we formed Hull Trading
Company, L.L.C., a Delaware limited liability company, as our wholly owned
subsidiary. Immediately prior to the closing of this offering, we will convert
our business form to a corporation. We will reorganize by merging Hull and
Associates, L.L.C. into a newly formed Delaware corporation called The Hull
Group Inc. In connection with the reorganization, M. Blair Hull Inc., a family
holding company for M. Blair Hull, our Chairman and Chief Executive Officer, and
members of his family, will be merged into The Hull Group Inc. The only
consequence of this merger will be that a number of our shares of common stock
equal to the shares of our common stock owned by the family holding company will
be owned directly by its stockholders.
 
       Our main offices are at 311 South Wacker Drive, Chicago, Illinois 60606
and our telephone number is (312) 697-2700.
 
                                USE OF PROCEEDS
 
       We estimate that the net proceeds to us from selling our common stock in
the offering will be approximately $92.0 million, or $106.0 million if the
underwriters exercise their over-allotment option in full, after deducting our
estimated offering and transaction expenses and underwriting discounts and
commissions. These amounts assume an initial public offering price of $     per
share, which is the midpoint of the range listed on the cover page of this
prospectus. We plan to use the net proceeds from the offering as additional
capital for expanding market making in existing and new markets and products,
expanding Hull Transaction Services and our asset management business, and for
general corporate purposes, including investing in technology systems and
personnel. We may also use a portion of the proceeds of this offering to pursue
acquisitions of or strategic investments in businesses, products or technologies
that are complementary to our business. We do not have any commitments or
agreements with respect to any acquisitions or investments.
 
                                       17
<PAGE>   21
 
                                DIVIDEND POLICY
 
       We intend to retain future earnings, if any, to finance the growth of our
business, and do not anticipate paying any cash dividends on our common stock
for the foreseeable future. The payment of dividends is within our Board's
discretion and will depend on our results of operations, financial condition,
capital requirements and future prospects, restrictions imposed by our financing
arrangements, legal and regulatory restrictions and other factors that our Board
deems relevant.
 
                                       18
<PAGE>   22
 
                                    DILUTION
 
       Our pro forma net tangible book value on March 31, 1999 was approximately
$100 million, or $     per share of our common stock. Net tangible book value
per share represents the amount of our total tangible assets minus our total
liabilities, divided by the            shares of our common stock that were
outstanding on March 31, 1999 on a pro forma basis. The pro forma information
gives effect to our conversion from a limited liability company to a
corporation, including incentive-based compensation related to services rendered
by our former members, the provision for corporate income taxes and other
transactions as described in our unaudited pro forma consolidated financial
statements. The adjustments for our conversion to a corporation include
anticipated distributions to members prior to the offering under our limited
liability company operating agreement, including distributions for member income
taxes related to our earnings. After giving effect to the sale of
shares of our common stock in the offering at an assumed initial public offering
price of $     per share, which is the midpoint of the range listed on the cover
page of this prospectus, resulting in estimated net proceeds of $92 million, our
pro forma net tangible book value on March 31, 1999 would have been
approximately $192 million, or $     per share. This represents an immediate
increase in pro forma net tangible book value of $     per share to our existing
stockholders and an immediate dilution of $     per share to new investors who
purchase our common stock in the offering at the assumed initial public offering
price. The following table shows this immediate and substantial per share
dilution:
 
<TABLE>
<S>                                                           <C>      <C>
Assumed initial public offering price per share.............           $
  Pro forma net tangible book value per share on March 31,
     1999, before giving effect to the offering.............  $
  Increase in pro forma net tangible book value per share
     attributable to the offering...........................
                                                              ------
Pro forma net tangible book value per share on March 31,
  1999, after giving effect to the offering.................
                                                                       ------
Dilution in pro forma net tangible book value per share to
  new investors.............................................           $
                                                                       ======
</TABLE>
 
       The following table summarizes the differences between the number of
shares of our common stock purchased from us, the total cash consideration paid
to us and the average price per share paid by our existing stockholders and by
new investors in the offering at an assumed initial public offering price of
$     per share:
 
<TABLE>
<CAPTION>
                            SHARES PURCHASED     TOTAL CONSIDERATION
                           -------------------   --------------------   AVERAGE PRICE
                            NUMBER     PERCENT     AMOUNT     PERCENT   PAID PER SHARE
<S>                        <C>         <C>       <C>          <C>       <C>
Existing stockholders....                    %   $                  %       $
New investors............
                           ---------    -----    ----------    -----
  Total..................               100.0%   $             100.0%
                           =========    =====    ==========    =====
</TABLE>
 
       If the underwriters exercise their over-allotment option in full, our pro
forma net tangible book value per share of common stock on March 31, 1999 would
be $     per share after giving effect to the offering. This represents dilution
of $     per share to new investors who purchase our common stock in the
offering at the assumed initial public offering price. In that case, the number
of shares purchased by new investors would increase to            , or      % of
the total number of shares of our common stock to be outstanding after the
offering, and the         shares held by our existing stockholders would
represent      % of the total number of shares to be outstanding after the
offering.
 
                                       19
<PAGE>   23
 
                                 CAPITALIZATION
 
       The following table shows our consolidated capitalization on March 31,
1999, on an historical basis, on a pro forma basis and on a pro forma basis as
adjusted to give effect to the sale of            shares of our common stock in
the offering at an assumed initial public offering price of $     per share,
resulting in estimated net proceeds of $92.0 million. The pro forma information
gives effect to our conversion from a limited liability company to a
corporation, including incentive-based compensation related to services rendered
by our former members, the provision for corporate income taxes and other
transactions as described in our unaudited pro forma consolidated financial
statements. The adjustments for our conversion to a corporation include
anticipated distributions to members prior to the offering under our limited
liability company operating agreement, including distributions for member income
taxes related to our earnings. You should read this table together with
"Management's Discussion and Analysis of Financial Condition and Results of
Operations," our unaudited pro forma consolidated financial statements and our
consolidated financial statements and their notes included in this prospectus.
 
<TABLE>
<CAPTION>
                                                                    AS OF MARCH 31, 1999
                                                            -------------------------------------
                                                                                      PRO FORMA
                                                                                     AS ADJUSTED
                                                            HISTORICAL   PRO FORMA   FOR OFFERING
                                                                         (UNAUDITED)
                                                                       (IN THOUSANDS)
<S>                                                         <C>          <C>         <C>
Short-term debt...........................................   $     --    $     --      $     --
                                                             ========    ========      ========
Long-term debt............................................   $     --    $     --      $     --
 
Members' equity...........................................    109,243          --            --
Stockholders' equity:
  Common stock, par value $0.01 per share; 100,000,000
     shares authorized,           shares issued and
     outstanding (pro forma),           shares issued and
     outstanding (pro forma as adjusted)..................         --
  Additional paid-in capital..............................         --     116,000       208,000
  Retained earnings.......................................         --          --            --
  Unearned compensation(a)................................         --     (16,000)      (16,000)
                                                             --------    --------      --------
     Total stockholders' equity(b)........................         --     100,000       192,000
                                                             --------    --------      --------
     Total capitalization.................................   $109,243    $100,000      $192,000
                                                             ========    ========      ========
</TABLE>
 
- ------------------------------
 
(a)  Unearned compensation relates to the awards under our 1999 Special
     Restricted Stock Plan.
 
(b)  We are also authorized to issue 25,000,000 shares of preferred stock, par
     value $0.01 per share. No shares of our preferred stock are currently
     outstanding.
 
                                       20
<PAGE>   24
 
                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
 
       We have derived the selected historical consolidated income statement
information for the years ended December 31, 1996, 1997 and 1998 from our
audited consolidated financial statements and their notes. Those audited
financial statements are included in this prospectus. We have derived the
summary historical consolidated income statement information for the years ended
December 31, 1994 and 1995 from our audited consolidated financial statements
and their notes. Those financial statements are not included in this prospectus.
 
       We have derived the selected historical consolidated income statement
information for the three months ended March 31, 1998 and 1999 and the balance
sheet information as of March 31, 1999 from our unaudited interim consolidated
financial statements included in this prospectus, and in our management's
opinion, those financial statements include all adjustments, which are of a
normal recurring nature, necessary for a fair presentation. Our operating
results for the three months ended March 31, 1999 do not necessarily indicate
results that we expect for the year ended December 31, 1999.
 
       We have derived the unaudited pro forma information for the year ended
December 31, 1998 and as of and for the three months ended March 31, 1999 from
our unaudited pro forma consolidated financial statements included in this
prospectus. The unaudited pro forma information does not represent our results
of operations for any future date or period.
 
       You should read the selected consolidated financial information together
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations," our unaudited pro forma consolidated financial statements and our
consolidated financial statements and their notes included in this prospectus.
 
<TABLE>
<CAPTION>
                                                                                         THREE MONTHS
                                               YEARS ENDED DECEMBER 31,                 ENDED MARCH 31,
                                   -------------------------------------------------   -----------------
                                    1994      1995      1996       1997       1998      1998      1999
                                                                                          (UNAUDITED)
                                                              (IN THOUSANDS)
<S>                                <C>       <C>       <C>       <C>        <C>        <C>       <C>
INCOME STATEMENT INFORMATION:
Revenues:
  Market-making activities.......  $47,772   $22,330   $60,443   $109,637   $ 96,234   $20,395   $37,640
  Asset management fees..........      153     3,026     6,675     11,610      9,995    2,736      1,099
  Interest & dividends...........    3,368     4,845    17,525     61,137     45,489   13,169     13,343
  Other income...................    3,313       283       478      1,210      1,127      394        119
                                   -------   -------   -------   --------   --------   -------   -------
    Total revenues...............   54,606    30,484    85,121    183,594    152,845   36,694     52,201
  Interest & dividend expense....    2,902     4,725    14,669     67,350     49,732   12,741     14,340
                                   -------   -------   -------   --------   --------   -------   -------
  Net revenues...................   51,704    25,759    70,452    116,244    103,113   23,953     37,861
Operating expenses:
  Compensation...................   12,136    11,475    17,225     23,603     25,400    5,498      7,656
  Market-making related costs....    4,239     5,287     8,784     17,496     20,315    5,138      4,894
  Other operating expenses.......    6,919    10,251    10,400     15,090     16,837    4,475      4,245
                                   -------   -------   -------   --------   --------   -------   -------
    Total operating expenses.....   23,294    27,013    36,409     56,189     62,552   15,111     16,795
                                   -------   -------   -------   --------   --------   -------   -------
Income (loss) before income
  taxes(a).......................  $28,410   $(1,254)  $34,043   $ 60,055   $ 40,561   $8,842    $21,066
                                   =======   =======   =======   ========   ========   =======   =======
 
Net income (loss)................  $28,129   $  (541)  $33,700   $ 52,747   $ 29,660   $6,907    $16,378
                                   =======   =======   =======   ========   ========   =======   =======
</TABLE>
 
                                       21
<PAGE>   25
 
<TABLE>
<CAPTION>
                                                                                                THREE MONTHS
                                           YEARS ENDED OR AS OF DECEMBER 31,                   ENDED MARCH 31,
                                --------------------------------------------------------   -----------------------
                                  1994       1995       1996        1997         1998         1998         1999
                                                                                                 (UNAUDITED)
                                           (IN THOUSANDS, EXCEPT PER SHARE AND PERCENTAGE INFORMATION)
<S>                             <C>        <C>        <C>        <C>          <C>          <C>          <C>
UNAUDITED PRO FORMA
  INFORMATION(B):
Pro forma net income..........                                                $   15,732                $    8,822
Pro forma stockholders' equity
  as adjusted for the
  offering....................                                                                             192,000
Pro forma book value per share
  as adjusted for the
  offering....................
Pro forma net income per
  share(c)....................
BALANCE SHEET INFORMATION:
Total assets..................  $309,597   $582,737   $893,816   $1,652,292   $1,793,095   $2,404,342   $1,480,041
Total liabilities.............   244,537    522,434    818,869    1,559,585    1,697,516    2,308,400    1,370,798
Total members' equity/
  stockholders' equity........    65,060     60,303     74,947       92,707       95,579       95,942      109,243
Long-term borrowings..........        --      6,000         --           --           --           --           --
OTHER OPERATING INFORMATION:
Pre-tax return on average
  equity......................      48.7%      (2.0)%     50.3%        71.6%        43.1%        37.5%(d)       82.3%(d)
Percent of net revenues:
  Through electronic
    trading...................      12.5%      22.3%      22.9%        42.7%        66.9%        52.7%        84.0%
  From foreign operations.....      17.2%      14.5%      14.9%        31.1%        56.7%        40.4%        81.7%
Transaction volume:
  Equity derivatives
    (contracts)...............    11,598     10,549      9,540       21,157       27,924        5,368        6,130
  Equity securities
    (shares)..................   180,237    559,341    872,152    1,814,484    3,091,462      467,775      753,645
</TABLE>
 
- ------------------------------
 
(a) Since we have operated historically as a limited liability company, we have
    accounted for incentive-based compensation to our members as distributions
    of members' equity rather than as compensation expense. As a result, our
    income or loss before income taxes and our compensation expense have not
    reflected these amounts for services rendered by our members. Accordingly,
    our income or loss before income taxes understates the expected operating
    costs we will incur after the offering. As a corporation, we will include
    all incentive-based compensation to our employees in compensation expense.
    For financial information that reflects pro forma compensation expense as if
    we had been a corporation, see our unaudited pro forma consolidated
    financial statements.
 
(b) The unaudited pro forma information reflects adjustments which are
    necessary, in our management's opinion, for a fair presentation of our
    consolidated financial condition and results of operations on a pro forma
    basis. The pro forma information gives effect to our conversion from a
    limited liability company to a corporation, including incentive-based
    compensation related to services rendered by our former members, the
    provision for corporate income taxes and other transactions as described in
    our unaudited pro forma consolidated financial statements. The adjustments
    for our conversion to a corporation include anticipated distributions to
    members prior to the offering under our limited liability company operating
    agreement, including distributions for member income taxes related to our
    earnings. These distributions will result in total stockholders' equity of
    $100.0 million immediately before this offering and would have amounted to
    approximately $19.0 million at March 31, 1999. See our unaudited pro forma
    consolidated financial statements for more detailed information concerning
    these adjustments.
 
(c) Calculated based on the weighted-average shares of our common stock
    outstanding after giving effect to the unaudited pro forma adjustments and
    as adjusted to reflect the issuance of          shares of common stock at
    the midpoint of the range of initial public offering prices listed on the
    cover page of this prospectus. See our unaudited pro forma consolidated
    financial statements for more detailed information concerning these
    adjustments and the calculation of pro forma net income per share. There is
    no difference between basic and diluted pro forma net income per share.
 
(d) Annualized.
 
                                       22
<PAGE>   26
 
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS
 
       You should read the following discussion and analysis along with our
consolidated financial statements and the notes to those statements included in
this prospectus. The discussion contains some forward-looking statements based
on our current expectations, estimates and projections about our firm and our
industry. Our actual results may differ materially from those anticipated in the
forward-looking statements. Factors which could cause or contribute to those
differences include, but are not limited to, those discussed in this section and
elsewhere in this prospectus, particularly in the "Risk Factors" section.
 
OVERVIEW
 
       We are a leading global market maker in exchange-traded equity
derivatives and an active market maker in equity securities worldwide. We
provide market-making and transaction execution services to a diverse group of
participants on 28 exchanges in nine countries. The focus of our market-making
activities is to provide customers with rapid executions at the best possible
price.
 
       Our lines of business are worldwide market-making activities and asset
management. Through Hull Transaction Services, our market-making activities
include executing and routing orders forwarded to us primarily by online
brokers, large retail broker-dealers, money center banks and hedge funds. We
make markets in listed U.S. equity index options and in selected individual
equity options in all major markets in the United States. We also make markets
in a variety of equity index options and individual equity options in eight
foreign countries, primarily on electronic exchanges located in Europe and Asia.
In addition to derivatives market making, we make markets in individual equity
securities on U.S. and foreign exchanges. We also provide asset management
services to outside investors by applying our expertise in valuation, electronic
trading, portfolio construction, technology and risk management.
 
       Immediately before the closing of this offering, we will convert our
business form from a limited liability company to a corporation. We will
reorganize by merging Hull and Associates, L.L.C. into a newly formed Delaware
corporation called The Hull Group Inc. In connection with this reorganization,
our limited liability company operating agreement will terminate. Each member of
Hull and Associates will receive shares of our common stock in exchange for his
or her percentage interest in Hull and Associates at a rate of            shares
per percentage interest, for an aggregate of            shares of common stock.
Immediately before this reorganization, we expect that the members of Hull and
Associates will distribute some members' equity from Hull and Associates in
accordance with our limited liability company operating agreement, including
distributions for members' income taxes related to our earnings.
 
DERIVATIVES
 
       Derivatives are financial instruments that derive their value from
underlying assets, indices, reference rates or a combination of these variables.
Equity derivatives typically include options, futures, forwards, convertible
securities and swaps. Equity derivatives provide dealers and customers the
opportunity to harness market volatility and manage risk.
 
       Our derivative transactions are an integral part of our market-making
activities. The derivative instruments we enter into are generally traded on
exchanges. We use derivatives in our market-making activities to facilitate
customer transactions, to take proprietary positions and to
 
                                       23
<PAGE>   27
 
manage risk. We also enter into derivative transactions to manage our interest
rate and foreign currency exposure.
 
REVENUE TRENDS
 
       Our net revenues from electronic trading have increased significantly in
recent years and have comprised an increasing percentage of our total
market-making revenues. The following table shows our net revenues derived
through market-making processes that are electronic:
 
<TABLE>
<CAPTION>
                                          YEARS ENDED DECEMBER 31,       THREE MONTHS
                                       ------------------------------        ENDED
                                         1996       1997       1998     MARCH 31, 1999
                                        (IN THOUSANDS, EXCEPT PERCENTAGE INFORMATION)
<S>                                    <C>        <C>        <C>        <C>
Net revenues through electronic
  trading............................  $16,118    $49,594    $68,954        $31,806
Net revenues through electronic
  trading as % of net revenues.......     22.9%      42.7%      66.9%          84.0%
</TABLE>
 
       This trend is a result of our ability to capitalize on the migration of
foreign exchanges to electronic platforms. Through the use of our proprietary
information and communications technology, we have been able to expand our
market-making activities into new electronic markets. Because exchanges in
Europe and Asia have adopted electronic trading platforms more broadly than U.S.
exchanges, our net revenues from our operations in Europe and Asia have
represented an increasing percentage of our net revenues, as the following table
shows:
 
<TABLE>
<CAPTION>
                                                  YEARS ENDED
                                                 DECEMBER 31,         THREE MONTHS
                                             ---------------------       ENDED
                                             1996    1997    1998    MARCH 31, 1999
<S>                                          <C>     <C>     <C>     <C>
Net revenues from U.S. operations..........   85.2%   68.9%   43.3%       18.3%
Net revenues from European
  operations...............................   13.5    30.3    50.0        71.0
Net revenues from Asian operations.........    1.3     0.8     6.7        10.7
                                             -----   -----   -----       -----
          Net revenues.....................  100.0%  100.0%  100.0%      100.0%
                                             =====   =====   =====       =====
</TABLE>
 
We believe that the foreign electronic markets will continue to be a key part of
our growth strategy.
 
REVENUES
 
       Our revenues consist principally of revenues from market-making
activities as well as management and incentive fees from our asset management
business. We derive revenues from market-making activities by capturing the
spread between the bid, the price at which we stand ready to buy securities, and
the ask, the price at which we stand ready to sell securities. In doing this, we
build up inventories of securities. Our revenues from market-making activities
also include net gains or losses from these inventories. Managing the inherent
risk in these inventories is integral to our profitability. Additionally, to the
extent we have a long position in a security, we may receive dividend income and
may pay interest for the cost of carry, and conversely, if we have a short
position in a security we may receive interest income and may incur dividend
expense to the holder of the security. Our net revenues from market-making
activities include our net interest and dividend income and expense.
 
       Our market-making revenues are primarily affected by market volume, price
volatility and liquidity. Our securities inventories are generally maintained on
a market-neutral basis. As a
 
                                       24
<PAGE>   28
 
result, the portfolio is structured so that a change in market prices should not
affect our profitability. A decline in the volume of securities markets or in
market liquidity may reduce our market-making activities and assets under
management and, as a result, may reduce our revenues. Lower price levels of
securities or reduced volatility on securities markets may result in reduced
volume and reduce our revenues. Sudden sharp unanticipated movements in market
values of securities may also reduce our revenues.
 
OPERATING EXPENSES
 
       Our operating expenses largely consist of employee compensation and
market-making related costs. A substantial portion of these expenses is variable
in nature. Employee compensation expense, which is largely incentive-based,
fluctuates, for the most part, based on changes in net revenues and our
profitability. Market-making related costs consist of execution, clearing and
brokerage fees, which fluctuate primarily based on changes in trade and share
volume, the mix of domestic versus foreign volume and the clearing fees charged
by our clearing brokers.
 
       Since historically we have operated as a limited liability company,
bonuses paid or to be paid to our principals have been accounted for as
distributions rather than as compensation expense. After our conversion to a
corporation, we will include these payments to our former principals in
compensation expense as discussed in our unaudited pro forma consolidated
financial statements included in this prospectus.
 
       Compensation expense primarily consists of salaries and benefits and
incentive-based compensation paid to personnel. Incentive-based compensation
paid to market-making personnel is a function of individual performance, profit
center performance and total firm profitability. In calculating each profit
center's performance, we take into account the risk inherent in our
market-making activities by reducing the return on capital based on the amount
of risk taken. Because each individual market maker is compensated based on
risk-adjusted returns, this provides financial incentives to align their
interests with the firm's risk profile. Incentive-based compensation paid to all
other personnel is a function of individual performance and total firm
profitability. Incentive-based compensation, including the bonuses paid to our
principals described in the prior paragraph, represented 52.7%, 64.8%, 51.6% and
61.8% of total employee compensation and benefits expense for the years ended
December 31, 1996, 1997 and 1998 and the period ended March 31, 1999.
 
       Market-marking related costs primarily represent clearing fees paid to
clearing brokers to process and clear exchange-traded transactions. Clearing
fees are traditionally higher for foreign transactions than for domestic
transactions. Clearing fees are higher for equity securities transactions than
for exchange-traded equity derivatives transactions. Due to our high volume, we
have been able to negotiate volume discounts from a majority of our clearing
brokers.
 
INCOME TAXES
 
       As a limited liability company we did not incur any U.S. Federal or state
income taxes. The taxable income or loss was included in the respective income
taxes of the members. In connection with the completion of the reorganization,
we will become taxable as a "C" corporation for Federal and state income tax
purposes. The income taxes reflected in the historical consolidated financial
statements relate to our foreign subsidiaries. For the pro forma impact of
becoming taxable as a "C" corporation on our results of operations for the year
ended
 
                                       25
<PAGE>   29
 
December 31, 1998 and the three months ended March 31, 1999, see our unaudited
pro forma financial statements included in this prospectus.
 
THREE MONTHS ENDED MARCH 31, 1999 AND 1998
 
       Our revenues from market-making activities increased 84.6% from $20.4
million in the first quarter of 1998 to $37.6 million in the first quarter of
1999. This increase was primarily due to favorable market conditions and an
increase in our worldwide market-making activities. Our revenues from foreign
market-making activities increased 286.9% from $7.9 million in 1998 to $30.6
million in 1999. Our results reflect overall strength in both Europe and Asia,
including new market-making operations we opened in 1998. Our revenues from U.S.
market-making activities decreased 43.8% from $12.5 million in 1998 to $7.0
million in 1999. This decrease reflects our increased focus on allocating
resources toward electronic markets, and away from open outcry markets, which
are primarily located in the United States. Our asset management revenues
decreased by 59.8% from $2.7 million in the first quarter of 1998 to $1.1
million in the first quarter of 1999. This decrease was due to lower incentive
fees due to below-average performance in our funds in the first quarter of 1999
versus above-average performance in the first quarter of 1998. Our funds are
market-neutral and we believe that market-neutral funds generally posted
below-average returns in the first quarter of 1999.
 
       Our interest and dividend income increased by 1.3% from $13.2 million in
the first quarter of 1998 to $13.3 million in the first quarter of 1999.
Additionally, our interest and dividend expense increased by 12.6% from $12.7
million in the first quarter of 1998 to $14.3 million in the first quarter of
1999. These increases resulted from larger securities inventories carried during
the first quarter of 1999.
 
       Our compensation expense increased by 39.3% from $5.5 million in the
first quarter of 1998 to $7.7 million in the first quarter of 1999. This
increase was primarily due to the increase in number of employees and increased
firm profitability. Our incentive-based compensation expense increased by 101.6%
due to the increase in our profitability.
 
       Our market-making related costs decreased 4.7% from $5.1 million in the
first quarter of 1998 to $4.9 million in the first quarter of 1999. Our other
operating expenses, which consist of professional fees, communications,
technology and occupancy expenses, remained constant between these quarters.
 
YEARS ENDED DECEMBER 31, 1998 AND 1997
 
       Our revenues from market-making activities decreased 12.2% from $109.6
million in 1997 to $96.2 million in 1998. This decrease was primarily due to
poor performance in our market-making activities in U.S. index products. The
decrease in our revenues from U.S. market-making activities more than offset an
increase in our revenues from foreign market-making activities. Our revenues
from foreign market-making activities increased $24.0 million or 71.0% from
$33.8 million in 1997 to $57.8 million in 1998. This increase resulted from our
ability to capitalize on the migration of foreign exchanges to electronic
platforms and is due to a combination of greater market share in existing
markets and expanded operations. In the fourth quarter of 1998, we expanded into
two new markets in Europe and made significant investments in our operation in
Hong Kong. We believe that the foreign electronic markets will continue to be a
key part of our growth strategy.
 
       The decrease in revenues from our market-making activities in U.S. index
products in 1998 resulted in part from the market events in the third and fourth
quarters. These events
 
                                       26
<PAGE>   30
 
caused a widespread decline in equity prices, increase in volatility and
reduction in liquidity in global equity markets. Declines in equity prices and
increases in volatility do not necessarily negatively affect our results.
However, the valuation models that we and other market participants use are
developed based, in part, on historical market relationships and those
relationships diverged significantly from historical patterns during that
period.
 
       Our asset management revenues decreased by 13.9% from $11.6 million in
1997 to $10.0 million in 1998. This decrease was due to lower performance-based
incentive fees as a result of the market dislocations described in the prior
paragraph. The decrease was partially offset by fees from Hull Quantitative
Fund, L.L.C. which we formed in July 1998.
 
       Our interest and dividend income decreased by 25.6% from $61.1 million in
1997 to $45.5 million in 1998. Additionally, our interest and dividend expense
decreased by 26.2% from $67.4 million in 1997 to $49.7 million in 1998. These
decreases resulted from lower securities inventories carried in 1998.
 
       Our compensation expense increased by 7.6% from $23.6 million in 1997 to
$25.4 million in 1998. This increase was primarily due to the increase in the
number of our employees. The number of our employees increased from 201 at
December 31, 1997 to 225 at December 31, 1998. The expense for base salaries
increased 25.4% from 1997 to 1998, due primarily to the increase in the number
of our employees. This increase was offset by a 17.0% decrease in our
incentive-based compensation expense due to the decrease in our profitability.
 
       Our market-making related costs increased 16.1% from $17.5 million in
1997 to $20.3 million in 1998. This increase was due to increased volumes,
particularly in our foreign operations where per transaction fees for trading
equity securities are higher. Our other operating expenses increased 11.6% from
$15.1 million in 1997 to $16.8 in 1998, due to increased communications and
technology expense and higher employment levels.
 
       Our pre-tax net income decreased by 32.5% from $60.1 million in 1997 to
$40.6 million in 1998. This decrease was primarily due to our decreased revenues
from market making and asset management and, to a lesser extent, to our
increased expenses.
 
YEARS ENDED DECEMBER 31, 1997 AND 1996
 
       Our revenues from market-making activities increased 81.4% from $60.4
million in 1996 to $109.6 million in 1997. This increase was primarily due to
favorable market conditions and increased industry volume and an increase in our
market share. Revenues from our foreign market-making activities increased
267.7% from $9.2 million in 1996 to $33.8 million in 1997. This increase
resulted from our greater market share in existing markets and entering into new
markets in Europe. Our revenues from U.S. market-making activities increased
47.9% from $51.2 million in 1996 to $75.8 million in 1997. Our asset management
revenues increased by 73.9% from $6.7 million in 1996 to $11.6 million in 1997.
This increase was due to an increase in assets under management and increased
performance-based incentive fees.
 
       Our interest and dividend income increased by 248.9% from $17.5 million
in 1996 to $61.1 million in 1997. Additionally, our interest and dividend
expense increased by 359.1% from $14.7 million in 1996 to $67.4 million in 1997.
These increases resulted from substantially larger securities inventories
carried in 1997.
 
       Our compensation expense increased by 37.0% from $17.2 million in 1996 to
$23.6 million in 1997. This increase was primarily due to an increase in the
number of our employees and our increased profitability. Our expense for base
salaries increased 23.9% from
 
                                       27
<PAGE>   31
 
1996 to 1997, due primarily to the increase in the number of our employees from
164 to 201. Our incentive-based compensation expense increased by 57.1% due to
the increase in our profitability.
 
       Our market-making related costs increased 99.2% from $8.8 million in 1996
to $17.5 million in 1997. This increase was due to increased volumes,
particularly in our foreign operations where transaction fees for trading equity
securities are higher. Our other operating expenses increased 45.1% from $10.4
million in 1996 to $15.1 million in 1997 primarily due to communications and
technology expense and related professional fees.
 
       Our pre-tax net income increased 76.4% from $34.0 million in 1996 to
$60.1 million in 1997. This increase was due to our increased revenues from
market making and asset management, which were partially offset by our increased
expenses.
 
LIQUIDITY AND CAPITAL RESOURCES
 
       Historically, we have financed our business primarily through cash
generated from operations, and through secured financing provided by various
well-capitalized international clearing brokers. We maintain a highly liquid
balance sheet that can fluctuate significantly between financial statement dates
and is primarily based on the level of our long and short positions. Our long
and short positions are marked to market daily. As of March 31, 1999, we had
$1.5 billion in assets, of which 98.2% consisted of cash.
 
       We clear substantially all of our exchange-traded securities through
clearing brokers. In addition to clearing and trade processing functions, the
clearing brokers provide us considerable securities and margin financing. Our
U.S. clearing and financing is provided primarily by Merrill Lynch Professional
Clearing and our foreign clearing and financing is provided primarily by the
Dutch bank Mees Pierson, NV. The amounts of financing extended are based on our
capital, the amount of margin we have on deposit and the overall risk of our
securities inventory. Generally, we pledge shares of stock and other assets to
our clearing brokers to secure this financing. Our clearing brokers are not
obligated to provide us financing.
 
       Our financing with Mees Pierson and its affiliates is governed by
separate contracts for each country. Generally, we may only use this financing
for short-term working capital requirements in relation to our dealings with
Mees Pierson. The rates and terms of payment may vary from agreement to
agreement, and under some of our agreements, Mees Pierson may vary the rates
they charge from time to time. Several of our agreements require monthly
payments of interest, while others require payment on demand. Mees Pierson may
demand repayment of all or any part of our credit facility at any time, and may
terminate our financing arrangement at any time, in some cases upon 30 days'
notice, and in other cases, immediately. We have also entered into secured stock
borrowing arrangements with Mees Pierson, for which we pay Mees Pierson at rates
based on the daily values of securities we borrow.
 
       We maintain investments in Hull Liquidity Fund, L.P., and Hull
Quantitative Fund, L.L.C. which provide for monthly redemptions but, because
those funds are broker-dealers, in some cases we will be prevented from making
cash distributions and redemptions from those funds. On March 31, 1999, our
investment in Hull Liquidity Fund was $11.7 million and our investment in Hull
Quantitative Fund was $3.3 million.
 
       We are currently in negotiations to establish revolving credit agreements
with various banks to provide short-term financing to address short-term
regulatory capital and cash needs within our regulated subsidiaries. We
currently have no long-term debt.
 
                                       28
<PAGE>   32
 
       Our capital expenditures were $5.1 million in 1998, $3.2 million in 1997
and $2.2 million in 1996, which represented 4.9%, 2.8% and 3.1% of our total net
revenues in those years. Our capital expenditures in 1998 were primarily related
to the purchase of technology and communications equipment, as well as leasehold
improvements and additional office facilities to support our growth. In 1998, we
completed the construction of a state-of-the-art computer facility in our
Chicago headquarters. Substantially all of our capital improvements were funded
without external financing. We plan to use the net proceeds from the offering,
in part, to invest in technology systems and personnel as described under "Use
of Proceeds."
 
       As a registered broker-dealer, Hull Trading Company, L.L.C., our U.S.
market-making subsidiary, must meet regulatory requirements intended to ensure
the general financial soundness and liquidity of a broker-dealer and requiring
the maintenance of minimum levels of net capital, as defined in SEC Rule 15c3-1.
These regulations also may prohibit a broker-dealer from repaying subordinated
borrowings, paying cash dividends, making loans to its parent, affiliates or
employees, or otherwise entering into transactions which would result in a
reduction of its total net capital to less than 120% of its required minimum
capital. At March 31, 1999, Hull Trading Company had net capital of $32.0
million, which was $31.7 million in excess of its required net capital of $0.3
million.
 
       Our foreign subsidiaries generally are regulated by the foreign
regulatory bodies in their countries. The rules of these regulators and foreign
tax laws may prevent us from receiving distributions, advances or repayment of
liabilities from these subsidiaries. Each of these subsidiaries must comply with
local minimum capital requirements. As of March 31, 1999, each subsidiary was in
compliance with its local capital adequacy requirement.
 
RISK MANAGEMENT
 
       We have a comprehensive risk management system to monitor, evaluate and
manage the aggregate risks inherent in our business, including our European and
Asian operations. This system balances our ability to profit from market making
with our exposure to potential losses. Our main exposure is equity price risk.
Equity price risk results from changes in prices and volatilities of individual
equity securities, equity baskets and equity indexes. We seek to manage this
risk exposure through diversifying exposures, controlling position sizes and
establishing hedges in related securities or derivatives. For example, we may
hedge a portfolio of common stock by taking an offsetting position in a related
equity index futures contract. Our ability to manage an exposure may, however,
be limited by adverse changes in the liquidity of the security or the related
hedge instrument and in the correlation of price movements between the security
and the related hedge instrument.
 
       Separation of duties and management oversight are fundamental elements of
our risk management process. Our risk management system includes active
participation at all levels of our firm, as follows:
 
       - Executive Committee -- has ultimate responsibility for our overall risk
         management policies;
 
       - Risk and Capital Oversight Committee -- evaluates and recommends
         trading and risk exposure limits to our executive committee and
         monitors adherence to these limits on a weekly basis;
 
       - Risk Department -- monitors our risk exposures on a daily basis; and
 
                                       29
<PAGE>   33
 
       - Trading Staff -- continuously monitors portfolio risk compliance within
         predetermined limits and executes trades using risk-adjusted values. We
         compensate each individual trader based on risk-adjusted returns. Thus,
         we provide our traders financial incentives to operate within these
         predetermined risk limits.
 
       In addition, we use a number of quantitative tools to manage our exposure
to market risk. These proprietary tools include:
 
       - Systems that immediately incorporate all new trades into our aggregate
         position information;
 
       - Pricing models that provide real-time information regarding our risk
         profile and hedge management capabilities;
 
       - Risk evaluation models that calculate our value-at-risk, or VaR, under
         a variety of different assumptions and approximations; and
 
       - Risk management systems that compare the VaR, under these differing
         scenarios, to predetermined risk limits for each profit center.
 
       We use VaR to measure the potential loss in value of our trading
positions due to adverse movements in markets over a defined time horizon within
a specified confidence level. We calculate VaR estimates under a variety of
market scenarios every day, some of which assume that:
 
       - Asset returns are not normally distributed,
 
       - Substantial shifts in volatility may occur, and
 
       - Substantially larger than normal price changes may occur.
 
       For the VaR numbers reported below, we used a one-day time horizon and a
99% confidence level. This means that there is a one in 100 chance that our
daily market-making net gains and losses will fall below the expected daily
market-making net gains and losses by an amount at least as large as the
reported VaR. Thus, we would expect shortfalls from expected market-making net
gains and losses on a single trading day greater than the reported VaR to occur,
on average, about five times within a two-year period. Shortfalls can accumulate
over a longer time horizon such as a number of consecutive trading days. For a
discussion of the limitations of our risk measures, see "Risk Factors -- Our
Market-Making Activities Expose Us to Unique Risks -- Our Hedges and Other Risk
Management Policies and Procedures May Not be Effective and May Leave Us Exposed
to Unidentified or Unexpected Risks."
 
       These VaR estimates cover positions in derivatives, underlying securities
and related hedges. Collectively these positions may include offsetting
positions in correlated securities. For example, the hedge of an index option
position may include an offsetting position in a basket of related equity
securities. Consequently, there is an underlying assumption that the degree of
correlation among these positions will remain within historical norms. We cannot
assure you that these relationships will remain within historical norms.
 
       The modeling of the risk characteristics of our trading positions
involves a number of assumptions and approximations. While we believe that these
assumptions and approximations are reasonable, there is no uniform industry
methodology for estimating VaR, and different assumptions or approximations
could produce substantially different VaR estimates.
 
                                       30
<PAGE>   34
 
       We use historical information to estimate our VaR. Given our reliance on
historical information, VaR is most effective in estimating risk exposures in
markets in which there are no sudden fundamental changes or shifts in market
conditions. An inherent limitation of VaR is that past changes in market risk
factors, even when weighted toward more recent observations, may not produce
accurate predictions of future market risk. For example, the changes in asset
volatilities to which we were exposed in the second half of 1998 were
substantially larger than those reflected in the historical information used
during that time period to estimate our VaR. Moreover, VaR calculated for a
one-day time horizon does not fully capture the market risk of positions that
cannot be liquidated or offset with hedges within one day.
 
       VaR also should be evaluated in light of the methodology's other
limitations. For example, when calculating the VaR numbers shown below, we
assumed that asset returns are normally distributed. Non-linear risk exposures
on options and the potentially mitigating impact of intra-day changes in related
hedges would likely produce non-normal asset returns. Different assumptions
about the underlying distributions of price movements could produce a materially
different VaR.
 
       The following table shows the VaR estimate for substantially all of our
market-making positions determined pursuant to the assumptions outlined above,
as of March 31, 1999:
 
<TABLE>
<CAPTION>
                                                         VAR ESTIMATE
                                                        (IN THOUSANDS)
<S>                                                     <C>
United States.........................................      $2,635
Europe................................................       1,351
Asia..................................................         125
                                                            ------
Firm-wide.............................................      $4,111
                                                            ======
</TABLE>
 
       We set targeted limits for the components of VaR and limits for the
maximum probable losses in a catastrophic scenario. When establishing
catastrophic limits, we take into account the amount of capital used as well as
expected profits. Managing these risks is an integral part of trading.
Risk-adjusted return on capital, or RAROC, which we use for profit center bonus
pool calculations, is a key measure in determining a trader's or portfolio
manager's compensation. We use VaR to calculate risk adjustments in determining
RAROC. Because we compensate each individual trader and portfolio manager based
on risk-adjusted returns, we give them a financial incentive to operate within
our predetermined risk limits.
 
                                       31
<PAGE>   35
 
       The following graph shows the frequency distribution of our daily
market-making gains and losses based on values derived from our proprietary
valuation models over the three-year period ended December 31, 1998. These gains
and losses may differ on a daily basis from gains and losses determined based on
the daily quoted closing prices.
 
                           DAILY NET GAINS AND LOSSES
                                  1996 - 1998
                              DAILY TRADING PROFIT
                 DAILY NET GAINS AND LOSSES (USD IN THOUSANDS)

                                  [BAR GRAPH]
 
FOREIGN OPERATIONS AND FOREIGN CURRENCY TRANSACTIONS
 
       We make markets on all major international electronic exchanges. Our
revenues from foreign market-making activities have grown, as a percent of our
total revenues, from 15.2% in 1996 to 60.1% in 1998. This trend is a result of
our ability to capitalize on the migration of foreign exchanges to electronic
platforms. The financial transactions of these operations are carried out in
foreign currencies. On March 31, 1999, 58.2% of our capital and 41.7% of our
total assets were denominated in foreign currencies, and exposed to the
fluctuations of foreign exchange rates. Our foreign currency exposure is
primarily in major currencies. It is our policy to hedge substantially all of
our net foreign currency exposure using futures and forward contracts.
 
                                       32
<PAGE>   36
 
EURO CONVERSION
 
       The European Monetary Union, commonly known as the EMU, replaced the
national currencies of 11 participating European Union countries with a single
European currency -- the euro. The euro was launched on January 1, 1999, when
the European Central Bank assumed control of monetary policy for the
participating nations. During the transition period until the national
currencies are withdrawn from circulation, these currencies will continue to
exist but only as fixed denominations of the euro.
 
       We implemented modifications to our trading and risk management systems
and programs to prepare for the transition to the euro. We tested the systems
and processes affected by the euro. We consider the initial redenomination
exercise to have been successful from the perspective of our internal systems
and books and records and we have not experienced any significant difficulties
relating to the euro.
 
YEAR 2000 READINESS DISCLOSURE
 
       We began to address the year 2000 computer problem in 1998. Our year 2000
effort has been conducted under the direction of a multi-disciplinary year 2000
committee and in accordance with a written year 2000 plan. Our year 2000 plan
addresses information technology, or IT, systems, non-IT systems and third-party
service providers, including clearing agents, information service providers and
Internet access providers.
 
       For IT and non-IT systems, our year 2000 plan includes six phases:
planning and awareness, inventory and assessment, remediation, validation and
testing, implementation and contingency planning. For our IT systems (including
our trading-related, communications and data processing systems), we have
completed the first three of these phases. We have substantially completed the
fourth phase, validation and testing, including successful completion of the
Securities Industry Association Industry-Wide Y2K Testing. However, we have not
completed point-to-point testing with some third-party service providers in
Europe, and due to scheduling difficulties do not expect to complete that
testing until September 1, 1999. We anticipate that we will substantially
complete the implementation phase for our IT systems by June 30, 1999. For our
non-IT systems, including fire and safety systems, heating and air conditioning
systems and security systems, we have completed all phases up through
implementation of year 2000 ready systems, except for an upgrade scheduled for
June 10, 1999.
 
       Our costs of remediation to date have been about $315,000 and we estimate
that the remaining costs of remediation will be about $165,000. Most of these
expenses have related to, and are expected to continue to relate to, the
operating costs associated with time spent by our employees and a systems
testing facility for year 2000 compliance. These estimates do not include the
costs of systems, software and equipment that we are obtaining, replacing or
upgrading in the normal course of business.
 
       We have sought to verify the year 2000 readiness of our third-party
service providers by reviewing year 2000 information on their World Wide Web
sites and by sending them requests for information. We have also participated in
industry testing, which allows us to validate the year 2000 readiness of some
service providers. With few exceptions, we are satisfied with the information
and responses we have received from our critical third-party service providers.
 
       We have, however, very little or no control over our service providers or
other third parties, and generally have little ability to verify their claims to
being year 2000 ready. As a result, we believe that our most reasonably likely
worst case scenarios involve areas where we
 
                                       33
<PAGE>   37
 
rely on third parties, including utility companies and securities exchanges that
are not ready to process transactions in the year 2000. If any of our
significant service providers or other third parties do not successfully and
timely become year 2000 ready, our business or operations could be adversely
affected.
 
       As a precautionary measure, we are developing contingency plans to
mitigate, to the extent possible, the effect of year 2000 problems on critical
processes. We expect to have a completed contingency plan in place by July 31,
1999. If we are required to implement our contingency plans, the cost of year
2000 compliance may be greater than the amount described above. We cannot assure
you that our contingency plans will be adequate.
 
RECENT ACCOUNTING DEVELOPMENTS
 
       In March 1998, the American Institute of Certified Public Accountants
issued Statement of Position 98-1, Accounting for the Costs of Computer Software
Developed or Obtained for Internal Use. This statement requires companies to
capitalize some costs of computer software developed or obtained for internal
use and amortize those costs over the useful life of the related software. This
statement is effective for financial statements for fiscal years beginning after
December 15, 1998. We currently expense our costs of computer software developed
or obtained for internal use and are evaluating the impact of adopting this
statement.
 
       In June 1998, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 133, Accounting for Derivative Instruments
and Hedging Activities, effective for fiscal years beginning after June 15,
1999. This statement establishes standards requiring that all derivative
financial instruments be recognized and measured at fair value regardless of the
purpose or intent for holding them. This statement also limits some of the
previously required quantitative disclosures relating to derivative financial
instruments held or issued for trading purposes. We do not expect our adoption
of this statement to have a significant impact on our consolidated financial
statements.
 
                                       34
<PAGE>   38
 
                                  OUR INDUSTRY
 
OVERVIEW
 
       We compete primarily in the global equities industry, which consists of
the equity derivatives market and the equity securities market. The global
equity derivatives market consists primarily of standardized exchange-listed
products traded on electronic and open-outcry exchanges worldwide. The market
also includes customized, over-the-counter products created by major financial
institutions for their customers. The global equity securities market consists
primarily of securities of corporate issuers that are traded on stock exchanges
or over-the-counter. The following table shows the equity market capitalization
and exchange-traded equity options volume in the United States, Europe and Asia
and the recent compound annual growth rate in those measures.
 
  GLOBAL EQUITY MARKET CAPITALIZATION & EXCHANGE-TRADED EQUITY OPTIONS VOLUME
 
<TABLE>
<CAPTION>
                                                                        EXCHANGE-TRADED
                         EQUITY MARKET CAPITALIZATION(a)           EQUITY OPTIONS VOLUME(b)
                       ------------------------------------    ---------------------------------
                       CAPITALIZATION ON    COMPOUND ANNUAL      1998 ANNUAL     COMPOUND ANNUAL
                       DECEMBER 31, 1998      GROWTH RATE      CONTRACT VOLUME     GROWTH RATE
                       (USD IN THOUSANDS)     (1996-1998)      (IN THOUSANDS)      (1996-1998)
<S>                    <C>                  <C>                <C>               <C>
United States........   $12,922,580,000          26.4%             447,576            21.4%
Europe...............     7,203,476,000          29.0%             269,174            31.1%
Asia.................     5,078,321,000          13.1%              40,636            16.2%
</TABLE>
 
- ------------------------------
 
(a) Source: Federation Internationale des Bourses de Valeurs
 
(b) Source: Futures Industry Association, Inc.
 
       The market participants in the derivatives market can be divided into two
types of parties: customers and dealers. Customers include financial
institutions, commercial firms, mutual and pension funds, private investment
companies and retail investors. Customers typically use derivatives to manage
financial risks. Dealers include market makers, large banks, securities firms
and other market professionals. Dealers generate revenue by meeting customer
demand to buy or sell derivatives, and also use derivatives to manage risk.
Dealers, unlike customers, may also make markets by standing ready to make a
two-way market in derivatives products. A market maker will typically hedge a
given trade by entering into an offsetting transaction with another customer or
dealer or by establishing a position in a highly correlated instrument. Market
makers, like our firm, provide trading liquidity on regulated exchanges and
generally have an obligation to make fair and orderly markets.
 
       Market makers typically offer to buy securities from, or sell securities
to, other dealers and customers. Firms that have elected to make a market in a
security may display the price at which they are willing to buy or sell those
securities. They will adjust their prices in response to the forces of supply
and demand for each security. A market maker typically acts as principal and
derives most of its revenues from the difference between the price paid when a
security is bought and the price received when that security is sold.
 
       In the equity derivatives market, brokerage firms typically execute their
orders by dealing with independent market makers. In the equity securities
markets, most discount and online brokers do not have internal market-making
functions and, as a result, rely entirely on independent market makers for trade
execution. In addition, traditional brokerage firms in the
 
                                       35
<PAGE>   39
 
equity securities markets are increasingly electing to focus on their core
competencies and to outsource their market-making functions to independent
market makers.
 
RECENT TREND TOWARD ELECTRONIC TRADING PLATFORMS
 
       There has been a worldwide trend toward the use of electronic trading
platforms that has transformed a number of key equity markets. Electronic
exchanges have emerged as a result of advances in technology, including
electronic order routing, trade matching, trade reporting and enhanced
availability of real-time price quotations. We believe the trend toward
electronic trading will ultimately result in fully electronic worldwide markets.
 
       In the United States, trading is conducted primarily on open outcry
exchanges, although electronic trading is becoming more common. A majority of
the equity derivatives and equity securities exchanges worldwide, including
those in France, Germany, Japan, Sweden and Switzerland, are now completely
electronic. For example, Eurex, a combination of the German Deutsche Terminborse
and the Swiss Options and Financial Futures Exchange, has a completely
electronic order matching system, and is now the largest derivatives exchange in
the world. In addition, the Tokyo Stock Exchange recently closed its trading
floor and now conducts stock trading entirely electronically. Also, the Sydney
Futures Exchange and the Australian Stock Exchange have announced their intent
to merge, close their open outcry floors and use fully electronic trading
systems. Several other exchanges, including exchanges in the United Kingdom,
have announced plans to convert to electronic trading platforms. Although the
large exchanges in the United States remain open outcry, even some of those
exchanges are adopting electronic trading mechanisms. For example, the "E-mini,"
an electronically traded futures contract on the S&P 500 Index, was recently
launched to trade on the Chicago Mercantile Exchange, commonly called the CME.
Since it began trading in September 1997, the fully electronic trading of the
E-mini has grown from 190,000 in monthly contract volume to 831,000 in April
1999. Additionally, the ISE, a new U.S.-based exchange formed by a consortium of
leading online brokers, has announced it will begin fully electronic equity
options trading in the first quarter of 2000. The following table summarizes the
current trading format of seven major equity derivatives exchanges and eight
major equity securities exchanges worldwide.
 
<TABLE>
<CAPTION>
                                                                              OPEN
                          EXCHANGE                            ELECTRONIC     OUTCRY
<S>                                                           <C>          <C>
EQUITY DERIVATIVES EXCHANGES:
  CME (United States).......................................                   X
  CBOE (United States)......................................                   X
  Eurex (Germany and Switzerland)...........................      X
  Osaka (Japan).............................................      X
  LIFFE (United Kingdom)(a).................................      X            X
  Marche des Options Negociables de Paris (France)..........      X
  Hong Kong Futures Exchange (China)(b).....................                   X
EQUITY SECURITY EXCHANGES:
  NYSE (United States)......................................                   X
  Nasdaq (United States)....................................      X
  Tokyo Stock Exchange (Japan)..............................      X
  London Stock Exchange (England)...........................      X            X
  Osaka Stock Exchange (Japan)..............................      X
  Frankfurt Stock Exchange (Germany)........................      X            X
  Paris Stock Exchange (France).............................      X
  Swiss Stock Exchange (Switzerland)........................      X
</TABLE>
 
- ---------------
 
(a) LIFFE has announced plans to convert to a fully electronic trading format in
    2000.
 
(b) The Hong Kong Futures Exchange has announced plans to convert to a fully
    electronic trading format in October 1999.
 
                                       36
<PAGE>   40
 
THE EQUITY DERIVATIVES INDUSTRY
 
       Derivatives are financial instruments that derive their value from
underlying assets, indices, reference rates or a combination of these variables.
Equity derivatives typically include options, futures, forwards, convertibles
and swaps. Equity derivatives provide dealers and customers the opportunity to
harness market volatility and manage risk. Market makers use derivatives to
facilitate customer transactions, to take proprietary positions and to manage
risk.
 
  U.S. EQUITY DERIVATIVES INDUSTRY
 
       Currently, equity derivatives in the United States are primarily listed
and traded on open outcry exchanges. These exchanges are both self-regulated and
regulated by the SEC and the CFTC. The U.S. OTC equity derivatives market is
substantially smaller by volume than the exchange market and is dominated by
major U.S. investment banks and other large financial institutions.
 
       Significant growth in the volume of equities traded from 1996 to 1998 has
had a positive impact on the U.S. equity derivatives markets. During this
period, the volume of exchange-traded equity derivatives increased as well.
Approximately 450 million options contracts were traded in 1998 on U.S.
exchanges. The compound annual growth rate in equity options contract volume on
U.S. exchanges from 1996 to 1998 was approximately 21.4%.
 
  INTERNATIONAL EQUITY DERIVATIVES INDUSTRY
 
       Equity derivatives in international markets are primarily listed and
traded on electronic exchanges. Today, equity derivatives are traded on more
than 30 exchanges in at least 18 countries around the world. Significant equity
derivatives markets exist in the United Kingdom, continental Europe and several
Asian countries. The European equity derivatives market is growing faster than
the U.S. market, with compound annual growth rates in equity options contract
volume from 1996 to 1998 of approximately 31.1% on European exchanges.
 
THE EQUITY SECURITIES INDUSTRY
 
       Equity securities are traded on more than 87 exchanges in at least 60
countries. During recent years, the volume of equity securities traded has grown
dramatically. We believe that the demand for equity securities will continue to
grow as the global economy expands.
 
  U.S. EQUITY SECURITIES INDUSTRY
 
       Equity securities in the United States are traded on both open-outcry
exchanges, including the NYSE, and electronic markets, including Nasdaq. Due to
favorable market conditions, companies have increasingly raised capital through
the U.S. equity securities markets. This has resulted in a significant increase
in the number of companies that are traded on exchanges or OTC.
 
       During recent years, the trading volumes in U.S. equity markets have
grown dramatically. The average daily volume of equity securities traded on
Nasdaq increased from 569.4 million shares in December 1996 to 867.1 million
shares in December 1998. The average daily volume of equity securities traded on
the NYSE increased from 433.1 million shares in December 1996
 
                                       37
<PAGE>   41
 
to 692.8 million shares in December 1998. The increase in trading volume has
resulted from a number of factors, including:
 
       - increased cash flows into equity-based mutual funds;
 
       - high returns in U.S. equity markets;
 
       - the emergence of the Internet and the rapid growth of online discount
         brokers; and
 
       - reduced transaction costs.
 
  INTERNATIONAL EQUITY SECURITIES INDUSTRY
 
       Equity securities in international markets are traded primarily on
electronic exchanges. The international equity securities markets have
experienced significant growth as local companies have increasingly used equity
capital as an alternative to debt financing. This growth is also the result of
increased participation in international equity securities markets by
individuals and institutions.
 
       During recent years, the trading volumes in international equity
securities markets have grown dramatically. The total annual turnover of
securities traded on the eight major European exchanges increased from $3.6
trillion in 1996 to $7.4 trillion in 1998, representing an increase of 105.6%.
 
                                       38
<PAGE>   42
 
                                  OUR BUSINESS
 
OVERVIEW
 
       We are a leading global market maker in exchange-traded equity
derivatives and an active market maker in equity securities worldwide. We
provide market-making and transaction execution services to a diverse group of
participants on 28 exchanges in nine countries. Our market-making activities
focus on providing customers with rapid executions at the best possible price.
Since 1985, we have been at the forefront in developing and applying financial
theory, along with information and communication technology, to trading equity
derivatives and equity securities. Our dedicated team of financial engineers,
software developers and traders develop proprietary, real-time valuation and
risk management systems to price and trade equity derivatives and equity
securities for our own account. The Hull System combines financial engineering,
trading and electronic systems to create a competitive advantage. We have
applied the Hull System to expand successfully, first into U.S. markets and then
into international electronic markets.
 
       Our lines of business are worldwide market-making activities and asset
management. We make markets in listed U.S. equity index derivatives and in
selected individual equity options in all major markets in the United States. We
also make markets in a variety of equity index options and individual equity
options in eight foreign countries, primarily on electronic exchanges located in
Europe and Asia. In addition to derivatives market making, we make markets in
individual equity securities on U.S. and foreign exchanges. Through Hull
Transaction Services, our market-making activities include executing and routing
orders forwarded to us by online brokers, large retail broker-dealers, money
center banks and hedge funds. We also provide asset management services to
outside investors by applying our expertise in valuation, electronic trading,
portfolio construction, technology and risk management.
 
       Our net revenues have increased from $51.7 million in 1994 to $103.1
million in 1998, representing a compound annual growth rate of 18.8%. Over this
period, electronic trading has become increasingly important to our business, as
net revenues from electronic trading have increased from 12.5% to 66.9% of our
net revenues. We have proven our ability to deliver profitable results over time
as demonstrated by our average annual pre-tax return on average equity over the
last ten years of 38.9% and over the last five years of 42.4%.
 
COMPETITIVE STRENGTHS
 
       We believe the Hull System has positioned us to compete effectively in
the global equities market, based on the following strengths:
 
       We Are a Globally Diversified Industry Leader.  We are a leading market
maker in both the United States and Europe. Starting from a single exchange in
1985, we have successfully expanded by applying our U.S. market-making
strategies to equity derivatives and equity securities markets worldwide. We
trade over 3,700 products on 28 exchanges in nine countries worldwide. Our
breadth of business activities across numerous geographic markets provides a
diverse revenue stream and valuable knowledge. In addition to the United States,
we are now a
 
                                       39
<PAGE>   43
 
leading market maker in equity derivatives and equity securities
internationally. In 1998, we generated 56.7% of our net revenues from our
activities in the following countries:
 
<TABLE>
      <S>                                     <C>
      - China (Hong Kong)                     - Norway
      - France                                - Sweden
      - Germany                               - Switzerland
      - Japan                                 - United Kingdom
</TABLE>
 
       We Develop and Use Sophisticated Technology.  We are recognized by major
exchanges as a pioneer in applying information and communication technology to
market-making activities worldwide, particularly on electronic exchanges. This
recognition provides opportunities for our technical experts to help develop the
hardware and software standards that guide the evolving use of computer systems
in the equity derivatives and equity securities markets. We are often approached
at an early stage by leading exchanges seeking to cooperate in the development
of pilot projects. Some of our significant technological accomplishments
include:
 
       - 1999 -- First remote access member of the Swiss Stock Exchange
 
       - 1998 -- First remote access member of the Paris Bourse from Germany
 
       - 1998 -- One of a select group of participants in beta testing for LIFFE
                 CONNECT(TM), the electronic trading system of the LIFFE
 
       - 1997 -- Only firm given responsibility by the CBOE for calculating the
                 publicly distributed index option quotes for the Dow Jones
                 Industrial Average, commonly called the DJIA
 
       - 1997 -- First to electronically quote markets on the "E-Mini" S&P 500
                 Index future on the CME, which is a miniature version of the
                 S&P 500 Index futures contract traded entirely through an
                 electronic system
 
       - 1994 -- First electronic connection to GLOBEX, the 24-hour per day
                 electronic trade matching system run by a joint venture among
                 the Chicago Mercantile Exchange, Reuters and the Marche a Terme
                 Internationale de France, commonly known as MATIF
 
       - 1992 -- Among the first to use wireless handheld computers for options
                 pricing on an exchange trading floor
 
       We believe our future growth and profitability will depend largely on our
continued investment in new technology systems and personnel. In order to
strengthen our position as a leader in applying technology to market-making
activities we will continue to invest significantly in state-of-the-art
financial engineering and information and communication technology.
 
       We Are an Innovator in Financial Engineering and Valuation.  Our
financial engineers, many with Ph.D.'s, create our proprietary valuation and
portfolio management models. These models allow us to better understand the
relationships between derivatives and securities. This understanding increases
the efficiency and effectiveness of our market-making activities. Our typical
financial engineer has a strong mathematical and technological background and
trading experience. Working directly with our traders, our financial engineers
are able to continuously refine our existing models and create new models. Each
financial engineer's compensation is
 
                                       40
<PAGE>   44
 
linked to a particular profit center's risk-adjusted profitability, reinforcing
the strong working relationship.
 
       We Have Strong Trading Capabilities.  We successfully combine our trading
expertise with state-of-the-art technology and quantitative models. We have a
trading staff of over 100 people, who implement our proprietary valuation
models. Our traders' compensation is based on risk-adjusted return on capital,
which creates a financial incentive for our traders to avoid making high-risk
trades.
 
       We Have Sophisticated Risk Management Systems.  Our risk management
systems are central to our success. Our market-making systems immediately
incorporate all new trades into each profit center's aggregate portfolio. Our
systems allow for real-time risk management and enable us to evaluate current
market exposure and make appropriate portfolio management decisions. These
decisions must adhere to risk limits that are set by our executive committee and
monitored by our risk and capital oversight committee both at the profit center
level and firm-wide.
 
OUR GROWTH STRATEGY
 
       We intend to enhance our position as a leader in the market-making
industry and grow by:
 
       Capitalizing on Growth in Electronic Trading.  We believe we are
well-positioned to capitalize on the growth in electronic trading. Through the
use of advanced information and communication technology, we are able to expand
our market-making activities into new electronic markets from an existing
trading center, thereby creating economies of scale and avoiding capital
expenditures. We intend to use our technology to expand our operations in
electronic exchanges, many of which are in foreign markets. We believe the U.S.
markets will become increasingly electronic, and we intend to apply our
expertise in electronic trading to benefit from this trend.
 
       Continuing to Expand Our Market-Making Activities.  We intend to use our
ability to successfully combine financial engineering, technology and risk
management to expand our market-making activities to include:
 
       - Additional equity-based products in our current geographic markets;
 
       - Equity-based products in new geographic markets; and
 
       - Non-equity based derivatives.
 
We have demonstrated our ability to adapt our business model to new markets and
products, and will continue to expand into new markets and products. For
example, we started on the CBOE, and later diversified into other U.S. exchanges
including the AMEX, the NYSE, the Pacific Stock Exchange and Nasdaq. We also
transported our expertise to equity index options and options on individual
equities in eight other countries.
 
       Developing Hull Transaction Services.  We intend to expand Hull
Transaction Services through investments in technology, further development of
models and marketing to become a significant provider of trade routing and order
execution services to capitalize on the growth in online trading. We currently
execute order flow in over 1,000 issues for our clients, and have agreed to
provide these services to several quantitative research institutions and other
institutional investors.
 
                                       41
<PAGE>   45
 
       Expanding Our Asset Management Business.  We intend to expand our asset
management business to become a significant provider of diversified,
risk-controlled products for institutional investors and high net worth
individuals. In addition, we are developing new trading strategies and new
funds, and intend to expand beyond our current three funds to respond to
customer needs.
 
       Attracting, Retaining and Developing Highly Skilled Employees.  We intend
to continue to aggressively recruit high caliber personnel and retain them
through equity-based incentives. The ultimate success of our financial
engineering, risk management and market-making functions depends on our ability
to continue to develop our professional employee base. As a result, we carefully
select, train and retain highly skilled personnel.
 
OUR LINES OF BUSINESS
 
       Our lines of business are worldwide market-making activities and asset
management. In addition, we have recently expanded our market-making activities
through the formation of Hull Transaction Services, which consists of executing
and routing orders forwarded to us by online brokers, large retail
broker-dealers, money center banks and hedge funds.
 
  WORLDWIDE MARKET-MAKING ACTIVITIES
 
       We make markets worldwide in equity index derivatives, individual equity
options and individual equity securities. Our market-making activities accounted
for 93.3% of our 1998 net revenues. The following table summarizes our major
market-making activities in 1998:
 
<TABLE>
<CAPTION>
                          INDUSTRY
                        EQUITY INDEX                       INDUSTRY                       HULL EQUITY
                           OPTION                      INDIVIDUAL EQUITY                  SECURITIES
                           VOLUME           HULL         OPTION VOLUME         HULL         VOLUME
                       (IN CONTRACTS)   MARKET SHARE    (IN CONTRACTS)     MARKET SHARE   (IN SHARES)
                                       (IN THOUSANDS, EXCEPT PERCENTAGE INFORMATION)
<S>                    <C>              <C>            <C>                 <C>            <C>
United States........      80,171            6.8%           325,780             0.9%       2,021,508
Europe...............      38,487           15.2%            81,548            16.8%         306,932
Asia.................       6,039            5.4%             2,083            10.7%         763,022
</TABLE>
 
       U.S.  In 1998, we traded about 28 million equity derivative contracts. We
believe we rank among the top three market makers in actively traded U.S. equity
index options, including the S&P 500, the Dow Jones Industrial Average and the
Russell 2000, where we have historically maintained a 6% to 8% market share. We
also make markets in select individual equity options, targeting highly
capitalized equities primarily in the high-tech sector. In addition to our
market making in equity derivatives, we make markets in individual equity
securities to capitalize on market opportunities as they arise. We are active in
both the index options and equity options markets, and we use similar valuation
models in both. We also actively trade the underlying stocks and index futures.
We gather and apply price, volatility and other relevant information between
markets on a real-time basis, which improves the efficiency of our market-making
activities. We believe our real-time price monitoring and trade execution system
allows us to effectively hedge our risk.
 
       In 1998, our automated equity trading system traded more than two billion
shares of stock, representing about 1.2% of the volume on the NYSE. This system
uses our proprietary valuation models to identify market mispricings and execute
trades that seek to profit from these short-lived mispricings.
 
                                       42
<PAGE>   46
 
       The following table lists the U.S. index options, individual equity
options and individual equity securities which typically are among the greatest
volume of our U.S. market-making activity:
 
<TABLE>
<CAPTION>
                                           INDIVIDUAL                         INDIVIDUAL
       INDEX OPTIONS                     EQUITY OPTIONS                   EQUITY SECURITIES
<S>                          <C>                                     <C>
          S&P 500                        Microsoft Corp.                   Microsoft Corp.
          S&P 100                      Cisco Systems, Inc.               General Electric Co.
            DJIA              International Business Machines Corp.     Wal-Mart Stores, Inc.
        Russell 2000                  Compaq Computer Corp.                  Intel Corp.
         Nasdaq 100                   General Electric Co.                   Exxon Corp.
</TABLE>
 
       Europe.  In Europe, we operate through two wholly owned subsidiaries,
Hull Trading, GmbH (Germany) and Hull Trading UK, Limited (England). Through
these subsidiaries, we are active market makers in the index options and all
constituent equity options on            European exchanges. We also actively
trade the underlying stocks and index futures. In Frankfurt, this includes a
Eurex membership where we serve as a market maker for both the German and Swiss
equity derivatives markets. We are also a direct member of the underlying stock
markets for Germany (Xetra) and for Switzerland (SWX). Also in Frankfurt, we are
a direct member of the SBF Paris Bourse, where we trade remotely. In London, we
are a member of the LIFFE and the London Stock Exchange, and make markets in the
Swedish (OMLX) and Norwegian equity derivatives markets. We have captured
significant market shares in index and individual equity options, including the
German DAX, the U.K. FT-SE, the Swiss SMI and the French CAC 40, that we trade
on 11 European exchanges. In some cases, these market shares are as high as 24%.
 
       We believe the evolution of the pan-European market resulting from the
EMU, will increase cross-border equity investment and trading activity. We
currently make markets in options on the STOXX 50 and the Euro STOXX 50
pan-European equity indexes. We intend to increase the number of products and
exchanges in which we make markets in Europe in order to realize the greater
economies of scale and additional arbitrage opportunities afforded by the EMU.
 
       The following table lists the European index options, individual equity
options and individual equity securities which typically are among the greatest
volume of our European market-making activity:
 
<TABLE>
<CAPTION>
                                                        INDIVIDUAL           INDIVIDUAL
                  INDEX OPTIONS                       EQUITY OPTIONS     EQUITY SECURITIES
<S>                                                <C>                  <C>
       German Deutscher Aktien Index (DAX)         Daimler Chrysler AG  Daimler Chrysler AG
U.K. Financial Times -- Stock Exchange 100 (FT-SE)     BP Amoco plc         BP Amoco plc
             Swiss Market Index (SMI)                  Nestle S.A.          Nestle S.A.
                   Swedish OMX                         Nokia Corp.          Nokia Corp.
  French Compagnie des Agents de Change 40 Index      France Telecom       France Telecom
                     (CAC 40)                         Deutsche Bank        Deutsche Bank
                  Euro STOXX 50
</TABLE>
 
       Asia.  In Asia, we operate through our wholly owned Hong Kong subsidiary,
Hull Trading Asia, Ltd., as well as through an alliance with Daiwa Securities SB
Capital Markets Co. Ltd., a strategic alliance between Daiwa Securities, the
second largest securities firm in Japan, and Sumitomo Bank, the second largest
bank in Japan. We are active market makers in Hang Seng index options, options
on the individual equities underlying the index and exchange-traded stock and
index warrants. We have benefited from the automation of the Hong Kong Stock
Exchange
 
                                       43
<PAGE>   47
 
and expect to realize further advantages when and if the Hong Kong stock index
options also become electronic.
 
       Our alliance with Daiwa Securities SB gives us access to the Japanese
equity derivatives markets. Under this arrangement, Daiwa Securities SB make
markets in Japanese equity index options and futures, individual equity options
and individual equities using our proprietary technology. We believe the
continued deregulation of the Japanese markets serves as an important growth
area for us in the near future.
 
       The following table lists the Asian index options, individual equity
options and individual equity securities which typically are among the greatest
volume of our Asian market-making activity:
 
<TABLE>
<CAPTION>
                                         INDIVIDUAL                     INDIVIDUAL
        INDEX OPTIONS                  EQUITY OPTIONS               EQUITY SECURITIES
<S>                            <C>                            <C>
          Nikkei 225                     Sony Corp.                     Sony Corp.
          Nikkei 300                   NTT Data Corp.                 NTT Data Corp.
         Hang Seng 33                  HSBC Holdings                  HSBC Holdings
   Tokyo Stock Price Index            Honda Motor Co.                Honda Motor Co.
        Hang Seng 100                  China Telecom                  China Telecom
</TABLE>
 
       Hull Transaction Services.  Hull Transaction Services, which Hull
Liquidity Fund, L.P. currently operates, provides customers with transaction
execution services by leveraging our existing technology and automated trading
systems. We intend to transfer this business to a new subsidiary of Hull. These
services include executing and routing orders forwarded to us by online brokers,
large retail broker-dealers, money center banks and hedge funds.
 
       Hull Transaction Services has applied its real-time trade execution
system and market-making capability to develop a system that allows
institutional investors to trade large amounts of equity securities on a single
day while being guaranteed the volume-weighted average price, or VWAP, for those
securities. VWAP is increasingly being used in our industry to measure the
quality of execution services being provided to customers. Therefore, by
guaranteeing VWAP, we add value for our customers by increasing their ability to
enter and exit the market with minimal market impact.
 
       Hull Transaction Services is exploring opportunities to obtain new
avenues for order flow for both equity derivatives and equity securities, which
could include payments for order flow. We are rapidly expanding this business
into other applications to which we can apply our technology. We will continue
to invest in technology, the development of proprietary models and marketing. We
currently execute order flow in over 1,000 issues for our clients. In addition,
we have agreed to provide execution services to several quantitative research
institutions and other institutional investors. Through our automated
technology, Hull Transaction Services provides customers with the following
benefits:
 
       - improved liquidity;
 
       - faster trade execution;
 
       - competitive spreads; and
 
       - lower transaction costs.
 
                                       44
<PAGE>   48
 
  ASSET MANAGEMENT BUSINESS
 
       In addition to our market-making activities, we also manage several
private investment funds. We established Hull Equity Management, L.L.C. as our
subsidiary to develop private investment funds using our core competencies
including financial engineering, model building, trading expertise and
electronic trade execution. Our objective is to expand our capacity to provide
diversified, risk-controlled products that are quantitatively driven. We provide
these alternative investment products for qualified eligible purchasers, which
include high net worth individuals, endowments and other institutional
investors. Our asset management business accounted for 9.7% of our 1998 net
revenues.
 
       Hull Equity Management manages the Hull Liquidity Fund, L.P. and two
relatively new funds, Hull Quantitative Fund, L.L.C. and Hull Quantitative
Offshore Fund, L.L.C. We have made investments in Hull Liquidity Fund and Hull
Quantitative Fund. Each quantitative fund holds its stock positions for an
average of 30 days, while the average turnover of the Hull Liquidity Fund is
approximately two days.
 
<TABLE>
<CAPTION>
                                                                                   HULL QUANTITATIVE
                              HULL LIQUIDITY FUND      HULL QUANTITATIVE FUND        OFFSHORE FUND
<S>                         <C>                       <C>                       <C>
Inception                         January 1994               July 1998                January 1999
Assets Under Management as
  of March 31, 1999              $61.6 million             $25.5 million             $28.1 million
Management Fee                        None             Based on assets under     Based on assets under
                                                             management                management
Incentive Fee                  Based on return in         Based on return           Based on return
                              excess of a minimum
                                   benchmark
Securities                          Equities                  Equities                  Equities
Investment Philosophy            Market-neutral            Market-neutral            Market-neutral
</TABLE>
 
       Hull Liquidity Fund.  To develop a trading strategy for this fund, we
used technology developed for our market-making business. This fund's system
collects real-time trading information electronically and uses it to generate
very short-term forecasts of a stock's theoretical value. Our system
automatically places an order to buy or sell when the current price and
theoretical value are out of line. This system allows this fund to trade the
highest capitalized securities in the marketplace, averaging over 20,000 trades
per day, and is fully automated. However, the program is continuously monitored
and traders can adjust the valuation parameters guiding these trades. This fund
is currently closed to new investors. We hold a 1.0% general partnership
interest and a 18.3% limited partnership interest in Hull Liquidity Fund.
 
       Our Quantitative Funds.  We believe our quantitative funds allow for much
greater assets under management than the Hull Liquidity Fund. These funds
execute trades entirely through an objective mathematical program, which reduces
trading costs and substantially removes human decision making from individual
equity trades. The major difference between the Hull Quantitative Fund and the
Hull Quantitative Offshore Fund is that the offshore fund serves non-U.S.
clients. We have a 13.1% membership interest in Hull Quantitative Fund.
 
OUR RISK MANAGEMENT SYSTEM
 
       We have a comprehensive risk management system to monitor, evaluate and
manage the aggregate risks inherent in our business, including our European and
Asian operations. This system balances our ability to profit from market making
with our exposure to potential losses. Our main exposure is equity price risk.
Equity price risk results from changes in prices and
 
                                       45
<PAGE>   49
 
volatilities of individual equity securities, equity baskets and equity indexes.
We seek to manage this risk exposure through diversifying exposures, controlling
position sizes and establishing hedges in related securities or derivatives. For
example, we may hedge a portfolio of common stock by taking an offsetting
position in a related equity index futures contract. Our ability to manage an
exposure may, however, be limited by adverse changes in the liquidity of the
security or the related hedge instrument and in the correlation of price
movements between the security and the related hedge instrument.
 
       We use a number of quantitative tools to manage our exposure to market
risk. These proprietary tools include:
 
       - Systems that immediately incorporate all new trades into our aggregate
         position information;
 
       - Pricing models that provide real-time information regarding our risk
         profile and hedge management capabilities;
 
       - Risk evaluation models that calculate our value-at-risk, or VaR, under
         a variety of different assumptions and approximations; and
 
       - Risk management systems that compare the VaR, under these differing
         scenarios, to predetermined risk limits for each profit center.
 
       We use VaR to measure the potential loss in value of our trading
positions due to adverse movements in markets over a defined time horizon within
a specified confidence level. We calculate VaR estimates under a variety of
market scenarios every day, some of which assume that:
 
       - Asset returns are not normally distributed,
 
       - Substantial shifts in volatility may occur, and
 
       - Substantially larger than normal price changes may occur.
 
       We set targeted limits for the components of VaR and limits for the
maximum probable losses in a catastrophic scenario. When establishing
catastrophic limits, we take into account the amount of capital used as well as
expected profits. Managing these risks is an integral part of trading. RAROC,
which we use for profit center bonus pool calculations, is a key measure in
determining a trader's or portfolio manager's compensation. We use VaR to
calculate risk adjustments in determining RAROC. Because we compensate each
individual trader and portfolio manager based on risk-adjusted returns, we give
them a financial incentive to operate within our predetermined risk limits.
 
                                       46
<PAGE>   50
 
       Separation of duties and management oversight are fundamental elements of
our risk management process. Our risk management system includes active
participation at all levels of the firm, from our executive committee to our
trading staff, as the following chart shows:
 
                                RESPONSIBILITIES
                       
[This chart shows the groups at our firm that are part of our risk management
system, and describes each group's responsibilities, as further described in the
following text.]
 
       Executive Committee.  Our executive committee has ultimate responsibility
for our overall risk management policies. This committee establishes all risk
limits and reviews each profit center's performance. This committee evaluates
the risks and opportunities presented by proposed profit centers.
 
       Risk and Capital Oversight Committee.  Our risk and capital oversight
committee evaluates and recommends trading and risk exposure limits to our
executive committee. This committee monitors adherence to these limits on a
weekly basis and provides general oversight of the risk management system. In
addition, this committee reviews potential exposures based on "what if"
scenarios. Our risk and capital oversight committee reports all violations of
risk limits to our executive committee.
 
       Risk Department.  Our Risk Department monitors our risk exposures on a
daily basis and immediately reports all violations of risk limits to our risk
and capital oversight committee. The risk department has the authority to
implement risk-reducing trades in any profit center worldwide in order to
achieve firm-wide compliance with risk limits.
 
                                       47
<PAGE>   51
 
       Trading Staff.  At the profit center level, our portfolio managers are
responsible for continuously monitoring portfolio risk compliance within
predetermined limits set by our executive committee. In the case of a violation,
the portfolio manager is responsible for taking action to reduce risk exposure
in an amount sufficient to bring that profit center into compliance with
approved limits. Each portfolio manager has in-depth knowledge of the primary
sources of risk in his individual market and the instruments available to hedge
the profit center's exposures. Our trading staff continuously manages risk using
risk-adjusted values calculated in real-time by our automated proprietary
trading and risk management technology. Because we compensate each individual
trader and portfolio manager based on risk-adjusted returns, we give them a
financial incentive to operate within our predetermined risk limits.
 
OUR EMPLOYEES
 
       As of March 31, 1999, we had 225 employees, of which 103 were in trading,
59 were in systems, 16 were in financial engineering, nine were in management
and 38 were in administrative or support functions. We have not entered into
employment agreements with any of our employees or any of our executive
officers. We have entered into a confidentiality and a non-competition agreement
with each of our principals. If any of our principals leave our firm for any
reason, they may not trade or make markets, except for their own account, in any
derivative or security in which we trade or make markets on specified major
exchanges for one year after their departure. In addition, they may not
encourage any of our employees to leave our firm for two years after their
departure. Our principals have also agreed not to use any of our confidential
information for reasons unrelated to our business. None of our employees are
parties to a collective bargaining agreement. We believe that our relations with
our employees are excellent.
 
CLEARING ARRANGEMENTS
 
       We have clearing contracts with Merrill Lynch Professional Clearing Corp.
relating to our U.S. market-making activities. Our contract with Merrill Lynch
will remain in effect until terminated by either party. Our European and Asian
companies clear their trades through Mees Pierson and several of its affiliates,
and the contracts remain in effect until terminated by either party with the
amount of notice specified in the contract. In our clearing arrangements, we
earn interest income on balances due from our clearing brokers. We also incur
interest expense on any balances due to these clearing brokers. Through stock
borrowing agreements and credit facilities, we also borrow funds from our
clearing brokers and secure these borrowings with pledges of stock. Under these
credit facilities, our clearing brokers generally may terminate our financing at
any time.
 
OUR PRIMARY COMPETITION
 
       The market for the services we provide is rapidly evolving and intensely
competitive. We expect competition to continue and intensify in the future. We
face competition from many firms varying in size and strategy. In the United
States, numerous small to mid-size firms compete with us on the exchange floors.
These firms typically have $1 million to $50 million in capital. We also compete
with independent traders. Worldwide, large financial institutions represent a
significant group of our competitors. Leading financial institutions have shown
significant interest in penetrating the equity derivatives markets recently,
including acquiring some of our competitors. In addition, our current and
potential competitors have established or may establish other cooperative
relationships or may consolidate to enhance their services and products. New
 
                                       48
<PAGE>   52
 
competitors or alliances among competitors may emerge and they may acquire
significant market share.
 
       In our market-making activities, we compete based on price, as reflected
in our bid-ask spreads. We also compete based on the speed at which our systems
react to real-time changes in the marketplace. Finally, we compete based on the
number of contracts we are willing to execute at a given price. In our execution
services business, we compete based on speed of execution and bid and ask
prices. In our asset management business, we compete primarily based on our
funds' risk-adjusted returns.
 
GOVERNMENT REGULATION
 
       Extensive regulation in the United States and elsewhere generally governs
our business and our industry. In addition to the SEC, the NASD, other SROs,
including the various stock exchanges, and other regulatory bodies worldwide
require strict compliance with their rules and regulations. As a matter of
public policy, regulatory bodies in the United States and the rest of the world
are charged with safeguarding the integrity of the securities and other
financial markets and with protecting the interest of customers participating in
those markets, not with protecting the interests of creditors or stockholders of
market makers. In the United States, the SEC is the federal agency responsible
for the administration of the federal securities laws. Hull Trading Company,
L.L.C. is registered as a broker-dealer with the SEC and is a member of the
CBOE, which serves as its designated examining authority. Hull Liquidity Fund,
L.P. is also a registered broker-dealer with the SEC and is a member of the
NASD. Hull Quantitative Fund L.L.C., is also registered as a broker-dealer with
the SEC and is a member of the Chicago Stock Exchange. SROs, including the CBOE,
and state securities and other regulatory authorities have oversight authority
over us. Similarly, our businesses are also subject to regulation by various
non-U.S. governmental and regulatory bodies and SROs in virtually all countries
where we do business.
 
       Broker-dealers are subject to laws, rules and regulations that cover all
aspects of the securities business, including:
 
       - sales methods,
 
       - trade practices,
 
       - use and safekeeping of customers' funds and securities,
 
       - capital structure,
 
       - record-keeping,
 
       - financing of customers' purchases and
 
       - conduct of directors, officers and employees.
 
       Failure to comply with any of these laws, rules or regulations could lead
to adverse consequences including censure, fine, the issuance of
cease-and-desist orders or the suspension or disqualification of its directors,
officers or employees. Any of these adverse consequences could affect our
business. We and some of our officers and other employees have in the past, been
subject to claims arising from the violation of these rules and regulations
which resulted in the payment of fines and settlements. We and our officers and
other employees may be subject to future claims arising from the violation of
these laws, rules and regulations. An adverse ruling against us or our
employees, including censure or suspension, could cause our company or our
 
                                       49
<PAGE>   53
 
officers and other employees to pay a substantial fine or settlement, and could
result in their suspension or expulsion. Any of these events could have a
material adverse effect on our business.
 
       The commodity futures and options industry in the United States is
subject to regulation under the Commodity Exchange Act. The CFTC is the federal
agency charged with the administration of this act and the related regulations.
Hull Equity Management is registered with the CFTC as a commodity pool operator
and is a member of the NFA. We act as a market maker on various options
exchanges in the United States. In addition, we have received the following
appointments on some of these exchanges:
 
     - We have been appointed as a specialist at the American Stock Exchange in
       three classes of options, the Amex Institutional Index, the Major Market
       Index and the S&P Midcap 400 Index.
 
     - We have been appointed as a designated primary market maker, or DPM, in
       five option classes at the CBOE. These classes of options are the Russell
       2000 Index, the S&P Small Cap Index, the NYSE Composite Index, the S&P
       500/BARRA Growth Index and the S&P 500/BARRA Value Index.
 
     - We have been appointed as a lead market maker at the Pacific Exchange in
       the Wilshire SmallCap Index Options.
 
       The benefits and obligations arising from the appointments noted above
vary from exchange to exchange. In general, these appointments require us to
continuously maintain a two-sided market in our appointed options at prices that
assist in maintaining the supply and demand for such options at levels which are
sufficient to provide liquidity to buyers and sellers on the exchange floor. For
example, under CBOE rules, a DPM must:
 
       (1) assure that market quotations are accurate;
 
       (2) assure that these market quotations are firm for the number of
           contracts designated by CBOE;
 
       (3) determine formulas for generating automatically updated market
           quotations;
 
       (4) be present at the trading post on every business day and effect
           trades which have a high degree of correlation with the overall
           pattern of trading;
 
       (5) participate at all times in any automated execution system which may
           be open in its appointed options classes; and
 
       (6) resolve trading disputes upon the request of any party to the
dispute.
 
       In addition, CBOE rules provide that a DPM may participate pro rata with
the trading crowd in trades that take place at its principal bid or offer.
 
       As a registered broker-dealer, we are subject to the SEC's Net Capital
Rule. The Net Capital Rule, which specifies minimum net capital requirements for
registered brokers-dealers, is designed to measure the general financial
integrity and liquidity of a broker-dealer. The Net Capital Rule requires that
at least a minimum part of a registered broker-dealer's assets be kept in
relatively liquid form. In general, net capital is defined as net worth, meaning
assets minus liabilities, plus qualifying subordinated borrowings and
discretionary liabilities, and less mandatory deductions that result from
excluding assets that are not readily convertible into cash
 
                                       50
<PAGE>   54
 
and from valuing conservatively other assets. Among these deductions are
adjustments, which are commonly called haircuts, which reflect the possibility
of a decline in the market value of an asset prior to disposition.
 
       If a firm fails to maintain the required net capital, the SEC and the
SROs or other regulatory bodies may suspend the firm or revoke its registration
and ultimately could require the firm's liquidation. The Net Capital Rule
prohibits the payment of dividends, the redemption of stock, the prepayment of
subordinated indebtedness and the making of any unsecured advance or loan to a
stockholder, employee or affiliate, if the payment would reduce the firm's net
capital below required levels.
 
       The Net Capital Rule also provides that the SEC may restrict for up to 20
business days any withdrawal of equity capital, or unsecured loans or advances
to stockholders, employees or affiliates, commonly called capital withdrawal, if
the capital withdrawal, together with all other net capital withdrawals during a
30-day period, exceeds 30% of excess net capital and the SEC concludes that the
capital withdrawal may be detrimental to the financial integrity of the broker-
dealer. In addition, the Net Capital Rule provides that the total outstanding
principal amount of a broker-dealer's indebtedness under subordination
agreements, the proceeds of which are included in its net capital, may not
exceed 70% of the sum of the outstanding principal amount of all subordinated
indebtedness included in net capital, par or stated value of capital stock, paid
in capital in excess of par, retained earnings and other capital accounts for a
period in excess of 90 days.
 
       A change in the Net Capital Rule, the imposition of new rules or any
unusually large charges against net capital could limit those of our operations
that require the intensive use of capital and also could restrict our ability to
withdraw capital. This in turn could limit our ability to pay dividends, repay
debt and repurchase shares of our outstanding stock. A significant operating
loss or any unusually large charge against net capital could adversely affect
our ability to expand or even maintain our present levels of business, which
could have a material adverse effect on our business.
 
       Hull Liquidity Fund L.P. recently received a written inquiry from the
NASD regarding alleged violations of the NASD rules relating to trade reporting.
We believe we have meritorious defenses to the alleged violations and are in the
process of preparing our response. Even if the NASD were to determine that these
defenses were insufficient, we do not believe that the likely fines or
non-monetary penalties would have a material adverse effect on our business.
 
       We are active in the international equity derivatives and equity
securities markets. Many of our affiliates which participate in those markets
are subject to comprehensive regulations, including some form of capital
adequacy rules and other customer protection rules. At present, our London
operations are regulated by The Securities and Futures Authority Limited. We
expect, however, that upon the enactment of some changes in laws, which are
currently being considered by Parliament, in 2000 the Financial Services
Authority will take over the responsibilities of The Securities and Futures
Authority Limited. In addition, our subsidiary Hull Trading UK Limited is a
member of the London Stock Exchange and LIFFE and is subject to the rules and
regulations of those exchanges.
 
       We are subject to oversight by U.K. regulators following European Union
directives and the related legislation, rules and regulations. Among other
things, these directives require compliance with capital adequacy standards,
customer protection requirements and conduct of business rules. These standards,
requirements and rules are similar throughout the European Union and are
comparable in scope and purpose to those requirements imposed under SEC
                                       51
<PAGE>   55
 
rules. European Union directives also permit more restrictive local regulation
in each jurisdiction, including those in which we operate. These local
requirements can result in competitive disadvantages to us. In addition, other
foreign government agencies regulate some of our subsidiaries and also have
capital standards and other requirements comparable to the rules of the SEC.
Compliance with regulatory capital requirements of these and other regulators
could limit those operations of our subsidiaries that require the intensive use
of capital. Compliance with these requirements, also could restrict our ability
to withdraw capital from our regulated subsidiaries, which in turn could limit
our ability to repay debt or pay dividends on the common stock.
 
       In Germany, our subsidiary, Hull Trading GmbH, is regulated by German
regulatory agencies under European Union directives. Currently, our
market-making activities conducted through our Frankfurt office are supervised
by the Frankfurt Stock Exchange and by Eurex, by their Common Stock Exchange
Supervision Authority and, to some extent, by the Federal Securities Supervision
Authority. If our regulatory status in Germany changes or if we become subject
to regulation by other authorities in Germany, we may have increased net capital
requirements and additional administrative compliance obligations, which could
impact our business.
 
       Hull Trading GmbH, obtained the necessary Swiss license from the Swiss
Banking Commission for its activities in Switzerland as a foreign securities
dealer and remote member of the Swiss Stock Exchange and Eurex. As a result, we
are now regulated by the Swiss Banking Commission and must comply with various
record-keeping and reporting requirements under the Swiss Stock Exchange Act. In
addition, Hull Trading GmbH, as a member of the Swiss Stock Exchange, must
comply with its net capital requirements.
 
OUR PROPERTIES
 
       We currently have offices in Chicago, New York, Frankfurt, Hong Kong and
London. We lease all of our office space.
 
LEGAL ISSUES
 
       We are operating in compliance in all material respects with our legal
and regulatory requirements, domestic and international. We are not currently a
party to any material litigation.
 
                                       52
<PAGE>   56
 
                                 OUR MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
       The following table describes our executive officers and directors.
 
<TABLE>
<CAPTION>
NAME                                   AGE                          POSITION
<S>                                    <C>   <C>
M. Blair Hull........................  56    Chairman and Chief Executive Officer; Director
Arthur S. Margulis, Jr. .............  36    President; Director
Peter J. Layton......................  39    Executive Vice President; Director
Daniel G. Brennan....................  35    Executive Vice President
William J. "Liam" Connell............  39    Executive Vice President and Chief Information Officer
John C. Hiatt........................  51    Executive Vice President and Chief Administrative
                                             Officer
Timothy J. Hunter....................  42    Executive Vice President and Chief Financial Officer
Alger B. "Duke" Chapman..............  67    Director
Frederick Grauer.....................  53    Director
Craig Heimark........................  44    Director
Wilmot J. Nicholson..................  84    Director
</TABLE>
 
       M. Blair Hull  founded our firm in 1985 and since then has served as
Chairman and Chief Executive Officer and a Director (or similar capacities) of
our company and its predecessor organizations. Mr. Hull served on the Board of
Directors of the Chicago Board Options Exchange from 1988 to 1990 and on the
Board of Directors of the Options Clearing Corporation from 1992 to 1998. He is
currently a member of the Board of Trustees of the Cincinnati Stock Exchange and
the Board of Directors of BARRA, Inc. Presently, Mr. Hull is a member of the
Board of Trustees of the University of California Santa Barbara Foundation and
serves on the Investment Committee of Santa Clara University. He holds a B.A. in
Mathematics from the University of California Santa Barbara (1965), M.B.A. from
Santa Clara University (1969) and graduated from the Harvard OPM Program in
1990.
 
       Arthur S. Margulis, Jr.  is our President and a Director. Since joining
us in 1986, he has played a variety of roles in the firm, including managing
several market-making operations and serving as chairman of our executive
committee. Mr. Margulis is a member of the Chicago Mercantile Exchange and has
served on various committees of the Chicago Mercantile Exchange and the Chicago
Board Options Exchange. He received his M.B.A. in Finance from the University of
Chicago (1990) and his B.A. in Economics from Princeton University (1985).
 
       Peter J. Layton  is an Executive Vice President and a Director. Mr.
Layton joined our firm in 1988, and for the last five years, he has been
directly responsible for our equity stock trading operations. Mr. Layton is a
member of the Chicago Board Options Exchange, the Kansas City Board of Trade,
and the Chicago Stock Exchange and has been a member of the London Stock
Exchange and the Philadelphia Stock Exchange. Mr. Layton serves on various
industry and exchange committees. From 1985 to 1988 Mr. Layton worked at the
CBOE where he held positions as Director of Research. He received his M.B.A. in
Finance and Statistics from the University of Chicago (1987) and his B.A. in
Economics from the University of Chicago (1982).
 
       Daniel G. Brennan  is an Executive Vice President. Mr. Brennan joined our
firm in 1988. Since 1995, Mr. Brennan has co-managed our worldwide derivatives
trading, and is directly responsible for European Trading Operation in Frankfurt
and London. Mr. Brennan is a member of the Chicago Board Options Exchange. He
received his M.B.A. in Finance from the University of Chicago (1992) and his
B.S. in Finance and Marketing from Marquette University (1986).
 
                                       53
<PAGE>   57
 
       William J. "Liam" Connell  is an Executive Vice President and our Chief
Information Officer. Prior to joining our company in 1998, he worked at Salomon
Brothers for ten years, most recently as a director responsible for capital
markets, electronic commerce and risk management systems development. Prior to
that, he worked at IBM Ireland and National City Brokers, a brokerage firm based
in Dublin, Ireland, as a software developer. Mr. Connell received his B.A. in
Mathematics and Philosophy (1982), and his Master of Management Science (1983)
from University College, Dublin.
 
       John C. Hiatt  joined the firm as an Executive Vice President and our
Chief Administrative Officer in April 1999. From January 1998 until April 1999,
he was Vice President Clearing & Regulatory Affairs for The Timber Hill Group
LLC, a global market maker firm in Greenwich, Connecticut. From January 1994
through January 1998, he was the President and Chief Executive Officer of the
Board of Trade Clearing Corporation in Chicago. From 1992 to 1994, Mr. Hiatt
served as Executive Vice President, Treasurer and Chief Financial Officer of The
Options Clearing Corporation with responsibility for the overall direction and
administration of clearing operations, treasury operations, new products,
systems assurance testing, risk management and economic research. Prior to that
time he served respectively as Sr. V.P. -- Operations & Risk Management, V.P.
Regulation. He joined the Options Clearing Corporation in 1975 as Controller.
Mr. Hiatt, a U.S. Navy veteran, received a B.S. in Accounting (1974) and M.B.A.
in Finance and International Business (1980) from DePaul University. He also is
a Certified Public Accountant. Mr. Hiatt has served on the Illinois Society of
Certified Public Accountants' Committee on Broker-Dealers; the Clearing
Procedures Committee of the Chicago Board Options Exchange and he is currently a
member of the Business Conduct Committee. Finally, he also served on the faculty
of the Stuart School of Business at the Illinois Institute of Technology where
he taught a course on Options Price Theory.
 
       Timothy J. Hunter  is an Executive Vice President and our Chief Financial
Officer. Since joining our company in 1993, Mr. Hunter has been directly
responsible for our finances and overseas clearing, processing and profitability
analysis. From 1983 to 1993, he was Chief Financial Officer of Lind-Waldock and
Company, a futures brokerage firm located in Chicago, and from 1979 to 1982 he
was with Arthur Andersen and Company in their Banking and Financial Services
Audit Division. Mr. Hunter is a Certified Public Accountant and is a candidate
for an M.A. in Economics from the University of Illinois at Chicago and received
his B.A. in Business and International Studies from Iowa State University
(1979).
 
       Alger B. "Duke" Chapman,  a Director, has been a Vice Chairman of ABN
AMRO Incorporated since 1997. From 1986 to 1997, Mr. Chapman served as Chairman
and Chief Executive Officer of the Chicago Board Options Exchange. Prior to
joining the CBOE, Mr. Chapman was Vice Chairman of American Express Bank Ltd.
and was responsible for building a private banking business. Mr. Chapman serves
on the Boards of Directors of Parson Group L.L.C., a financial, accounting and
risk management (insurance) consulting and staffing company in Chicago; HDO,
Inc., one of the largest tent and structure companies in the United States; ABN
AMRO Sage, a wholly-owned subsidiary of ABN AMRO Incorporated and one of the
largest options market maker clearing organizations in the country; Arlington
Capital Management, Ltd.; Prime Holdings, Inc., an insurance company
specializing in substandard risk; ISO New England, an independent system that
operates the wholesale electric power transmission system for the New England
states and creates competitive markets for wholesale electricity products in New
England; and the Futures Industry Institute. He is the past President of the
International Options Markets Association and a former executive committee
member and Chairman of the Ad Hoc Committee on Derivatives of the International
Federation of Stock
 
                                       54
<PAGE>   58
 
Exchanges. Mr. Chapman received his bachelor's degree from Williams College
(1953) and his law degree from Columbia University School of Law (1956).
 
       Frederick Grauer,  a Director, is a founder and director of eRugGallery,
an e-commerce company located in Menlo Park, California, a trustee of the Menlo
School, an independent school located in Atherton, California and an advisor to
the Stanford Institute of Economic Policy Research located at Stanford
University Stanford, California. From 1996 to 1998, Dr. Grauer was executive
Chairman and then Co-Chair of Barclays Global Investors, one of the largest
institutional money managers in the world. In this capacity, he was responsible
for the global business strategy of BGI, oversight of its businesses in Europe,
Japan and capital markets and supervision of its advanced active investing,
indexing, global risk management, finance, planning and technology functions.
From 1983 to 1995, Dr. Grauer held various positions with the predecessors of
BGI including Chairman and Chief Executive Officer of Wells Fargo Nikko
Investment Advisors and Wells Fargo Investment Advisors and their affiliates. He
was also an Executive Vice President of Wells Fargo Bank. Dr. Grauer holds a
Ph.D. in Business from Stanford University (1977), a M.A. in Economics from the
University of Chicago (1972) and a B.A. in Economics from the University of
British Columbia (1969).
 
       Craig Heimark,  a Director, is an independent advisor to Silicon Valley
start-up ventures in the area of technology planning, financial and growth
strategies. Before becoming a venture capital advisor, Mr. Heimark worked at SBC
Warburg where he served as Head of Strategic Planning and Business Development
from 1996 to 1997 and Head of the Systems for Capital Markets Division,
International Finance Division from 1993 to 1996. From 1986 to 1993, Mr. Heimark
was a General Partner of O'Connor and Associates, a partnership located in
Chicago and engaged in proprietary options trading, where he was Head of
Currency Options Business Unit (1984-1990), Head of Systems/Technology
Department (1987-1993) and Head of Systems of Swiss Bank and O'Connor and
Associates Joint Venture (1990-1993). Mr. Heimark has a B.A. in Economics and a
B.S. in Biology from Brown University (1977).
 
       Wilmot J. Nicholson,  a Director, founded W.J. Nicholson Company, General
Contractors, a consulting and management firm located in Santa Clara, California
and has managed that firm for the last five years. Mr. Nicholson is the former
mayor of Santa Clara. He was affiliated with the School of Engineering at Santa
Clara University, both as an instructor and as Chairman of the Civil Engineering
Department and was a member of the Board of Regents of the University of Santa
Clara and the Dean's Advisory Committee to the School of Engineering. Since
1997, Mr. Nicholson has been the managing partner of Aturos Ranches, a
29,000-acre farming operation in Northern California. Mr. Nicholson has a
Bachelor of Civil Engineering from the University of Santa Clara (1936).
 
BOARD COMMITTEES
 
       We plan to establish an audit committee and a compensation committee. The
audit committee will review our internal accounting procedures and consider and
report to our Board on other auditing and accounting matters, including the
selection of our independent auditors, the scope of annual audits, fees to be
paid to our independent auditors and the performance of our independent
auditors. The audit committee will be composed solely of directors who are not
our employees or affiliated with our management. The compensation committee will
review and recommend to our Board the salaries, benefits and stock option grants
of all employees, consultants, directors and other individuals we compensate.
The compensation committee will also administer our stock option and other
employee benefits plans. Our Board may from time to time establish other
committees.
                                       55
<PAGE>   59
 
COMPENSATION OF DIRECTORS
 
       Directors who are our employees receive no additional compensation for
their services as directors. We will pay directors who are not our employees an
annual retainer of $20,000 and we will reimburse all directors for reasonable
expenses they incur while attending Board and committee meetings. We will not
compensate any director for his services as a director if he is also an officer
or employee. On              , 1999, our Board adopted an Outside Directors
Stock Option Plan. Our stockholders approved this plan on              , 1999.
Under this plan, each director who is not our employee will receive an option to
purchase 10,000 shares of our common stock when the director is first elected or
appointed to the Board. Every year, each director who is not our employee will
receive an option to purchase 2,000 shares of our common stock after the annual
stockholders' meeting. All options granted under this plan will become
exercisable six months after the date they are granted and will expire either
ten years after the date they were granted or at the end of the director's term,
whichever occurs first. The directors who are eligible for grants under this
plan may not participate in any of our other stock option plans or benefit
plans.
 
EXECUTIVE COMPENSATION
 
       Prior to the offering, we carried on our business as a limited liability
company. As a result, meaningful individual compensation information for
directors and executive officers based on operating as a corporation is not
available for periods prior to the offering.
 
       The following table summarizes compensation paid by us for services
rendered during 1998 to our Chief Executive Officer and to each of the four
other most highly compensated executive officers, whom we refer to as the named
executive officers, based on salary and bonuses earned during 1998. The amounts
in the table include only compensation for 1998 and do not include distributions
paid to those persons as limited liability company members during 1998.
 
<TABLE>
<CAPTION>
                                                                  ANNUAL COMPENSATION
                                                         -------------------------------------
                                                                                  ALL OTHER
NAME AND PRINCIPAL POSITION                               SALARY    BONUS(A)   COMPENSATION(B)
<S>                                                      <C>        <C>        <C>
M. Blair Hull..........................................  $100,000   $      0       $    0
  Chairman and Chief Executive Officer
Peter J. Layton........................................   225,000    579,500        3,200
  Executive Vice President
Arthur S. Margulis, Jr. ...............................   240,000    498,466        3,200
  President
Daniel G. Brennan......................................   200,000    535,132        3,200
  Executive Vice President
Timothy J. Hunter......................................   200,000    419,834        3,200
  Executive Vice President and
  Chief Financial Officer
</TABLE>
 
- ---------------
 
(a) Payment of one-half of the reported bonus is deferred for three years
    subject to forfeiture in the event the executive officer leaves our firm.
    During the deferral period, the deferred amounts earn a return based on our
    return on capital, a portion of which is paid quarterly.
 
(b) Represents amounts contributed on behalf of each executive officer by our
    firm under our 401(k) plan.
 
                                       56
<PAGE>   60
 
401(k) PLAN
 
       On              , 1999, our Board adopted a 401(k) retirement plan for
our eligible employees. Generally, all employees aged 21 and over who have
completed six months of service with us may participate in our 401(k) plan. We
may make matching contributions to the accounts of our employees who make 401(k)
contributions during the year. Participants will vest in their account balances
attributable to matching contributions in 20 percent increments, and will become
fully vested after completing seven years of service with us. Generally,
distributions from our 401(k) plan will be made following an employee's
termination of employment. The assets of our 401(k) plan may be invested in our
common stock, as directed by plan participants. We have reserved a total of
           shares of our common stock to issue under our 401(k) plan.
 
1999 LONG-TERM INCENTIVE PLAN
 
       On              , 1999, our Board adopted and on              , 1999, our
stockholders approved, our 1999 Long-Term Incentive Plan. Under this plan, we
may grant stock options, stock appreciation rights, shares of common stock and
performance units to our employees and consultants. The total number of shares
of our common stock that we may award under this plan is            shares,
which may be adjusted in some cases. The maximum number of shares of common
stock that any individual participant may receive each year under our long-term
incentive plan is            , and the maximum cash payout for grants or awards
under this plan each year to any of our key executive officers is $           .
 
       Our compensation committee administers our long-term incentive plan. This
plan essentially gives the compensation committee sole discretion and authority
to:
 
       - select those employees to whom awards will be made;
 
       - designate the number of shares covered by each award;
 
       - establish vesting schedules and terms of each award;
 
       - specify all other terms of awards; and
 
       - interpret the plan.
 
       Options awarded under our long-term incentive plan may be either
incentive stock options or nonqualified stock options. Incentive stock options
are intended to satisfy the requirements of Section 422 of the Internal Revenue
Code, while nonqualified stock options are not. We may grant stock appreciation
rights in connection with options, or as free-standing awards. If a participant
exercises an option, he or she will surrender the related stock appreciation
right. At a minimum, the exercise price of an option or stock appreciation right
must be greater than 100% of the fair market value of a share of common stock on
the date on which we grant the option or stock appreciation rights, and the par
value of a share of common stock on that date. Options and stock appreciation
rights will be exercisable and will expire in accordance with the terms set by
the compensation committee. Under this plan, all options and stock appreciation
rights must expire within ten years after they are granted. If a stock
appreciation right is issued in connection with an option, the stock
appreciation right will expire when the related option expires. Special rules
and limitations apply to stock options which are intended to be incentive stock
options.
 
                                       57
<PAGE>   61
 
       Under our long-term incentive plan, our compensation committee may grant
common stock awards to participants. During the period that a stock award is
subject to restrictions or limitations, the participants may receive dividend
rights awards relating to the shares.
 
       Our compensation committee may award participants performance units which
entitle the participant to receive value for the units at the end of a
performance period, if and to the extent the award so provides. Our compensation
committee will establish the number of units and the performance measures and
periods when it makes an award.
 
       All awards under our long-term incentive plan will accelerate and become
fully vested if a change in the control of our firm occurs.
 
       In connection with the offering, we expect to issue options covering a
total of      shares of our common stock. The following table sets forth grants
of options under the 1999 Long-Term Incentive Plan to be made to the named
executive officers and to all executive officers as a group. The exercise price
per share of all these options will be the public offering price in the
offering.
 
<TABLE>
<CAPTION>
                                                              SHARES UNDERLYING
NAME                                                           OPTIONS GRANTED
<S>                                                           <C>
M. Blair Hull...............................................
Peter J. Layton.............................................
Arthur S. Margulis, Jr. ....................................
Daniel G. Brennan...........................................
Timothy J. Hunter...........................................
All executive officers as a group (11 people)...............
</TABLE>
 
1999 SPECIAL RESTRICTED STOCK PLAN
 
       On                 , 1999, our Board adopted and on                 ,
1999, our stockholders approved; our 1999 Special Restricted Stock Plan. Under a
predecessor plan adopted by Hull and Associates, restricted membership interests
have been granted to certain of our key employees. Upon the conversion of Hull
and Associates into a "C" corporation, the restricted membership interests will
be converted into shares of restricted stock in The Hull Group and be subject to
the 1999 Special Restricted Stock Plan. The total amount of membership interests
subject to awards under the plan will be $16 million or            shares of
common stock in The Hull Group, based on the initial public offering price of
our common stock. The restricted membership interests which have been granted
were contributed by M. Blair Hull and certain members of his family from their
personal holdings.
 
       Awards under this plan will vest in equal annual increments over a period
of four years, beginning on the second anniversary of the date on which the
interests are awarded. An employee must be employed by us on the vesting date to
become vested in the shares. All unvested shares are forfeited at the time of an
employee's termination of employment and are then available to be re-allocated
at the discretion of our compensation committee. Any shares that are not so
re-allocated or that do not vest at the end of the fifth year will revert to M.
Blair Hull and the members of his family who had contributed the restricted
membership interests.
 
                                       58
<PAGE>   62
 
       The following table sets forth the number of shares of restricted stock
to be granted under the 1999 Special Restricted Stock Plan to the named
executive officers and to all executive officers as a group.
 
<TABLE>
<CAPTION>
                            NAME                              NUMBER OF SHARES
<S>                                                           <C>
M. Blair Hull...............................................
Peter J. Layton.............................................
Arthur S. Margulis, Jr. ....................................
Daniel G. Brennan...........................................
Timothy J. Hunter...........................................
All executive officers as a group (11 people)...............
</TABLE>
 
EMPLOYEE STOCK PURCHASE PLAN
 
       On              , 1999, our Board adopted and on              , 1999, our
stockholders approved, our Employee Stock Purchase Plan. In general, all of our
employees and the employees of our participating subsidiaries may participate in
our employee stock purchase plan for any offering period. An offering period may
be limited by the terms and conditions of this plan. We will purchase shares
issued under this plan in the open market and resell them to the participants at
a discount. We will initially register a total of            shares for
re-issuance under this plan.
 
       Eligible employees may choose to participate in our employee stock
purchase plan during annual offering periods by authorizing payroll deductions,
subject to limitations imposed by the Internal Revenue Code. Generally, offering
periods will start on January 1 and end on December 31 of each year, although
the first offering period under this plan will start on October 1, 1999 and will
end on December 31, 1999. On the last business day of each calendar quarter
during the offering period, we will use the participant's accumulated payroll
deductions on that date to purchase shares of our common stock. The purchase
price per share of our common stock purchased on that date will equal either:
 
               (1) 85% of the fair market value of a share of our common stock
                   on the first business day of the offering period, or
 
               (2) 85% of the fair market value of a share of our common stock
                   on the exercise date,
 
whichever is lower. The purchase price may not be less than the par value per
share.
 
       Participants may withdraw from our employee stock purchase plan at any
time during an offering period. If an employee withdraws, he or she may not
participate again in the plan until the beginning of the next offering period. A
participant may increase or decrease the amount of his or her payroll deductions
only on the first day of every offering period. We will automatically terminate
participation upon a participant's termination of employment for any reason. If
an employee withdraws or terminates participation in our employee stock purchase
plan, we will either return all accumulated payroll deductions to the
participant, without interest, or use those deductions to purchase whole shares
of our common stock for the participant's account. If any amounts are not used
to purchase shares, we will return those amounts to the participant in cash.
 
                                       59
<PAGE>   63
 
                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
       Immediately before the closing of this offering, we will convert our
business form to a corporation. We will effect the reorganization by merging
Hull and Associates, L.L.C. into a newly formed Delaware corporation called The
Hull Group Inc. In connection with this reorganization, our limited liability
company operating agreement will terminate. Each member of Hull and Associates
will receive shares of our common stock in exchange for his or her membership
interests at a rate of            shares per membership interest, for an
aggregate of            shares of common stock. For more information on the
stock ownership of the members after the reorganization, see "Principal
Stockholders." Immediately before this reorganization, we expect that the
members of Hull and Associates will withdraw members' equity from Hull and
Associates in accordance with our limited liability company operating agreement,
including distributions for members' income taxes related to our earnings.
 
       In connection with the reorganization, M. Blair Hull Inc., a family
holding company for M. Blair Hull, our Chairman and Chief Executive Officer, and
members of his family, will be merged into The Hull Group Inc. At the time of
that merger, M. Blair Hull Inc.'s only assets will be shares of our common stock
received in the reorganization. The only consequence of this merger will be that
the stockholders of M. Blair Hull Inc. will own directly a number of shares of
our common stock equal to the number of shares of our common stock owned by the
family holding company. There will be no tax or accounting consequences to us.
 
       M. Blair Hull, our Chairman and Chief Executive Officer, is a director of
BARRA, Inc. In 1996, we paid BARRA, Inc. approximately $75,000 for data analysis
and methodologies. In 1997, we paid BARRA, Inc. $194,915 for data analysis,
methodologies, a seminar and software licenses. In 1998, we paid BARRA, Inc.
$377,547 for software licenses and data analysis.
 
       Arthur S. Margulis, Jr., our President, was the president and sole
shareholder of ASM Trading Inc. In 1997, ASM Trading Inc. paid us $116,350 of
which $32,000 was for a license fee and $84,350 was our share of ASM Trading
Inc.'s trading profits.
 
       Alger B. Chapman, one of our directors, is a Vice Chairman of ABN AMRO
Incorporated. ABN AMRO has provided us investment banking services in the past,
and we anticipate that it will continue to do so in the future. In addition,
during the last three years, ABN AMRO or its subsidiaries have paid us to
purchase customer information and for trading management services. During the
last three years, we have paid ABN AMRO or its subsidiaries for execution
services and order flow. In any year, these payments did not, in the aggregate,
exceed 5% of our consolidated gross revenues or 5% of ABN AMRO's consolidated
gross revenues.
 
       On May 5, 1999, our subsidiary Hull Equity Management L.L.C. transferred
all of its rights to the business names and other intellectual property
associated with Efficient Capital Fund, LLC and ECF II, LLC to Efficient Capital
Management, LLC. Efficient Capital Fund and ECF II are private investment funds
formerly managed by Hull Equity Management. Efficient Capital Management paid
Hull Equity Management nominal consideration for this transfer. Mr. Hull, our
Chairman and CEO, and Mr. Layton, a Director and Executive Vice President, own
interests in Efficient Capital Management.
 
       Some of our officers and directors have assets under management in one or
more of the investment funds we manage on terms generally available to third
parties.
 
                                       60
<PAGE>   64
 
                             PRINCIPAL STOCKHOLDERS
 
       The following table shows the beneficial ownership of our common stock on
             , 1999 by: (1) each person who we know beneficially owns more than
5% of our common stock, (2) our directors and named executive officers and (3)
all of our directors and executive officers as a group. Beneficial ownership,
which is determined in accordance with the rules and regulations of the SEC,
means the sole or shared power to vote or direct the voting or to dispose or
direct the disposition of our common stock. The number of shares of our common
stock beneficially owned by a person includes shares of common stock issuable
with respect to options held by the person which are exercisable within 60 days.
The percentage of our common stock beneficially owned by a person assumes that
the person has exercised all options the person holds which are exercisable
within 60 days and that no other persons exercised any of their options. Unless
otherwise indicated in the footnotes, all of the interests are owned directly,
and the person has sole voting and dispositive power. Unless otherwise
indicated, the address of each beneficial owner listed below is c/o The Hull
Group Inc., 311 South Wacker Drive, Chicago, Illinois 60606.
 
<TABLE>
<CAPTION>
                                                                SHARES BENEFICIALLY OWNED
                                                       -------------------------------------------
                                                                  PERCENT PRIOR TO   PERCENT AFTER
                                                        NUMBER      THE OFFERING     THE OFFERING
<S>                                                    <C>        <C>                <C>
M. Blair Hull........................................
Peter J. Layton......................................
Arthur S. Margulis, Jr...............................
Daniel G. Brennan....................................
Timothy J. Hunter....................................
Alger B. Chapman.....................................
Frederick Grauer.....................................
Craig Heimark........................................
Wilmot J. Nicholson..................................
All directors and executive officers as a group (11
  people)............................................
</TABLE>
 
                                       61
<PAGE>   65
 
                          DESCRIPTION OF CAPITAL STOCK
 
       The following description summarizes some of the general terms and
provisions of our capital stock and our certificate of incorporation and bylaws.
This description is not complete and you should refer to our certificate of
incorporation and bylaws and to Delaware law for more information.
 
AUTHORIZED AND OUTSTANDING CAPITAL STOCK
 
       Our authorized capital stock consists of 100,000,000 shares of common
stock, par value $0.01 per share, and 25,000,000 shares of preferred stock, par
value $0.01 per share. On                       , 1999,            shares of our
common stock were outstanding. After the offering,            shares of our
common stock will be outstanding if the underwriters do not exercise their
over-allotment option, or            shares if the underwriters exercise their
over-allotment option in full. No shares of our preferred stock are currently
outstanding.
 
COMMON STOCK
 
       Our certificate of incorporation authorizes us to issue 100,000,000
shares of our common stock. All holders of our common stock will share equally
on a per share basis in all dividends and other distributions which our Board
declares out of funds legally available for that purpose. Each stockholder is
entitled to one vote for each share of common stock which the stockholder owns
on all matters submitted to a vote of our stockholders. Our certificate of
incorporation does not provide for cumulative voting, which means that the
holders of a majority of the shares of our common stock can elect all of our
directors. The holders of our common stock do not have any right to convert or
have us redeem their shares or any preemptive rights to purchase any of our
securities. Upon our liquidation, dissolution or winding-up, all holders of our
common stock will share equally on a per share basis in our remaining assets
available for distribution after we satisfy all of our liabilities and pay
holders of any of our outstanding preferred stock their liquidation preferences.
Each outstanding share of common stock is, and all shares of our common stock
that we are offering will be, fully paid and nonassessable.
 
PREFERRED STOCK
 
       Our certificate of incorporation authorizes us to issue 25,000,000 shares
of our preferred stock. Our Board can issue shares of our preferred stock, in
one or more series. For each series of our preferred stock, our Board can
determine the powers, preferences, rights, qualifications, limitations and
restrictions, including the dividend rights, conversion rights, voting rights,
terms of redemption, liquidation preferences and the number of shares in the
series. As a result, our Board can authorize and issue shares of preferred stock
with voting or conversion rights which may adversely affect the voting or other
rights of holders of our common stock. In addition, the issuance of preferred
stock may delay or prevent a transaction which would cause a change in our
control, because the rights given to the holders of a series of preferred stock
may prohibit a merger, reorganization, sale of all or substantially all of our
assets, liquidation or other extraordinary corporate transaction.
 
CLASSIFIED BOARD OF DIRECTORS
 
       Our certificate of incorporation provides that our Board may establish
the number of our directors, provided that we must have at least three directors
and may not have more than 15, except that our Board currently consists of two
directors and may until a third initial director is
 
                                       62
<PAGE>   66
 
appointed. Our Board will increase its size to seven directors prior to the
closing of the offering. A majority of the remaining directors may fill any
vacancy in our Board, including a vacancy resulting from an increase in the size
of our Board. Our certificate of incorporation divides our Board into three
classes of directors. Messrs. Grauer and Heimark will serve as Class I directors
and will hold office until our annual meeting of stockholders in 2000. Messrs.
Chapman, Layton and Nicholson will serve as Class II directors and will hold
office until our annual meeting in 2001. Messrs. Hull and Margulis will serve as
Class III directors and will hold office until our annual meeting in 2002. As
the term of each class expires, the directors elected to that class will hold
office for three years, unless they die or resign or are removed before that
time. As a result, at least two annual meetings of stockholders, instead of one,
will generally be required to change a majority of our directors. Also, our
stockholders can only remove directors for cause by the affirmative vote of the
holders of 80% or more of the outstanding shares of capital stock entitled to
vote in the election of directors.
 
       We believe that our classified Board and the inability of our
stockholders to remove directors without cause or to fill vacancies on our Board
will help ensure the continuity and stability of our business strategy and
policies from year to year. However, it also makes the removal of incumbent
directors more time-consuming and difficult. This may discourage third parties
from attempting to obtain control of our firm, even if the change in control
would be in the best interests of our stockholders.
 
ADVANCE NOTICE OF DIRECTOR NOMINATIONS AND BUSINESS PROPOSALS
 
       We have adopted advance notice provisions in our bylaws which require our
stockholders to present their nominations for directors or other business
proposals for our annual meeting within a specified time frame. In general,
stockholders must deliver their notice of nominations or business proposals to
our Secretary not less than 60 days nor more than 90 days before the first
anniversary of the prior year's annual meeting of stockholders. Any nominations
must include all information relating to the nominated person which is required
to be disclosed in proxy statements under the Securities Act. Any business
proposals must include:
 
       - a brief description of the business proposal;
 
       - the reason for conducting that business at the annual meeting;
 
       - any material interest of the proposing stockholder in that business;
         and
 
       - the name, address and number of shares owned by the proposing
         stockholder.
 
These requirements make the election of new directors not nominated by our Board
more time-consuming and difficult, which may discourage third parties from
attempting to obtain control of our firm, even if the change in control would be
in the best interests of our stockholders.
 
AMENDMENT OF BYLAWS AND CERTIFICATE OF INCORPORATION
 
       Our certificate of incorporation requires the approval of 80% or more of
the outstanding shares of capital stock entitled to vote to amend our by-laws or
the provisions of our certificate of incorporation relating to the
classification and composition of our Board. This requirement may discourage
third parties from attempting to obtain control of our firm.
 
                                       63
<PAGE>   67
 
DELAWARE BUSINESS COMBINATION STATUTE
 
       We are organized under Delaware law. Some provisions of Delaware law may
delay or prevent a transaction which would cause a change in our control. In
addition, our certificate of incorporation contains some provisions which may
delay or prevent this type of transaction, even if our stockholders consider the
transaction to be in their best interests.
 
       After the offering, we will be subject to Delaware's anti-takeover laws.
Delaware law prohibits a publicly held corporation from engaging in a "business
combination" with an "interested stockholder" for three years after the
stockholder becomes an interested stockholder, unless the corporation's board of
directors and stockholders approve the business combination in a prescribed
manner. An "interested stockholder" is a person who directly or indirectly owns
15% or more of the corporation's outstanding voting stock. A "business
combination" includes a merger, asset sale or other transaction which results in
a financial benefit to the interested stockholder. Delaware law does not
prohibit these business combinations if:
 
               (1) the corporation's board approves either the business
       combination or the transaction, which results in the stockholder becoming
       an interested stockholder before the stockholder becomes an interested
       stockholder;
 
               (2) after the transaction which results in the stockholder
       becoming an interested stockholder, the interested stockholder owns at
       least 85% of the corporation's outstanding stock; or
 
               (3) the corporation's board approves the business combination and
       the holders of at least two-thirds of the corporation's outstanding
       voting stock which the interested stockholder does not own authorize the
       business combination.
 
LIMITATIONS ON LIABILITY AND INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
       Our certificate of incorporation provides that our directors will not be
personally liable to us or our stockholders for monetary damages for breach of a
fiduciary duty as a director, except for:
 
               (1) any breach of the director's duty of loyalty to us or our
       stockholders;
 
               (2) misconduct or a knowing violation of law;
 
               (3) liability under Delaware corporate law for an unlawful
       payment of dividends or an unlawful stock purchase or redemption of
       stock; or
 
               (4) any transaction from which the director derives an improper
       personal benefit.
 
       Our certificate of incorporation and bylaws require us to indemnify and
advance expenses to our directors and officers to the fullest extent permitted
by Delaware law. Our certificate of incorporation and bylaws also permit us to
indemnify and advance expenses to our employees and agents if our Board approves
it.
 
TRANSFER AGENT AND REGISTRAR
 
       The transfer agent and registrar for our common stock is
                                                                  . Its address
is                                                                   and its
telephone number at this location is
                      .
 
                                       64
<PAGE>   68
 
LISTING
 
       We will apply to list our common stock on the Nasdaq National Market
under the trading symbol "HULL."
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
       Before this offering, no public market has existed for our common stock.
Future sales of substantial amounts of our common stock in the public market, or
the possibility of those sales, may reduce the market price of our common stock
and make it more difficult for us to raise capital by issuing additional stock.
 
       After the offering,            shares of our common stock will be
outstanding if the underwriters do not exercise their over-allotment option and
no holders of our outstanding options exercise those options. Of those shares,
the            shares which we are offering in the offering will be freely
tradable without restriction or further registration under the Securities Act,
except for shares which our affiliates purchase. Shares which our affiliates
purchase will be subject to the volume and other limitations of Rule 144 under
the Securities Act. Our directors and officers will own the remaining
shares. All of these remaining shares will be subject to the volume and other
limitations of Rule 144.
 
       In general, under Rule 144, a stockholder who has owned our common stock
for at least one year may, within any three-month period, sell up to the greater
of:
 
       - 1% of the total number of shares of our common stock then outstanding,
         which will equal approximately            shares immediately after the
         offering; and
 
       - the average weekly trading volume of our common stock on the Nasdaq
         National Market during the four weeks before the person files a notice
         on Form 144 for that sale.
 
       Sales of shares under Rule 144 are also subject to manner of sale and
notice requirements and requirements as to the availability of current public
information about us. Under Rule 144, a stockholder who has not been our
affiliate for at least 90 days and who has beneficially owned shares of our
common stock for at least two years may sell those shares without complying with
the volume limitations or other requirements of Rule 144.
 
       Our directors and officers have agreed not to sell, directly or
indirectly, any of our common stock or any securities convertible into or
exercisable or exchangeable for shares of our common stock without the prior
written consent of Donaldson, Lufkin & Jenrette Securities Corporation until at
least 180 days after the date of this prospectus.
 
       On                         , 1999, options to purchase approximately
     shares of our common stock were outstanding. After the offering, we plan to
file a registration statement on Form S-8 under the Securities Act covering
     shares of our common stock which are reserved for issuance under our option
plan. This registration statement will become effective automatically when we
file it. Shares of our common stock registered under this registration statement
will be available for sale in the open market, subject to vesting restrictions.
Any sales of these shares will be subject to the volume limitations of Rule 144
described above.
 
                                       65
<PAGE>   69
 
                                  UNDERWRITING
 
       Subject to the terms and conditions contained in the underwriting
agreement dated              , 1999, the underwriters named below, who are
represented by Donaldson, Lufkin & Jenrette Securities Corporation, ABN AMRO
Incorporated and Putnam, Lovell, de Guardiola & Thornton, Inc. have severally
agreed to purchase from us the respective number of shares set forth opposite
their names below.
 
<TABLE>
<CAPTION>
                                                               NUMBER OF
                                                                 SHARES
<S>                                                            <C>
UNDERWRITERS:
  Donaldson, Lufkin & Jenrette Securities Corporation.......
  ABN AMRO Incorporated.....................................
  Putnam, Lovell, de Guardiola & Thornton, Inc. ............
                                                               ----------
 
     Total..................................................
                                                               ==========
</TABLE>
 
       The underwriting agreement provides that the obligations of the several
underwriters to purchase and accept delivery of the shares included in this
offering are subject to approval of legal matters by their counsel and to other
specified conditions. The underwriting agreement provides that the underwriters
are obligated to purchase and accept delivery of all of the shares (other than
those shares covered by the over-allotment option described below) if they
purchase any of the shares.
 
       The underwriters initially propose to offer some of the shares directly
to the public at the public offering price on the cover page of this prospectus
and some of the shares to dealers at the public offer price less a concession
not in excess of $     per share. The underwriters may allow, and such dealers
may re-allow, a concession not in excess of $     per share on sales to other
dealers. After the initial offering of shares to the public, the representatives
may change the public offering price and such concessions at any time without
notice.
 
       We have granted the underwriters an option, exercisable for 30 days from
the date of this prospectus, to purchase, from time to time, in whole or in
part, up to            additional shares at the public offering price less the
underwriting fees. The underwriters may exercise such option solely to cover
overallotments, if any, made in connection with this offering. To the extent
that the underwriters exercise such option, each underwriter will become
obligated, subject to specified conditions, to purchase a number of additional
shares approximately proportionate to such underwriter's initial purchase
commitment.
 
       The following table shows the underwriting fees to be paid to the
underwriters in connection with this offering. These amounts are shown assuming
both no exercise and full exercise of the underwriters' option to purchase
additional shares of our common stock.
 
<TABLE>
<CAPTION>
                                                              NO EXERCISE   FULL EXERCISE
<S>                                                           <C>           <C>
Per share...................................................   $              $
Total.......................................................   $              $
</TABLE>
 
       We estimate the offering expenses will total $1.0 million.
 
       The underwriters have reserved for sale, at the initial offering price,
up to         shares of our common stock for our employees, directors and other
individuals associated with us who have expressed an interest in purchasing such
shares of common stock in this offering. The number of shares of common stock
available for sale to the general public in this offering will be
 
                                       66
<PAGE>   70
 
reduced to the extent these individuals purchase the reserved shares. Any
reserved shares not purchased will be offered by the underwriters to the general
public on the same terms as the other shares offered by this prospectus.
 
       We have agreed to indemnify the underwriters against some liabilities,
including civil liabilities under the Securities Act, or to contribute to
payments that the underwriters may be required to make in respect of those
liabilities.
 
       We and our executive officers and directors have agreed that, subject to
some exceptions for a period of 180 days from the date of this prospectus, they
will not, without the prior written consent of Donaldson, Lufkin & Jenrette
Securities Corporation:
 
       - offer, pledge, sell, contract to sell, sell or purchase any option or
         contract to purchase or sell, as applicable, any shares of common stock
         or any securities convertible into or exercisable or exchangeable for
         common stock;
 
       - grant any option, right or warrant to purchase or otherwise transfer or
         dispose of, directly or indirectly, any shares of common stock or any
         securities convertible into or exercisable or exchangeable for common
         stock;
 
       - enter into any swap or other arrangement that transfers all or a
         portion of the economic consequences associated with the ownership of
         common stock.
 
       We will apply to list the shares of our common stock on the Nasdaq
National Market under the trading symbol "HULL."
 
       Prior to the offering, no public market has existed for our common stock.
We will negotiate the initial public offering price for our common stock with
the representatives, but the price may not reflect the market price for our
common stock after the offering. Among the principal factors which we and the
representatives will consider in determining the initial public offering price
will be:
 
       - the information included in this prospectus and otherwise available to
         the representatives;
 
       - the history of and prospects for our industry;
 
       - our past and present operations, including our past and present
         earnings and current financial position, the ability of our management
         and our prospects for future earnings; and
 
       - the recent market prices of, and the demand for, publicly traded common
         stock of generally comparable companies and market conditions for
         initial public offerings.
 
       The representatives of the underwriters have advised us that the
underwriters do not expect discretionary sales to exceed   % of the common stock
being offered.
 
       Our common stock may trade at prices significantly below the initial
public offering price. Also, we cannot assure you that an active trading market
for our common stock will develop and continue after the offering.
 
       Other than in the United States, no action has been taken by us or the
underwriters that would permit a public offering of the shares of common stock
included in this offering in any jurisdiction where action for that purpose is
required. The shares included in this offering may not be offered or sold,
directly or indirectly, nor may this prospectus or any other offering
 
                                       67
<PAGE>   71
 
material or advertisement in connection with the offer and sale of any such
shares be distributed or published in any jurisdiction, except under
circumstances that will result in compliance with the applicable rules and
regulations of such jurisdiction. Persons who receive this prospectus are
advised to inform themselves about and to observe any restrictions relating to
this offering and the distribution of this prospectus. This prospectus is not an
offer to sell or a solicitation of an offer to buy any shares of common stock
included in this offering in any jurisdiction where that would not be permitted
or legal.
 
       In connection with this offering, the underwriters may engage in
transactions that stabilize, maintain or otherwise affect the price of the
common stock. Specifically, the underwriters may overallot this offering,
creating a syndicate short position. In addition, the underwriters may bid for
and purchase shares of common stock in the open market to cover such syndicate
short position or to stabilize the price of the common stock. These activities
may stabilize or maintain the market price of the common stock above independent
market levels. The underwriters are not required to engage in these activities,
and may end any of these activities at any time.
 
       ABN AMRO Incorporated and Putnam, Lovell, de Guardiola & Thornton, Inc.
have each provided us with investment banking services in the past, and we
anticipate that they will continue to do so in the future. In addition, during
the last three years, ABN AMRO or its subsidiaries have paid us to purchase
customer information and for trading management services and we have paid ABN
AMRO or its subsidiaries for execution services and order flow.
 
                                 LEGAL MATTERS
 
       Mayer, Brown & Platt, Chicago, Illinois, will pass on the validity of the
shares of our common stock which we are offering for us. Skadden, Arps, Slate,
Meagher & Flom (Illinois), Chicago, Illinois, will pass on legal matters for the
underwriters.
 
                                    EXPERTS
 
       We have included our consolidated financial statements as of December 31,
1997 and for the years ended December 31, 1996 and 1997 in this prospectus in
reliance on the report of Schultz & Chez, L.L.P., independent public
accountants, given on the authority of that firm as experts in accounting and
auditing. We have included our consolidated financial statements as of and for
the year ended December 31, 1998 in this prospectus in reliance on the report of
Ernst & Young LLP, independent auditors, given on the authority of that firm as
experts in auditing and accounting.
 
                             ADDITIONAL INFORMATION
 
       After this offering, we will be required to file annual, quarterly and
current reports, proxy statements and other information with the SEC. Our SEC
filings are available to the public over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document that we file with
the SEC at the SEC's public reference rooms in Washington, D.C., New York, New
York and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for more
information on the public reference rooms. After we receive approval of our
common stock for listing on the Nasdaq Stock Market, you may also read any
document we file with the SEC at the offices of Nasdaq Operations, 1735 K
Street, N.W., Washington, D.C. 20006.
 
       We filed a registration statement on Form S-1 with the SEC. This
prospectus does not contain all of the information in the registration
statement. Please refer to the registration
 
                                       68
<PAGE>   72
 
statement for more information about us and our common stock. Statements in this
prospectus about any contract or any other document are not necessarily complete
and you should refer to the copy of that contract or other document which we
filed as an exhibit to the registration statement. You may read a copy of the
registration statement at any of the sources described above.
 
                                       69
<PAGE>   73
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
<S>                                                           <C>
CONSOLIDATED FINANCIAL STATEMENTS OF HULL TRADING COMPANY,
  L.L.C. AND SUBSIDIARIES
Report of Independent Auditors..............................   F-2
Report of Independent Auditors..............................   F-3
Consolidated Statements of Operations for the years ended
  December 31, 1996, 1997 and 1998..........................   F-4
Consolidated Statements of Financial Condition as of
  December 31, 1997 and 1998................................   F-5
Consolidated Statements of Members' Equity for the years
  ended December 31, 1996, 1997 and 1998....................   F-6
Consolidated Statements of Cash Flows for the years ended
  December 31, 1996, 1997 and 1998..........................   F-7
Notes to Consolidated Financial Statements..................   F-8
UNAUDITED INTERIM CONSOLIDATED FINANCIAL STATEMENTS OF HULL
  AND ASSOCIATES, L.L.C. AND SUBSIDIARIES
Unaudited Interim Consolidated Statements of Operations for
  the three months ended March 31, 1998 and 1999............  F-15
Unaudited Interim Consolidated Statement of Financial
  Condition as of March 31, 1999............................  F-16
Unaudited Interim Consolidated Statement of Members' Equity
  for the three months ended March 31, 1999.................  F-17
Unaudited Interim Consolidated Statements of Cash Flows for
  the three months ended March 31, 1998 and 1999............  F-18
Notes to Interim Unaudited Consolidated Financial
  Statements................................................  F-19
UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
Unaudited Pro Forma Consolidated Statements of Operations...  F-21
Unaudited Pro Forma Consolidated Statements of Financial
  Condition.................................................  F-23
Notes to Unaudited Pro Forma Consolidated Financial
  Statements................................................  F-24
</TABLE>
 
                             ---------------------
 
The Hull Group Inc. is a holding company that was newly formed in connection
with the Offering and, accordingly, has not previously engaged in any business
operations, acquired any assets or incurred any liabilities other than in
connection with the Offering. Accordingly, the historical financial statements
of The Hull Group Inc. are not included in this Prospectus because management
has determined that they are not material to an investment decision.
 
                                       F-1
<PAGE>   74
 
                         REPORT OF INDEPENDENT AUDITORS
 
The Members
Hull Trading Company, L.L.C.
 
       We have audited the accompanying consolidated statement of financial
condition of Hull Trading Company, L.L.C. and subsidiaries as of December 31,
1997, and the related consolidated statements of operations, members' equity and
cash flows for each of the two years in the period ended December 31, 1997.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements based
on our audits.
 
       We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
       In our opinion, the financial statements referred to above present
fairly, in all material respects, the consolidated financial position of Hull
Trading Company, L.L.C. and subsidiaries as of December 31, 1997, and the
consolidated results of their operations and their cash flows for each of the
two years in the period ended December 31, 1997, in conformity with generally
accepted accounting principles.
 
                                            SCHULTZ & CHEZ, L.L.P.
 
Chicago, Illinois
February 5, 1998
 
                                       F-2
<PAGE>   75
 
                         REPORT OF INDEPENDENT AUDITORS
 
The Members
Hull Trading Company, L.L.C.
 
       We have audited the accompanying consolidated statement of financial
condition of Hull Trading Company, L.L.C. and subsidiaries as of December 31,
1998, and the related consolidated statements of operations, members' equity and
cash flows for the year then ended. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audit.
 
       We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
       In our opinion, the financial statements referred to above present
fairly, in all material respects, the consolidated financial position of Hull
Trading Company, L.L.C. and subsidiaries at December 31, 1998, and the
consolidated results of their operations and their cash flows for the year then
ended in conformity with generally accepted accounting principles.
 
                                            ERNST & YOUNG LLP
 
Chicago, Illinois
April 30, 1999
 
                                       F-3
<PAGE>   76
 
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                YEARS ENDED DECEMBER 31,
                                                              -----------------------------
                                                               1996       1997       1998
<S>                                                           <C>       <C>        <C>
REVENUES:
Principal transactions......................................  $60,443   $109,637   $ 96,234
Asset management fees.......................................    6,675     11,610      9,995
Interest & dividends........................................   17,525     61,137     45,489
Other income................................................      478      1,210      1,127
                                                              -------   --------   --------
  Total revenues............................................   85,121    183,594    152,845
Interest & dividend expense.................................   14,669     67,350     49,732
                                                              -------   --------   --------
  Net revenues..............................................   70,452    116,244    103,113
OPERATING EXPENSES:
Compensation................................................   17,225     23,603     25,400
Exchange, clearing & brokerage..............................    8,784     17,496     20,315
Communications & technology.................................    2,545      3,027      4,153
Occupancy...................................................    1,386      1,398      2,119
Professional fees...........................................    1,148      2,120      2,897
Depreciation & amortization.................................    2,059      2,411      2,897
Other operating expenses....................................    3,262      6,134      4,771
                                                              -------   --------   --------
  Total operating expenses..................................   36,409     56,189     62,552
                                                              -------   --------   --------
Income before income taxes..................................   34,043     60,055     40,561
Foreign income taxes........................................      343      7,308     10,901
                                                              -------   --------   --------
  Net income................................................  $33,700   $ 52,747   $ 29,660
                                                              =======   ========   ========
</TABLE>
 
                            See accompanying notes.
 
                                       F-4
<PAGE>   77
 
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
                 CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                AS OF DECEMBER 31,
                                                              -----------------------
                                                                 1997         1998
<S>                                                           <C>          <C>
                           ASSETS
 
Cash........................................................  $    2,925   $    2,723
Receivables from clearing brokers...........................      77,275       24,123
Securities owned............................................   1,536,559    1,723,793
Investments in private investment funds.....................      10,334       16,990
Property, leasehold improvements and equipment, net.........       4,922        7,128
Other assets................................................      20,277       18,338
                                                              ----------   ----------
                                                              $1,652,292   $1,793,095
                                                              ==========   ==========
 
              LIABILITIES AND MEMBERS' EQUITY
 
Short-term borrowings.......................................  $    5,192   $   10,107
Payables to clearing brokers................................     141,961      354,158
Securities sold, not yet purchased..........................   1,384,847    1,281,634
Compensation payable........................................      14,554       25,452
Income taxes payable........................................       7,241       18,038
Accrued expenses and other liabilities......................       5,790        8,127
                                                              ----------   ----------
                                                               1,559,585    1,697,516
          Members' equity...................................      92,707       95,579
                                                              ----------   ----------
          Total liabilities and members' equity.............  $1,652,292   $1,793,095
                                                              ==========   ==========
</TABLE>
 
                            See accompanying notes.
 
                                       F-5
<PAGE>   78
 
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
                   CONSOLIDATED STATEMENTS OF MEMBERS' EQUITY
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                 YEARS ENDED DECEMBER 31,
                                                              ------------------------------
                                                                1996       1997       1998
<S>                                                           <C>        <C>        <C>
Beginning of year...........................................  $ 60,303   $ 74,947   $ 92,707
Member contributions........................................     3,672      5,014      5,231
Member distributions........................................   (22,728)   (40,001)   (32,019)
Net income..................................................    33,700     52,747     29,660
                                                              --------   --------   --------
End of year.................................................  $ 74,947   $ 92,707   $ 95,579
                                                              ========   ========   ========
</TABLE>
 
                            See accompanying notes.
 
                                       F-6
<PAGE>   79
 
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                YEARS ENDED DECEMBER 31,
                                                            ---------------------------------
                                                              1996        1997        1998
<S>                                                         <C>         <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................................  $  33,700   $  52,747   $  29,660
Adjustments to reconcile net income to net cash provided
  by (used in) operating activities:
  Depreciation & amortization.............................      2,059       2,411       2,897
  Gain on sales of exchange memberships...................         --          --        (498)
  Equity in net income of private investment funds........     (1,499)     (2,100)     (1,606)
  Decrease (increase) in receivables from clearing
     brokers..............................................     59,428     (73,315)     53,152
  (Increase) in securities owned..........................   (394,360)   (676,940)   (187,234)
  Decrease (increase) in other assets.....................      3,083      (4,739)      1,363
  Increase (decrease) to payables to clearing brokers.....    127,426     (18,038)    212,197
  Increase (decrease) in securities sold, not yet
     purchased............................................    169,621     745,097    (103,213)
  Increase (decrease) compensation payable................      4,361       1,588      (3,398)
  Increase (decrease) in income taxes payable.............     (1,183)      6,940      10,797
  Increase (decrease) in accrued expenses and other
     liabilities..........................................     (7,146)      2,511       2,337
                                                            ---------   ---------   ---------
Net cash provided by (used in) operating activities.......     (4,510)     36,162      16,454
 
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, leasehold improvements and
  equipment...............................................     (2,156)     (3,229)     (5,103)
Sales/purchases of exchange memberships...................         --        (228)      1,074
Investments in private investment funds...................     (1,084)         --      (5,050)
                                                            ---------   ---------   ---------
Net cash used in investing activities.....................     (3,240)     (3,457)     (9,079)
 
CASH FLOWS FROM FINANCING ACTIVITIES:
Member contributions......................................      3,672       5,014       5,231
Member distributions......................................    (22,078)    (33,869)    (17,723)
Increase (decrease) in short-term borrowings, net.........      8,706      (3,514)      4,915
(Decrease) in liabilities subordinated to claims of
  general creditors.......................................     (6,000)         --          --
                                                            ---------   ---------   ---------
Net cash used in financing activities.....................    (15,700)    (32,369)     (7,577)
                                                            ---------   ---------   ---------
Net increase (decrease) in cash...........................    (23,450)        336        (202)
Cash at beginning of year.................................     26,039       2,589       2,925
                                                            ---------   ---------   ---------
Cash at end of year.......................................  $   2,589       2,925   $   2,723
                                                            =========   =========   =========
 
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest....................................  $  10,126   $  63,315   $  44,767
Cash paid for foreign income taxes........................      1,526         368         104
 
SUPPLEMENTAL DISCLOSURE OF NON-CASH OPERATING AND
  FINANCING ACTIVITY:
Compensation payable to members reflected as member
  distributions...........................................        650       6,132      14,296
</TABLE>
 
                            See accompanying notes.
 
                                       F-7
<PAGE>   80
 
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (IN THOUSANDS)
 
1. ORGANIZATION AND BASIS OF PRESENTATION
 
       Hull Trading Company, L.L.C. ("Hull"), an Illinois limited liability
company, and its wholly-owned subsidiaries Hull Trading GmbH ("GmbH"), Hull
Trading Asia, and Hull Trading U.K. Ltd., operate as market makers and traders
in exchange-traded equity derivatives and equity securities. Hull is a
registered broker-dealer with the Securities and Exchange Commission. Hull
Equity Management, L.L.C. ("HEM"), a wholly-owned subsidiary of Hull, operates
as the general partner and investment manager for a series of limited
partnerships and limited liability companies.
 
       The consolidated financial statements are presented in U.S. dollars and
include the accounts of Hull Trading Company, L.L.C. and its wholly-owned
subsidiaries (collectively, "the Company"). All significant intercompany
balances and transactions have been eliminated in consolidation. Certain prior
years amounts were reclassified to conform with the 1998 presentation.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  USE OF ESTIMATES
 
       Generally accepted accounting principles require management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosures of contingent assets and liabilities at the date of
the consolidated financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.
 
  SECURITIES OWNED AND SECURITIES SOLD, NOT YET PURCHASED
 
       Securities owned and securities sold, not yet purchased are valued at
market value based on listed market prices. Unrealized gains and losses are
reflected in principal transactions on the consolidated statements of
operations. Securities sold, not yet purchased represent obligations of the
Company to purchase the securities at prevailing market prices. The ultimate
gains or losses recognized are dependent upon the prices at which these
securities are purchased to settle the obligation under the sales commitments.
Securities transactions are recorded on the trade date.
 
  FUTURES TRANSACTIONS
 
       Futures contracts are valued at market value based on exchange settlement
prices. Unrealized gains and losses on futures contracts are reflected in
principal transactions in the consolidated statements of operations.
 
  PROPERTY, LEASEHOLD IMPROVEMENTS AND EQUIPMENT
 
       Property, leasehold improvements and computer software are recorded at
cost. Equipment and furniture is depreciated over their estimated useful lives
using accelerated methods. Leasehold improvements are amortized over the
respective lease term using the straight-line method. Computer software is
depreciated over five years using the straight-line method. At
 
                                       F-8
<PAGE>   81
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
December 31, 1997 and 1998, accumulated depreciation and amortization totaled
$11,977 and $14,117, respectively.
 
  FOREIGN CURRENCIES
 
       Assets and liabilities in foreign currencies are translated into U.S.
dollars using current exchange rates at the date of the consolidated statements
of financial condition. Revenues and expenses are translated at average rates
during the period. The functional currency of the Company's wholly-owned foreign
subsidiaries is the U.S. dollar. The foreign exchange gains and losses resulting
from these transactions are included in other operating expenses in the
consolidated statements of operations. Foreign exchange gains (losses) for the
years ended December 31, 1996, 1997 and 1998 were $(1,016), $(1,709) and $1,111,
respectively.
 
  INCOME TAXES
 
       No provision has been made for U.S. federal and state income taxes as the
taxable income or loss of the Company is included in the respective income tax
returns of the members. A provision has been made for foreign income taxes
related to Hull's earnings from its foreign subsidiaries.
 
  INVESTMENTS IN PRIVATE INVESTMENT FUNDS
 
       Investments in a series of limited partnerships and limited liability
companies (collectively, "private investment funds") are accounted for using the
equity method, under which the Company's share of net income or loss is
reflected in income as earned and distributions received, if any, are reductions
of the investments.
 
  FAIR VALUE OF FINANCIAL INSTRUMENTS
 
       All of the Company's financial instruments are carried at fair value or
amounts approximating fair value.
 
  COMPREHENSIVE INCOME
 
       The Company has adopted Statement of Financial Accounting Standards
("SFAS") No. 131, Reporting Comprehensive Income, that requires companies to
report all changes in equity during a period, except those resulting from
investments by owners and distributions to owners. The Company has not presented
consolidated statements of comprehensive income because it does not have any
items of "other comprehensive income."
 
  RECENT ACCOUNTING PRONOUNCEMENTS
 
       In March 1998, the American Institute of Certified Public Accountants
(the "AICPA") issued Statement of Position 98-1, Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use ("SOP 98-1"). This
statement requires that certain costs of computer software developed or obtained
for internal use be capitalized and amortized over the useful life of the
related software. SOP 98-1 is effective for financial statements for fiscal
years beginning after December 15, 1998. The Company currently expenses its
costs of computer
 
                                       F-9
<PAGE>   82
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
software developed or obtained for internal use and is evaluating the impact of
adopting SOP 98-1.
 
       In June 1998, the Financial Accounting Standards Board issued SFAS No.
133, Accounting for Derivative Instruments and Hedging Activities, effective for
fiscal years beginning after June 15, 1999. The new rules establish standards
requiring that all derivative financial instruments be recognized and measured
at fair value regardless of the purpose or intent for holding them. SFAS No. 133
also reduces certain previously required quantitative disclosures relating to
derivative financial instruments held or issued for trading purposes. The
adoption of SFAS No. 133 is not expected to have a significant impact on the
Company's consolidated financial statements.
 
3. SECURITIES OWNED AND SECURITIES SOLD, NOT YET PURCHASED
 
       Securities owned and securities sold, not yet purchased consisted of the
following:
 
<TABLE>
<CAPTION>
                                                                AS OF DECEMBER 31,
                                                              -----------------------
                                                                 1997         1998
                                                                  (IN THOUSANDS)
<S>                                                           <C>          <C>
Owned:
  Equities..................................................  $  560,039   $  619,039
  Options...................................................     976,520    1,104,754
                                                              ----------   ----------
                                                              $1,536,559   $1,723,793
                                                              ==========   ==========
Sold, Not Yet Purchased:
  Equities..................................................  $  311,051   $  249,243
  Options...................................................   1,073,796    1,032,391
                                                              ----------   ----------
                                                              $1,384,847   $1,281,634
                                                              ==========   ==========
</TABLE>
 
4. SHORT-TERM BORROWINGS
 
       GmbH has a credit facility with a bank under which GmbH borrows on a
revolving basis. The borrowing is collateralized with securities owned by GmbH.
Interest is variable based on STIBOR and payable monthly. The interest rate at
December 31, 1997 and 1998 was 5.3% and 4.3%, respectively.
 
                                      F-10
<PAGE>   83
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
5. INVESTMENTS IN PRIVATE INVESTMENT FUNDS
 
       HEM is the general partner or managing member of private investment funds
that engage in various equity investment strategies. The Company also owns
interests in these private investment funds. Summary financial information for
these private investment funds at December 31, 1997 and 1998, and for the years
then ended, was as follows:
 
<TABLE>
<CAPTION>
                                                                 1997       1998
                                                                 (IN THOUSANDS)
<S>                                                            <C>        <C>
Total assets................................................   $322,689   $584,323
Total liabilities...........................................    246,750    491,427
Total capital...............................................     75,939     92,896
Net income..................................................     25,211     17,205
Company's carrying value....................................     10,334     16,990
Company's pro-rata share of net income......................      2,100      1,606
</TABLE>
 
       The Company's pro-rata share of net income from the above private
investment funds for the year ended December 31, 1996 was approximately $1,499.
These amounts are reflected as principal transactions in the consolidated
statements of operations.
 
       HEM's fee income from these private investment funds consists of
incentive fees, management fees and administrative and technology fees, as
provided for in each respective investment fund agreement. HEM earned fees of
$6,675, $11,610, and $9,995 in 1996, 1997 and 1998, respectively. These amounts
are reflected as asset management fees in the consolidated statements of
operations.
 
6. REGULATORY MATTERS
 
       Hull is subject to the Securities and Exchange Commission's ("SEC")
Uniform Net Capital Rule (Rule 15c3-1), which requires the maintenance of
minimum net capital. Hull has elected to compute net capital using the
alternative method, permitted by the Rule, which requires that Hull maintain
minimum net capital, as defined, equal to $250. At December 31, 1998, Hull had
net capital and net capital requirements of approximately $19,300 and $250,
respectively.
 
       Certain other subsidiaries of Hull are also subject to capital adequacy
requirements of the countries in which they operate. As of December 31, 1998,
these subsidiaries were in compliance with their local capital adequacy
requirements.
 
       Advances, dividend payments and other equity distributions from regulated
subsidiaries may be restricted by the regulations of various regulatory
agencies. These restrictions may limit the amounts that these subsidiaries pay
as dividends or advances.
 
                                      F-11
<PAGE>   84
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
7. COMMITMENTS AND CONTINGENCIES
 
       The Company rents office space under leases containing real estate tax
and operating expense escalation clauses. The Company's principal lease is
cancelable upon ninety days written notice with a cancellation fee. At December
31, 1998, future non-cancelable minimum commitments under leases with remaining
terms exceeding one year were as follows (in thousands):
 
<TABLE>
<S>                                                           <C>
1999........................................................  $  901
2000........................................................     920
2001........................................................     864
2002........................................................     752
2003........................................................     772
Thereafter..................................................     152
                                                              ------
                                                              $4,361
                                                              ======
</TABLE>
 
       Rent expense for the years ended December 31, 1996, 1997 and 1998 was
approximately $1,153, $1,137 and $1,755, respectively.
 
       At December 31, 1997 and 1998, Hull was contingently liable in the amount
of $2,500 under bank letters of credit used in lieu of certain cash deposits.
 
8. DERIVATIVE FINANCIAL INSTRUMENTS
 
       Derivative contracts are financial instruments whose value is based upon
an underlying asset, index, reference rate or a combination of these factors.
The Company uses derivative financial instruments as part of its market-making
business and its overall risk management process. These financial instruments,
which generally include exchange-traded options and futures contracts and
forward contracts involving foreign currencies, expose the Company to varying
degrees of market, credit, and foreign currency risk. The Company records its
derivative trading activities at market or fair value and unrealized gains and
losses are recognized currently.
 
       The Company's market-making and trading activities expose the Company to
market risk. Market risk is the potential change in an instrument's value caused
by fluctuations in interest and currency exchange rates, equity prices, credit
spreads, or other risks.
 
       Credit risk arises from the possible inability of counterparties to meet
the terms of their contracts. Substantially all derivative financial instruments
entered into by the Company are exchange-traded. For exchange-traded contracts,
the clearing organization acts as the counterparty of specific transactions and,
therefore, bears the risk of delivery to and from counterparties to specific
positions. The credit risk associated with foreign currency forward contracts,
which are generally entered into by the Company with major international
dealers, is typically limited to the cost of replacing all contracts on which
the Company has recorded an unrealized gain.
 
                                      F-12
<PAGE>   85
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
       The fair values of derivative financial instruments at December 31, 1997
and 1998 were as follows:
 
<TABLE>
<CAPTION>
                                                           FAIR VALUES
                                        -------------------------------------------------
                                                 1997                      1998
                                        ----------------------   ------------------------
                                         ASSETS    LIABILITIES     ASSETS     LIABILITIES
<S>                                     <C>        <C>           <C>          <C>
Options...............................  $976,520   $1,073,796    $1,104,754   $1,032,391
</TABLE>
 
       The fair values of futures contracts are not disclosed. Fair values for
exchange-traded futures contracts are based on listed market prices. Futures
contracts are settled in cash daily and therefore the receivable or payable is
limited to one day's price move. The fair values of forward contracts at
December 31, 1997 and 1998 were not significant.
 
       The following table presents the average fair values of derivative
financial instruments for 1997 and 1998, calculated on a monthly basis:
 
<TABLE>
<CAPTION>
                                                       AVERAGE FAIR VALUES
                                        -------------------------------------------------
                                                 1997                      1998
                                        ----------------------   ------------------------
                                         ASSETS    LIABILITIES     ASSETS     LIABILITIES
<S>                                     <C>        <C>           <C>          <C>
Options...............................  $988,142   $  959,225    $1,378,609   $  841,207
</TABLE>
 
       The notional or contractual amounts of derivative financial instruments
at December 31, 1997 and 1998, were as follows, in millions:
 
<TABLE>
<CAPTION>
                                                                 NOTIONAL OR
                                                                 CONTRACTUAL
                                                                   AMOUNTS
                                                              -----------------
                                                               1997      1998
<S>                                                           <C>       <C>
Options purchased...........................................  $26,456   $30,364
Options written.............................................   26,618    25,969
Futures.....................................................      220     1,712
</TABLE>
 
       The gross notional or contractual amounts of derivative financial
instruments represent the volume of these transactions and not the amount
potentially subject to market risk.
 
       Substantially all revenues from principal transactions involve equities
and equity derivatives, including options and futures contracts.
 
9. AGREEMENTS WITH CLEARING BROKERS
 
       The Company has clearing agreements with two principal clearing brokers.
The Company earns interest income and/or incurs interest expense on balances due
from/to these clearing brokers. At December 31, 1997 and 1998, substantially all
of the Company's securities owned, securities sold, not yet purchased and
receivables/payables from/to clearing brokers are amounts held by or due from/to
these clearing brokers.
 
                                      F-13
<PAGE>   86
                          HULL TRADING COMPANY, L.L.C.
                                AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
10. BUSINESS SEGMENT AND GEOGRAPHIC INFORMATION
 
       The Company has not presented business segment data in accordance with
SFAS No. 131, Disclosures about Segments of an Enterprise and Related
Information, because it operates predominantly in one business segment, the
business of market-making and trading in securities.
 
       The Company's net revenues by geographic area are summarized below.
Amounts are determined principally by the respective legal jurisdiction of the
Company's subsidiaries.
 
<TABLE>
<CAPTION>
                                                          YEARS ENDED DECEMBER 31,
                                                        -----------------------------
                                                         1996       1997       1998
<S>                                                     <C>       <C>        <C>
United States.........................................  $59,987   $ 80,054   $ 44,639
Europe................................................    9,518     35,206     51,571
Asia..................................................      947        984      6,903
                                                        -------   --------   --------
Total.................................................  $70,452   $116,244   $103,113
                                                        =======   ========   ========
</TABLE>
 
       Income before income taxes included approximately $1,454, $15,674 and
$28,613 of earnings attributable to non-U.S. subsidiaries for 1996, 1997 and
1998, respectively.
 
11. SUBSEQUENT EVENTS
 
       During the period from January 1, 1999 to April 30, 1999, members made
contributions of $6,825 and distributions of $13,939.
 
       On January 1, 1999, Hull Trading Company, L.L.C., an Illinois limited
liability company, changed its name to Hull and Associates, L.L.C.
Simultaneously, a new wholly-owned entity, Hull Trading Company, L.L.C., a
Delaware limited liability company, was formed and substantially all of the U.S.
market-making and trading operations were transferred at book value from Hull
Trading Company, L.L.C. into Hull and Associates, L.L.C. At January 1, 1999,
after giving effect to this restructuring, the members' equity of Hull and
Associates, L.L.C. and Hull Trading Company, L.L.C. (a Delaware limited
liability company), was approximately $95,579 and $48,933, respectively.
 
                                      F-14
<PAGE>   87
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                         UNAUDITED INTERIM CONSOLIDATED
                            STATEMENTS OF OPERATIONS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                               THREE MONTHS ENDED
                                                                   MARCH 31,
                                                              --------------------
                                                               1998         1999
<S>                                                           <C>          <C>
REVENUES:
Principal transactions......................................  $20,395      $37,640
Asset management fees.......................................    2,736        1,099
Interest & dividends........................................   13,169       13,343
Other income................................................      394          119
                                                              -------      -------
  Total revenues............................................   36,694       52,201
Interest & dividend expense.................................   12,741       14,340
                                                              -------      -------
  Net revenues..............................................   23,953       37,861
 
OPERATING EXPENSES:
Compensation................................................    5,498        7,656
Exchange, clearing & brokerage..............................    5,138        4,894
Communications & technology.................................      825        1,032
Occupancy...................................................      374          676
Professional fees...........................................      660        1,115
Depreciation & amortization.................................      570          714
Other operating expenses....................................    2,046          708
                                                              -------      -------
  Total operating expenses..................................   15,111       16,795
                                                              -------      -------
Income before income taxes..................................    8,842       21,066
 
Foreign income taxes........................................    1,935        4,688
                                                              -------      -------
  Net income................................................  $ 6,907      $16,378
                                                              =======      =======
</TABLE>
 
                            See accompanying notes.
 
                                      F-15
<PAGE>   88
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                         UNAUDITED INTERIM CONSOLIDATED
                        STATEMENT OF FINANCIAL CONDITION
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                  AS OF
                                                              MARCH 31, 1999
                                                              --------------
<S>                                                           <C>
                                   ASSETS
Cash........................................................    $    7,033
Receivables from clearing brokers...........................        47,314
Securities owned............................................     1,382,754
Investments in private investment funds.....................        16,559
Property, leasehold improvements and equipment, net.........         7,372
Other assets................................................        19,009
                                                                ----------
                                                                $1,480,041
                                                                ==========
 
                      LIABILITIES AND MEMBERS' EQUITY
 
Short-term borrowings.......................................    $       --
Payables to clearing brokers................................       189,950
Securities sold, not yet purchased..........................     1,130,366
Compensation payable........................................        23,845
Income taxes payable........................................        17,790
Accrued expenses and other liabilities......................         8,847
                                                                ----------
                                                                 1,370,798
          Members' equity...................................       109,243
                                                                ----------
          Total liabilities and members' equity.............    $1,480,041
                                                                ==========
</TABLE>
 
                            See accompanying notes.
 
                                      F-16
<PAGE>   89
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                         UNAUDITED INTERIM CONSOLIDATED
                          STATEMENT OF MEMBERS' EQUITY
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                               THREE MONTHS
                                                                  ENDED
                                                              MARCH 31, 1999
                                                              --------------
<S>                                                           <C>
Balance at December 31, 1998................................     $ 95,579
Member contributions........................................        6,825
Member distributions........................................       (9,539)
Net income..................................................       16,378
                                                                 --------
Balance at March 31, 1999...................................     $109,243
                                                                 ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-17
<PAGE>   90
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                         UNAUDITED INTERIM CONSOLIDATED
                            STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                               THREE MONTHS ENDED
                                                                    MARCH 31,
                                                              ---------------------
                                                                1998        1999
<S>                                                           <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income..................................................  $   6,907   $  16,378
Adjustments to reconcile net income to net cash provided by
  operating activities:
  Depreciation and amortization.............................        570         714
  Equity in net (income) loss of private investment funds...       (538)        431
  Decrease (increase) in receivables from clearing
     brokers................................................     65,948     (23,191)
  Decrease (increase) in other assets.......................      2,508        (671)
  (Increase) decrease in securities owned...................   (819,801)    341,039
  Increase (decrease) to payables to clearing brokers.......     81,891    (164,208)
  Increase (decrease) in securities sold, not yet
     purchased..............................................    677,745    (151,268)
  (Decrease) in compensation payable........................    (11,840)     (5,822)
  Increase (decrease) in income taxes payable...............      1,618        (248)
  Increase in accrued expenses and other liabilities........      1,018         720
                                                              ---------   ---------
Net cash provided by operating activities...................      6,026      13,874
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, leasehold improvements and
  equipment.................................................       (708)       (958)
Investment in private investment funds......................     (1,500)         --
                                                              ---------   ---------
Net cash used in investing activities.......................     (2,208)       (958)
CASH FLOWS FROM FINANCING ACTIVITIES:
Member contributions........................................      5,231       6,825
Member distributions........................................     (5,329)     (5,324)
Decrease in short-term borrowings, net......................     (5,192)    (10,107)
                                                              ---------   ---------
Net cash used in investing activities.......................     (5,290)     (8,606)
                                                              ---------   ---------
Net increase (decrease) in cash.............................     (1,472)      4,310
Cash at beginning of period.................................      2,925       2,723
                                                              ---------   ---------
Cash at end of period.......................................  $   1,453   $   7,033
                                                              =========   =========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest......................................  $  10,933   $  13,666
Cash paid for foreign income taxes..........................        317       4,936
SUPPLEMENTAL DISCLOSURE OF NON-CASH OPERATING AND FINANCING
  ACTIVITY:
Compensation payable to members reflected as capital
  distributions.............................................      3,574       4,215
</TABLE>
 
                            See accompanying notes.
 
                                      F-18
<PAGE>   91
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
          NOTES TO UNAUDITED INTERIM CONSOLIDATED FINANCIAL STATEMENTS
 
1. BASIS OF PRESENTATION
 
       The unaudited interim consolidated financial statements of Hull and
Associates, L.L.C. (formerly Hull Trading Company, L.L.C., an Illinois limited
liability company) included herein have been prepared in accordance with
generally accepted accounting principles for interim financial information and
Rule 10-01 of Regulation S-X. Accordingly, they do not include all the
information and footnotes required by generally accepted accounting principles
for complete financial statements. In the opinion of management, the unaudited
interim consolidated financial statements reflect all adjustments, which are of
a normal recurring nature, necessary for a fair presentation of financial
position, results of operations and cash flows of the Company for the interim
periods presented and are not necessarily indicative of a full year's results.
 
       In preparing the unaudited interim consolidated financial statements,
management is required to make estimates and assumptions that affect the amounts
reported in the financial statements. Actual results could differ from those
estimates.
 
       These financial statements should be read in conjunction with the
Company's audited consolidated financial statements for the year ended December
31, 1998.
 
                                      F-19
<PAGE>   92
 
             UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
 
       The following unaudited pro forma consolidated statements of operations
and financial condition give effect to the reorganization into a corporation and
the offering contemplated hereby and the pro forma adjustments, as described in
the "Notes to Unaudited Pro Forma Consolidated Financial Statements".
 
       The pro forma adjustments are based upon available information and
certain assumptions that management believes are reasonable. The unaudited pro
forma consolidated financial information and accompanying notes should be read
in conjunction with the consolidated financial statements and notes thereto.
 
       The unaudited pro forma financial information does not purport to
represent the results of operations or the financial position of the Company
which actually would have occurred had the reorganization and offering been
previously consummated or project the results of operations or the financial
position of the Company for any future date or period.
 
                                      F-20
<PAGE>   93
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                        UNAUDITED PRO FORMA CONSOLIDATED
                            STATEMENTS OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                           YEARS ENDED DECEMBER 31, 1998
                                                  ------------------------------------------------
                                                                 PRO FORMA          PRO FORMA
                                                  HISTORICAL    ADJUSTMENTS    THE HULL GROUP INC.
<S>                                               <C>           <C>            <C>
REVENUES:
Principal transactions..........................   $ 96,234      $                  $ 96,234
Asset management fees...........................      9,995            --              9,995
Interest & dividends............................     45,489            --             45,489
Other income....................................      1,127            --              1,127
                                                   --------      --------           --------
  Total revenues................................    152,845            --            152,845
Interest & dividend expense.....................     49,732            --             49,732
                                                   --------      --------           --------
  Net revenues..................................    103,113            --            103,113
 
OPERATING EXPENSES:
Compensation....................................     25,400         8,776(c)          39,296
                                                                    5,120(d)
Exchange, clearing & brokerage..................     20,315            --             20,315
Communications & technology.....................      4,153            --              4,153
Occupancy.......................................      2,119            --              2,119
Professional fees...............................      2,897            --              2,897
Depreciation & amortization.....................      2,897            --              2,897
Other operating expenses........................      4,771            --              4,771
                                                   --------      --------           --------
  Total operating expenses......................     62,552        13,896             76,448
                                                   --------      --------           --------
Income before income taxes......................     40,561       (13,896)            26,665
 
Income taxes....................................     10,901            32(a)          10,933
                                                   --------      --------           --------
  Net income....................................   $ 29,660      $(13,928)          $ 15,732
                                                   ========      ========           ========
Weighted average shares outstanding:
  Basic and diluted.............................                                    $       (f)
                                                                                    ========
Net income per share:
  Basic and diluted.............................                                    $
                                                                                    ========
</TABLE>
 
                            See accompanying notes.
 
                                      F-21
<PAGE>   94
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                        UNAUDITED PRO FORMA CONSOLIDATED
                            STATEMENTS OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                          THREE MONTHS ENDED MARCH 31, 1999
                                                    ----------------------------------------------
                                                                  PRO FORMA         PRO FORMA
                                                    HISTORICAL   ADJUSTMENTS   THE HULL GROUP INC.
<S>                                                 <C>          <C>           <C>
REVENUES:
Principal transactions............................   $37,640       $    --           $37,640
Asset management fees.............................     1,099            --             1,099
Interest & dividends..............................    13,343            --            13,343
Other income......................................       119            --               119
                                                     -------       -------           -------
  Total revenues..................................    52,201            --            52,201
Interest & dividend expense.......................    14,340            --            14,340
                                                     -------       -------           -------
  Net revenues....................................    37,861            --            37,861
OPERATING EXPENSES:
Compensation......................................     7,656         4,833(c)         13,769
                                                                     1,280(d)
Exchange, clearing & brokerage....................     4,894            --             4,894
Communications & technology.......................     1,032            --             1,032
Occupancy.........................................       676            --               676
Professional fees.................................     1,115            --             1,115
Depreciation & amortization.......................       714            --               714
Other operating expenses..........................       708            --               708
                                                     -------       -------           -------
  Total operating expenses........................    16,795         6,113            22,908
                                                     -------       -------           -------
Income before income taxes........................    21,066        (6,113)           14,953
 
Income taxes......................................     4,688         1,443(a)          6,131
                                                     -------       -------           -------
  Net income......................................   $16,378       $(7,556)          $ 8,822
                                                     =======       =======           =======
Weighted average shares outstanding:
  Basic and diluted...............................                                   $      (f)
                                                                                     =======
Net income per share:
  Basic and diluted...............................                                   $
                                                                                     =======
</TABLE>
 
                            See accompanying notes.
 
                                      F-22
<PAGE>   95
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                        UNAUDITED PRO FORMA CONSOLIDATED
                       STATEMENTS OF FINANCIAL CONDITION
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                  AS OF MARCH 31, 1999
                                                         --------------------------------------
                                                                                     PRO FORMA
                                                                       PRO FORMA      THE HULL
                                                         HISTORICAL   ADJUSTMENTS    GROUP INC.
<S>                                                      <C>          <C>            <C>
                        ASSETS
Cash...................................................  $    7,033    $  (7,033)(e) $       --
Receivables from clearing brokers......................      47,314      (11,986)(e)     35,328
Securities owned.......................................   1,382,754            -      1,382,754
Investments in private investment funds................      16,559           --         16,559
Property, leasehold improvements and equipment, net....       7,372           --          7,372
Other assets...........................................      19,009        9,776(b)      28,785
                                                         ----------    ---------     ----------
                                                         $1,480,041    $  (9,243)    $1,470,798
                                                         ==========    =========     ==========
 
LIABILITIES AND MEMBERS' EQUITY/
STOCKHOLDERS' EQUITY
 
Short-term borrowings..................................  $       --    $      --     $       --
Payables to clearing brokers...........................     189,950           --        189,950
Securities sold, not yet purchased.....................   1,130,366           --      1,130,366
Compensation payable...................................      23,845           --         23,845
Income taxes payable...................................      17,790           --         17,790
Accrued expenses and other liabilities.................       8,847           --          8,847
                                                         ----------    ---------     ----------
                                                          1,370,798           --      1,370,798
Members' equity........................................     109,243      (90,224)
                                                                         (19,019)(e)         --
Stockholders' equity:
  Common stock, par value $.01 per share; 100,000
     shares authorized,           shares issued and
     outstanding.......................................          --           --             --
  Additional paid-in capital...........................          --        9,776(b)     116,000
                                                                 --       16,000(d)          --
                                                                 --       90,224             --
  Retained earnings....................................          --           --             --
  Unearned compensation................................          --      (16,000)(d)    (16,000)
                                                         ----------    ---------     ----------
          Total stockholders' equity...................                  100,000        100,000
                                                         ----------    ---------     ----------
          Total liabilities and members'
            equity/stockholders' equity................  $1,480,041    $  (9,243)    $1,470,798
                                                         ==========    =========     ==========
</TABLE>
 
                            See accompanying notes.
 
                                      F-23
<PAGE>   96
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                          NOTES TO UNAUDITED PRO FORMA
                       CONSOLIDATED FINANCIAL STATEMENTS
 
1. REORGANIZATION AND INITIAL PUBLIC OFFERING
 
       Prior to the initial public offering (the "Offering"), Hull and
Associates, L.L.C. will merge into The Hull Group Inc. ("The Hull Group") in
exchange for            shares of The Hull Group common stock, representing all
of its issued and outstanding shares of common stock (the "Reorganization"). The
Hull Group is a newly formed company, incorporated in May 1999 in the state of
Delaware, with no significant assets or liabilities and which has not engaged in
any substantial business activities prior to the Offering. The Hull Group
intends to sell            shares of common stock as part of the Offering. For
pro forma purposes, the common stock offering and, where applicable, the related
transactions reflect an assumed initial public offering price of $     per
share.
 
2. PRO FORMA ADJUSTMENTS
 
  (a)     Provision for Income Taxes.  Adjustment to reflect additional income
          taxes related to the conversion from a limited liability company
          (L.L.C.) to a "C" corporation under SFAS No. 109 at an effective tax
          rate of 41%.
 
  (b)     Deferred Tax Asset.  Adjustment to reflect the tax benefit of the
          liability for member distributions recorded prior to the conversion to
          a "C" corporation.
 
  (c)     Compensation, excluding IPO Awards.  Adjustment for additional
          compensation expense to reflect incentive-based compensation to
          members previously reflected as distributions of members' equity.
 
  (d)     IPO Awards.  Adjustment to reflect the amortization of the      shares
          of restricted stock awarded to employees under the 1999 Special
          Restricted Stock Plan ("the Plan"). The restricted stock will have a
          value of $16 million, based on the estimated initial public offering
          of the stock, approximately 32% of which will be amortized as a
          non-cash expense in the year of grant. The remaining amortization will
          occur over the four years following the year of grant. The restricted
          stock awarded will be accounted for as a capital contribution to the
          Company as the Plan is being funded by shares owned by the principal
          stockholder.
 
          The stock options to purchase            shares of common stock
          awarded to employees and directors will be accounted for pursuant to
          Accounting Principles Board Opinion ("APB") No. 25, as permitted by
          paragraph 5 of SFAS No. 123. Since these options will have no
          intrinsic value as of the date of grant, no compensation expense will
          be recognized pursuant to APB No. 25. The estimated fair value of
          these options on the date of grant is $           using a
          Black-Scholes option pricing model. If SFAS No. 123 had been applied,
          compensation expense of $           and $           would have been
          included in the pro forma consolidated statements of operations for
          the year ended December 31, 1998 and the three months ended March 31,
          1999, respectively.
 
                                      F-24
<PAGE>   97
 
                          HULL AND ASSOCIATES, L.L.C.
                                AND SUBSIDIARIES
 
                          NOTES TO UNAUDITED PRO FORMA
                CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
  (e)     Cash Distributions.  Adjustment to reflect certain anticipated cash
          distributions to the members of Hull and Associates, L.L.C. prior to
          the Offering in accordance with the Company's limited liability
          company operating agreement, including distributions for member income
          taxes related to the Company's earnings. Such distributions will
          reduce stockholders' equity at the date of the reorganization, and
          prior to the offering, to $100 million.
 
  (f)     Pro Forma Common Shares.  Basic and diluted common shares outstanding
          of            prior to the Offering includes the common stock.
 
                                      F-25
<PAGE>   98
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                    , 1999
 
                                  [HULL LOGO]
 
                              THE HULL GROUP INC.
 
                                       SHARES OF COMMON STOCK
 
                            ------------------------
 
                                   PROSPECTUS
                            ------------------------
 
                          DONALDSON, LUFKIN & JENRETTE
 
                              ABN AMRO ROTHSCHILD
                      A DIVISION OF ABN AMRO INCORPORATED
 
                 PUTNAM, LOVELL, DE GUARDIOLA & THORNTON, INC.
 
- --------------------------------------------------------------------------------
 
We have not authorized any dealer, salesperson or other person to give you
written information other than this prospectus or to make representation as to
matters not stated in this prospectus. You must not rely on unauthorized
information. This prospectus is not an offer to sell these securities or our
solicitation of your offer to buy the securities in any jurisdiction where that
would not be permitted or legal. Neither the delivery of this prospectus nor any
sales made hereunder after the date of this prospectus shall create an
implication that the information contained herein or the affairs of The Hull
Group Inc. have not changed since the date hereof.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
Until                  , 1999, the date which is 25 days after the date of this
prospectus, all dealers effecting transactions in these shares of common stock
may be required to deliver a prospectus. This is in addition to a dealer's
obligation to deliver a prospectus when acting as an underwriter and with
respect to an unsold allotment or subscription.
- --------------------------------------------------------------------------------
<PAGE>   99
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
       The following table shows the expenses to be incurred in connection with
the offering described in this registration statement, all of which will be paid
by the registrant. All amounts are estimates, other than the SEC registration
fee, the NASD filing fee and the Nasdaq listing fee.
 
<TABLE>
<S>                                                            <C>
SEC registration fee........................................   $   31,970
NASD filing fee.............................................       12,000
Nasdaq listing fee..........................................      100,000
Accounting fees and expenses................................      300,000
Legal fees and expenses.....................................      300,000
Printing and engraving expenses.............................      200,000
Transfer agent's fees.......................................        7,500
Blue sky fees and expenses..................................        5,000
Miscellaneous...............................................       43,530
                                                               ----------
  Total.....................................................   $1,000,000
                                                               ==========
</TABLE>
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
       Section 102 of the Delaware General Corporation Law allows a corporation
to eliminate the personal liability of directors of a corporation to the
corporation or its stockholders for monetary damages for a breach of a fiduciary
duty as a director, except where the director (1) breached his duty of loyalty,
(2) failed to act in good faith, engaged in intentional misconduct or knowingly
violated a law, (3) authorized the payment of a dividend or approved a stock
repurchase in violation of Section 174 of the Delaware General Corporation Law
or (4) obtained an improper personal benefit from a transaction. The
registrant's Certificate of Incorporation provides for this limitation of
liability.
 
       Section 145 of the Delaware General Corporation Law provides that a
corporation may indemnify any person who was or is a party or is threatened to
be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative, other than
an action by or in the right of the corporation, by reason of the fact that the
person is or was a director, officer, employee or agent of the corporation or is
or was serving at the corporation's request as a director, officer, employee or
agent of another corporation, partnership, joint venture, trust or other
enterprise, against expenses, including attorneys' fees, judgments, fines and
amounts paid in settlement of the actually and reasonably incurred by the person
in connection with the action, suit or proceeding if the person acted in good
faith and in a manner the person reasonably believed to be in or not opposed to
the best interests of the corporation, and with respect to any criminal action
or proceeding, had no reasonable cause to believe the person's conduct was
unlawful. The power to indemnify applies to actions brought by or in the right
of the corporation as well, but only to the extent of expenses, including
attorneys' fees but excluding judgments, fines and amounts paid in settlement,
actually and reasonably incurred by the person in connection with the defense or
settlement of the action or suit. And with the further limitation that in these
actions no indemnification shall be made in the event of any adjudication of
negligence or misconduct in
 
                                      II-1
<PAGE>   100
 
the performance of his duties to the corporation, unless a court believes that
in light of all the circumstances indemnification should apply. The Registrant's
Certificate of Incorporation and Bylaws require it to indemnify and advance
expenses to its directors and officers to the fullest extent permitted by the
Delaware General Corporation Law. The registrant will indemnify and advance
expenses to its directors or officers in connection with an action initiated by
that person only if the action was authorized by the registrant's Board. The
registrant's Certificate of Incorporation and Bylaws also permit it to indemnify
and advance expenses to its employees and agents, if its Board approves the
indemnification and advancement.
 
       Section 145 of the Delaware General Corporation Law permits a corporation
to purchase and maintain insurance on behalf of any person who is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise
against any liability asserted against that person and incurred by that person
in any similar capacity, or arising out of that person's status, whether or not
the corporation would have the corporation to indemnify the person against that
liability. The Registrant's Bylaws permit it to purchase and maintain insurance
for its directors, officers, employees and agents, notwithstanding whether it
can indemnify these persons against the claims under the Delaware General
Corporation Law. The Registrant intends to purchase director and officer
liability insurance for its directors and officers.
 
       Section 174 of the Delaware General Corporation Law provides, among other
things, that in the case of any negligent or willful approval of an unlawful
payment of dividends or an unlawful stock purchase or redemption, the directors
under whose administration the unlawful action may happen, may be held jointly
and severally liable, at any time within six years of the unlawful dividend,
purchase or redemption, to the corporation, and to its creditors in the event of
dissolution or insolvency, to the full amount of the unlawful dividend, purchase
or redemption. A director who was either absent when the unlawful actions were
approved or dissented at the time, may avoid liability by causing his or her
dissent to these actions to be entered in the books containing the minutes of
the meetings of the board of directors at the time the action occurred or
immediately after the absent director receives notice of the unlawful acts.
 
       The proposed form of underwriting agreement filed as Exhibit 1.1 to this
registration statement provides for indemnification of directors and officers of
the registrant by the underwriters against some liabilities.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES.
 
       Since January 1, 1996, the registrant's predecessor has sold the
following securities without registration under the Securities Act of 1933:
 
               In 1996, Hull and Associates, L.L.C., which was formerly known as
       Hull Trading Company, L.L.C., the "LLC", sold membership interests to 15
       employees for an aggregate purchase price of $3,672,000.
 
               In 1997, the LLC sold membership interests to 19 employees for an
       aggregate purchase price of $5,014,000.
 
               In 1998, the LLC sold membership interests to 24 employees for an
       aggregate purchase price of $5,231,000.
 
               In 1999, the LLC sold membership interests to 23 employees for an
       aggregate purchase price of $6,825,000.
 
                                      II-2
<PAGE>   101
 
All of these sales of LLC membership interests were made in reliance on the
exemption from registration under Section 4(2) of the Securities Act of 1933 as
transactions not involving a public offering.
 
       Immediately before the closing of this offering, the LLC will merge into
the registrant. Each member of the LLC will receive shares of the registrant's
common stock in exchange for his or her membership interests, at a rate of
shares per percentage membership interest, for an aggregate of         shares of
common stock.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
       See the exhibit index, which is incorporated herein by reference.
 
ITEM 17. UNDERTAKINGS.
 
       (a) The undersigned registrant hereby undertakes to provide to the
underwriters at the closing specified in the underwriting agreements,
certificates in the denominations and registered in the names as are required by
the underwriters to permit prompt delivery to each purchaser.
 
       (b) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers, and controlling
persons of the registrant under the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission the indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities, other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit, or proceeding, is asserted by the
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether the indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
the issue.
 
       (c) The undersigned registrant hereby undertakes that:
 
               (1) For purposes of determining any liability under the
       Securities Act of 1933, the information omitted from the form of
       prospectus filed as part of this registration statement in reliance upon
       Rule 430A and contained in a form of prospectus filed by the registrant
       under Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be
       deemed to be part of this registration statement as of the time it was
       declared effective.
 
               (2) For the purpose of determining any liability under the
       Securities Act of 1933, each post-effective amendment that contains a
       form of prospectus shall be deemed to be a new registration statement
       relating to the securities offered therein, and the offering of such
       securities at that time shall be deemed to be the initial bona fide
       offering thereof.
 
                                      II-3
<PAGE>   102
 
                                   SIGNATURES
 
       UNDER THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT HAS
DULY CAUSED THIS REGISTRATION STATEMENT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED, THEREUNTO DULY AUTHORIZED, IN THE CITY OF CHICAGO, STATE OF
ILLINOIS ON MAY 12, 1999.
 
                                            THE HULL GROUP INC.
 
                                            By:      /s/ M. BLAIR HULL
                                              ----------------------------------
                                                        M. Blair Hull
                                                 Chairman and Chief Executive
                                                            Officer
 
       UNDER THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS REGISTRATION
STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE CAPACITIES AND ON THE
DATES INDICATED BELOW.
 
<TABLE>
<CAPTION>
                      SIGNATURE                                      TITLE                        DATE
<C>                                                    <S>                                  <C>
 
                  /s/ M. BLAIR HULL                    Chairman of the Board, Chief              May 12, 1999
- -----------------------------------------------------    Executive Officer (Principal
                    M. Blair Hull                        Executive Officer); Director
 
             /s/ ARTHUR S. MARGULIS, JR.               President and Director                    May 12, 1999
- -----------------------------------------------------
               Arthur S. Margulis, Jr.
 
                /s/ TIMOTHY J. HUNTER                  Executive Vice President and Chief        May 12, 1999
- -----------------------------------------------------    Financial Officer (Principal
                  Timothy J. Hunter                      Financial and Accounting
                                                         Officer)
</TABLE>
 
                                      II-4
<PAGE>   103
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
      EXHIBIT NO.                                DESCRIPTION
<C>                      <S>
 
          1.1            -- Form of Underwriting Agreement.*
          2.1            -- Agreement of Merger, dated as of             , 1999, of
                            Hull Trading Company, L.L.C. with and into The Hull Group
                            Inc.*
          3.1            -- Certificate of Incorporation of The Hull Group Inc.
          3.2            -- By-laws of The Hull Group Inc.
          4.1            -- Form of Common Stock Certificate.*
          5.1            -- Opinion of Mayer, Brown & Platt, regarding legality of
                            securities being registered.*
         10.1            -- Form of Standard Option Agreement between Merrill Lynch
                            Professional Clearing Corp. and Hull Trading Company,
                            L.L.C.*
         10.2            -- Form of Customer Agreement between Merrill Lynch
                            Professional Clearing Corp. and Hull Trading Company,
                            L.L.C.*
         10.3            -- Clearing, Credit Facility and Securities Borrowing
                            Agreement between MeesPierson N.V. and Hull Trading
                            GmbH.*
         10.4            -- Terms of Business Agreement between MeesPierson ICS
                            Limited and Hull Trading Asia Limited.*
         10.5            -- Customer Agreement between MeesPierson Futures Clearing
                            Services (Asia) Limited and Hull Trading Asia Limited.*
         21.1            -- List of subsidiaries of The Hull Group Inc.
         23.1            -- Consent of Ernst & Young LLP.
         23.2            -- Consent of Schultz & Chez, L.L.P.
         23.3            -- Consent of Mayer, Brown & Platt (included in Exhibit
                            5.1).
         27.1            -- Financial Data Schedule.
</TABLE>
 
- ------------------------------
 
*  To be filed by amendment.

<PAGE>   1
                                                                     EXHIBIT 3.1


                          CERTIFICATE OF INCORPORATION
                                       OF
                               THE HULL GROUP INC.


         I, the undersigned, for the purposes of incorporating and organizing a
corporation under the General Corporation Law of the State of Delaware, do
execute this Certificate of Incorporation and do hereby certify as follows:

         FIRST:  The name of the corporation is The Hull Group Inc.

         SECOND: The address of the corporation's registered office in the State
of Delaware is 1209 Orange Street, in the City of Wilmington, County of New
Castle. The name of its registered agent at such address is The Corporation
Trust Company.

         THIRD: The purpose of the corporation is to engage in any lawful act or
activity for which corporations may be organized under the General Corporation
Law of the State of Delaware.

         FOURTH: The total number of shares of all classes of stock which the
Company shall have authority to issue is 125,000,000, divided into 100,000,000
shares of common stock of the par value of $0.01 per share, and 25,000,000
shares of preferred stock of the par value of $0.01 per share.

         The Board of Directors is authorized, subject to limitations prescribed
by law and the provisions of Article FOURTH, to provide for the issuance of the
shares of preferred stock in series, and by filing a certificate pursuant to the
applicable law of the State of Delaware, to establish from time to time the
number of shares to be included in each such series, and to fix the designation,
powers, preferences and rights of the shares of each such series and the
qualifications, limitations or restrictions thereof.

         The authority of the Board with respect to each series shall include,
but not be limited to, determination of the following:

              (a) The number of shares constituting that series and the
         distinctive designation of that series;

              (b) The dividend rate on the shares of that series, whether
         dividends shall be cumulative, and, if so, from which date or dates,
         and the relative rights of priority, if any, of payment of dividends on
         shares of that series;

              (c) Whether that series shall have voting rights, in addition to
         the voting rights provided by law, and, if so, the terms of such voting
         rights;


<PAGE>   2



              (d) Whether that series shall have conversion privileges, and, if
         so, the terms and conditions of such conversion, including provision
         for adjustment of the conversion rate in such events as the Board of
         Directors shall determine;

              (e) Whether or not the shares of that series shall be redeemable,
         and, if so, the terms and conditions of such redemption, including the
         date or dates upon or after which they shall be redeemable, and the
         amount per share payable in case of redemption, which amount may vary
         under different conditions and at different redemption dates;

              (f) Whether that series shall have a sinking fund for the
         redemption or purchase of shares of that series, and, if so, the terms
         and amount of such sinking fund;

              (g) The rights of the shares of that series in the event of
         voluntary or involuntary liquidation, dissolution or winding up of the
         corporation, and the relative rights of priority, if any, of payment of
         shares of that series; and

              (h) Any other relative rights, preferences and limitations of that
         series.

         Dividends on outstanding shares of preferred stock shall be paid or
declared and set apart for payment before any dividends shall be paid or
declared and set apart for payment on the shares of common stock with respect to
the same dividend period.

         If upon any voluntary or involuntary liquidation, dissolution or
winding up of the corporation, the assets available for distribution to holders
of shares of preferred stock of all series shall be insufficient to pay such
holders the full preferential amount to which they are entitled, then such
assets shall be distributed ratably among the shares of all series of preferred
stock in accordance with the respective preferential amounts (including unpaid
cumulative dividends, if any) payable with respect thereto.

         FIFTH: Holders of common stock and preferred stock of the corporation
shall have no preemptive rights to purchase or subscribe for any class of stock
of the corporation or securities convertible into or carrying a right to
purchase or subscribe for any class of stock of the corporation, whether now or
hereafter authorized.

         SIXTH: The incorporator of the corporation is Michael J. Perlowski,
whose mailing address is 190 South LaSalle Street, Chicago, Illinois 60603.

         SEVENTH: Unless and except to the extent that the By-laws of the
corporation shall so require, the election of directors of the corporation need
not be by written ballot.

         EIGHTH: The number of directors constituting the entire Board shall be
not less than three nor more than 15 as fixed from time to time by vote of a
majority of the entire Board; provided, however, that the number of directors
shall not be reduced so as to shorten the term of



                                        2

<PAGE>   3



any director at the time in office; and provided, further, that the number of
directors constituting the entire Board shall be two until otherwise fixed by a
majority of the entire Board.

         The Board of Directors shall be divided into three classes, as nearly
equal in numbers as the then total number of directors constituting the entire
Board permits with the term of office of one class expiring each year. At the
annual meeting of stockholders in 2000, directors of the first class shall be
elected to hold office for a term expiring at the next succeeding annual
meeting, directors of the second class shall be elected to hold office for a
term expiring at the second succeeding annual meeting and directors of the third
class shall be elected to hold office for a term expiring at the third
succeeding annual meeting. Any vacancies in the Board of Directors for any
reason, and any directorships resulting from any increase in the number of
directors, may be filled by the Board of Directors, acting by a majority of the
directors then in office, although less than a quorum, and any directors so
chosen shall hold office until the next election of the class for which such
directors shall have been chosen and until their successors shall be elected and
qualified. Notwithstanding the foregoing, and except as otherwise required by
law, whenever the holders of any one or more series of preferred stock shall
have the right, voting separately as a class, to elect one or more directors of
the corporation, the terms of the director or directors elected by such holders
shall expire at the next succeeding annual meeting of stockholders. Subject to
the foregoing, at each annual meeting of stockholders, the successors to the
class of directors whose term shall then expire shall be elected to hold office
for a term expiring at the third succeeding annual meeting.

         Notwithstanding any other provisions of this Certificate of
Incorporation or the By-Laws of the corporation (and notwithstanding the fact
that some lesser percentage may be specified by law, this Certificate of
Incorporation or the By-Laws of the corporation), any director or the entire
Board of Directors of the corporation may be removed at any time, but only for
cause and only by the affirmative vote of the holders of 80% or more of the
outstanding shares of capital stock of the corporation entitled to vote
generally in the election of directors (considered for this purpose as one
class) cast at a meeting of the stockholders called for that purpose.
Notwithstanding the foregoing, and except as otherwise required by law, whenever
the holders of any one or more series of preferred stock shall have the right,
voting separately as a class, to elect one or more directors of the corporation,
the provisions of section (c) of this Article shall not apply with respect to
the director or directors elected by such holders of preferred stock.

         The provisions set forth in this Article may not be amended, altered,
changed or repealed in any respect, nor may any provision be adopted which is
inconsistent with this Article unless such action is approved by the affirmative
vote of the holders of 80% or more of the outstanding shares of capital stock of
the corporation entitled to vote on the matter.

         NINTH: Both the Board of Directors and the stockholders shall have the
power to make, adopt, amend, alter, change or repeal the By-laws of the
corporation; provided, however, that the stockholders of the corporation shall
not make, adopt, amend, alter, change or repeal the By-laws




                                       3
<PAGE>   4

except by the affirmative vote of the holders of 80% or more of the outstanding
shares of capital stock entitled to vote on the matter.

         The provisions set forth in this Article may not be amended, altered,
changed or repealed in any respect, nor may any provision be adopted which is
inconsistent with this Article unless such action is approved by the affirmative
vote of the holders of 80% or more of the outstanding shares of capital stock
entitled to vote on the matter.

         TENTH: A director of the corporation shall not be liable to the
corporation or its stockholders for monetary damages for breach of fiduciary
duty as a director, except to the extent such exemption from liability or
limitation thereof is not permitted under the General Corporation Law of the
State of Delaware as the same exists or may hereafter be amended. Any amendment,
alteration, change or repeal of the foregoing sentence shall not adversely
affect any right or protection of a director of the corporation hereunder in
respect of any act or omission occurring prior to the time of such amendment,
alteration, change or repeal.

         ELEVENTH: The corporation shall indemnify, to the fullest extent
permitted by applicable law as it presently exists or may hereafter be amended,
any current or former director or officer of the corporation, and may indemnify
any current or former employee or agent of the corporation, who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (including an action, suit or proceeding by or in the right of the
corporation) by reason of the fact that such person is or was a director,
officer, employee or agent of the corporation or a fiduciary within the meaning
of the Employee Retirement Income Security Act of 1974 with respect to an
employee benefit plan of the corporation, or is or was serving at the request of
the corporation as a director, officer, employee or agent, or a fiduciary with
respect to an employee benefit plan, of another corporation or of a partnership,
joint venture, trust, limited liability company or other enterprise, against
expenses (including attorney's fees), judgments, fines and amounts paid in
settlement actually and reasonably incurred by such person in connection with
such action, suit or proceeding. The corporation shall pay all expenses
(including attorneys' fees) incurred by any such current or former director or
officer of the corporation, and may pay all expenses (including attorneys' fees)
incurred by any such other person, in defending any such action, suit or
proceeding in advance of its final disposition if such person furnishes the
corporation (a) a written statement of such person's good faith belief that such
person is entitled to indemnification and (b) an undertaking by or on behalf of
such person to repay such amount if it shall ultimately be determined that such
person is not entitled to be indemnified by the corporation. The corporation
shall not be required to indemnify or advance expenses to any such person (a) in
connection with an action, suit or proceeding (or part thereof) initiated by
such person unless such action, suit or proceeding (or part thereof) was
authorized by the Board of Directors of the corporation; (b) for any amounts
paid in settlement of any such action, suit or proceeding without the prior
written consent of the Board of Directors of the corporation; or (c) if such
person did not act in good faith and in a manner such person reasonably believed
to be in or not opposed to the best interests of the corporation. Any amendment,
alteration, change or



                                       4
<PAGE>   5

repeal of this Article shall not adversely affect any right or protection of any
person hereunder in respect of any act or omission occurring prior to the time
of such amendment, alteration, change or repeal. The rights conferred on any
person by this Article shall not be deemed exclusive of any other rights to
which those seeking indemnification or advancement of expenses may be entitled
under any statute, By-law, agreement, vote of stockholders or directors or any
other document or arrangement.

         TWELFTH: The corporation reserves the right at any time, and from time
to time, to amend, alter, change or repeal any provision contained in this
Certificate of Incorporation, and other provisions authorized by the laws of the
State of Delaware at the time in force may be added or inserted, in the manner
now or hereafter prescribed by law; and all rights, preferences and privileges
of whatsoever nature conferred upon stockholders, directors or any other persons
whomsoever by and pursuant to this Certificate of Incorporation in its present
form or as hereafter amended are granted subject to the rights reserved in this
Article.

         THIRTEENTH: The powers of the incorporator are to terminate upon the
filing of this Certificate of Incorporation. The name and mailing address of the
persons who are to serve as the initial directors of the corporation until the
annual meeting of stockholders of the corporation in 2000, or until their
successors are elected and qualify, are:

         M. Blair Hull                      Arthur S. Margulis, Jr.
         311 South Wacker Drive             311 South Wacker Drive
         14th Floor                         14th Floor
         Chicago, Illinois 60606            Chicago, Illinois  60606

         The undersigned incorporator hereby acknowledges that the foregoing
Certificate of Incorporation is his act and deed on this 6th day of May, 1999.


                                               /s/  Michael J. Perlowski
                                              ----------------------------------
                                              Michael J. Perlowski, Incorporator


                                        5


<PAGE>   1
                                                                     EXHIBIT 3.2

                                    BY-LAWS
                                       OF
                              THE HULL GROUP INC.


                                   ARTICLE I

                                  Stockholders

         Section 1.1. Annual Meetings. An annual meeting of stockholders shall
be held for the election of directors at such date, time and place, either
within or without the State of Delaware, as may be designated by resolution of
the Board of Directors from time to time. Any other proper business may be
transacted at the annual meeting.

         Section 1.2. Special Meetings. Special meetings of stockholders for
any purpose or purposes may be called at any time by the Board of Directors, or
by a committee of the Board of Directors that has been duly designated by the
Board of Directors and whose powers and authority, as expressly provided in a
resolution of the Board of Directors, include the power to call such meetings,
but such special meetings may not be called by any other person or persons.

         Section 1.3. Notice of Meetings. Whenever stockholders are required or
permitted to take any action at a meeting, a written notice of the meeting
shall be given that shall state the place, date and hour of the meeting and, in
the case of a special meeting, the purpose or purposes for which the meeting is
called. Unless otherwise provided by law, the certificate of incorporation or
these by-laws, the written notice of any meeting shall be given not less than
ten nor more than sixty days before the date of the meeting to each stockholder
entitled to vote at such meeting. If mailed, such notice shall be deemed to be
given when deposited in the United States mail, postage prepaid, directed to
the stockholder at his address as it appears on the records of the corporation.

         Section 1.4. Adjournments. Any meeting of stockholders, annual or
special, may adjourn from time to time to reconvene at the same or some other
place, and notice need not be given of any such adjourned meeting if the time
and place thereof are announced at the meeting at which the adjournment is
taken. At the adjourned meeting the corporation may transact any business which
might have been transacted at the original meeting. If the adjournment is for
more than thirty days, or if after the adjournment a new record date is fixed
for the adjourned meeting, notice of the adjourned meeting shall be given to
each stockholder of record entitled to vote at the meeting.


<PAGE>   2

         Section 1.5. Quorum. Except as otherwise provided by law, the
certificate of incorporation or these by-laws, at each meeting of stockholders
the presence in person or by proxy of the holders of shares of stock having a
majority of the votes which could be cast by the holders of all outstanding
shares of stock entitled to vote at the meeting shall be necessary and
sufficient to constitute a quorum. In the absence of a quorum, the stockholders
so present may, by majority vote, adjourn the meeting from time to time in the
manner provided in Section 1.4 of these by-laws until a quorum shall attend.
Shares of its own stock belonging to the corporation or to another corporation,
if a majority of the shares entitled to vote in the election of directors of
such other corporation is held, directly or indirectly, by the corporation,
shall neither be entitled to vote nor be counted for quorum purposes; provided,
however, that the foregoing shall not limit the right of the corporation to
vote stock, including but not limited to its own stock, held by it in a
fiduciary capacity.

         Section 1.6. Organization. Meetings of stockholders shall be presided
over by the Chairman of the Board, if any, or in his absence by the Vice
Chairman of the Board, if any, or in his absence by the President, or in his
absence by a Vice President, or in the absence of the foregoing persons by a
chairman designated by the Board of Directors, or in the absence of such
designation by a chairman chosen at the meeting. The Secretary shall act as
secretary of the meeting, but in his absence the chairman of the meeting may
appoint any person to act as secretary of the meeting. The chairman of the
meeting shall announce at the meeting of stockholders the date and time of the
opening and the closing of the polls for each matter upon which the
stockholders will vote.

         Section 1.7. Voting; Proxies. Except as otherwise provided by the
certificate of incorporation, each stockholder entitled to vote at any meeting
of stockholders shall be entitled to one vote for each share of stock held by
him which has voting power upon the matter in question. Each stockholder
entitled to vote at a meeting of stockholders or to express consent or dissent
to corporate action in writing without a meeting may authorize another person
or persons to act for him by proxy, but no such proxy shall be voted or acted
upon after three years from its date, unless the proxy provides for a longer
period. A proxy shall be irrevocable if it states that it is irrevocable and
if, and only as long as, it is coupled with an interest sufficient in law to
support an irrevocable power. A stockholder may revoke any proxy which is not
irrevocable by attending the meeting and voting in person or by filing an
instrument in writing revoking the proxy or by delivering a proxy in accordance
with applicable law bearing a later date to the Secretary of the corporation.
Voting at meetings of stockholders need not be by written ballot and, unless
otherwise required by law, need not be conducted by inspectors of election
unless so determined by the holders of shares of stock having a majority of the
votes which could be cast by the holders of all outstanding shares of stock
entitled to vote thereon which are present in person or by proxy at such
meeting. At all meetings of stockholders for the election of directors a
plurality of the votes cast shall be sufficient to elect. All other elections
and questions shall, unless otherwise provided by law, the certificate of
incorporation or these by-laws, be decided by


                                       2
<PAGE>   3

the vote of the holders of shares of stock having a majority of the votes which
could be cast by the holders of all shares of stock outstanding and entitled to
vote thereon.

         Section 1.8. Fixing Date for Determination of Stockholders of Record.
In order that the corporation may determine the stockholders entitled to notice
of or to vote at any meeting of stockholders or any adjournment thereof, or to
express consent to corporate action in writing without a meeting, or entitled
to receive payment of any dividend or other distribution or allotment of any
rights, or entitled to exercise any rights in respect of any change, conversion
or exchange of stock or for the purpose of any other lawful action, the Board
of Directors may fix a record date, which record date shall not precede the
date upon which the resolution fixing the record date is adopted by the Board
of Directors and which record date: (1) in the case of determination of
stockholders entitled to vote at any meeting of stockholders or adjournment
thereof, shall, unless otherwise required by law, not be more than sixty nor
less than ten days before the date of such meeting; (2) in the case of
determination of stockholders entitled to express consent to corporate action
in writing without a meeting, shall not be more than ten days from the date
upon which the resolution fixing the record date is adopted by the Board of
Directors; and (3) in the case of any other action, shall not be more than
sixty days prior to such other action. If no record date is fixed: (1) the
record date for determining stockholders entitled to notice of or to vote at a
meeting of stockholders shall be at the close of business on the day next
preceding the day on which notice is given, or, if notice is waived, at the
close of business on the day next preceding the day on which the meeting is
held; (2) the record date for determining stockholders entitled to express
consent to corporate action in writing without a meeting when no prior action
of the Board of Directors is required by law, shall be the first date on which
a signed written consent setting forth the action taken or proposed to be taken
is delivered to the corporation in accordance with applicable law, or, if prior
action by the Board of Directors is required by law, shall be at the close of
business on the day on which the Board of Directors adopts the resolution
taking such prior action; and (3) the record date for determining stockholders
for any other purpose shall be at the close of business on the day on which the
Board of Directors adopts the resolution relating thereto. A determination of
stockholders of record entitled to notice of or to vote at a meeting of
stockholders shall apply to any adjournment of the meeting; provided, however,
that the Board of Directors may fix a new record date for the adjourned
meeting.

         Section 1.9. Advance Notice of Stockholder Nominees for Director. Only
persons who are nominated in accordance with the procedures set forth in this
Section 1.9 shall be eligible for election as Directors. Nominations of persons
for election to the Board of Directors of the corporation may be made at a
meeting of stockholders by or at the direction of the Board of Directors or by
any stockholder of the corporation entitled to vote for the election of
Directors at the meeting who complies with the notice procedures set forth in
this Section 1.9. Such nominations, other than those made by or at the
direction of the Board of Directors, shall be made pursuant to timely notice in
writing to the Secretary of the corporation. To be timely, a


                                       3
<PAGE>   4

stockholder's notice shall be delivered to or mailed and received at the
principal executive offices of the corporation not less than 60 days nor more
than 90 days prior to the meeting; provided, however, that in the event that
less than 70 days' notice or prior public disclosure of the date of the meeting
is given or made to stockholders, notice by the stockholder to be timely must
be so received not later than the close of business on the 10th day following
the day on which such notice of the date of the meeting was mailed or such
public disclosure was made. Such stockholder's notice shall set forth (a) as to
each person whom the stockholder proposes to nominate for election or
re-election as a Director, (i) the name, age, business address and residence
address of such person, (ii) the principal occupation or employment of such
person, (iii) the class and number of shares of the corporation which are
beneficially owned by such person, and (iv) any other information relating to
such person that is required to be disclosed in solicitations of proxies for
election of Directors, or is otherwise required, in each case pursuant to
Regulation 14A under the Securities Exchange Act of 1934, as amended (including
without limitation such persons' written consent to being named in the proxy
statement as a nominee and to serving as a Director if elected); and (b) as to
the stockholder giving the notice (i) the name and address, as they appear on
the corporation's books, of such stockholder and (ii) the class and number of
shares of the corporation which are beneficially owned by such stockholder. At
the request of the Board of Directors any person nominated by the Board of
Directors for election as a Director shall furnish to the Secretary of the
corporation that information required to be set forth in a stockholder's notice
of nomination which pertains to the nominee. No person shall be eligible for
election as a Director of the corporation unless nominated in accordance with
the procedures set forth in this Section 1.9. The Chairman of the meeting
shall, if the facts warrant, determine and declare to the meeting that a
nomination was not made in accordance with the procedures prescribed by the
By-Laws, and if he should so determine, he shall so declare to the meeting and
the defective nomination shall be disregarded.

         Section 1.10. Advance Notice of Stockholder Business. At an annual
meeting of stockholders, only such business shall be conducted as shall have
been properly brought before the meeting. To be properly brought before an
annual meeting business must be (a) specified in the notice of meeting (or any
supplement thereto) given by or at the direction of the Board of Directors, (b)
otherwise properly brought before the meeting by or at the direction of the
Board of Directors, or (c) otherwise properly brought before the meeting by a
stockholder. For business to be properly brought before an annual meeting by a
stockholder, the stockholder must have given timely notice thereof in writing
to the Secretary of the corporation. To be timely, a stockholder's notice must
be delivered to or mailed and received at the principal executive offices of
the corporation, not less than 60 days nor more than 90 days prior to the
meeting; provided, however, that in the event that less than 70 days' notice or
prior public disclosure of the date of the meeting is given or made to
stockholders, notice by the stockholder to be timely must be so received not
later than the close of business on the 10th day following the day on which
such notice of the date of the annual meeting was mailed or such public
disclosure was made. A stockholder's notice to the Secretary shall set forth as
to each matter the stockholder


                                       4
<PAGE>   5

proposes to bring before the annual meeting (a) a brief description of the
business desired to be brought before the annual meeting and the reasons for
conducting such business at the annual meeting, (b) the name and address, as
they appear on the corporation's books, of the stockholder proposing such
business, (c) the class and number of shares of the corporation which are
beneficially owned by the stockholder, and (d) any material interest of the
stockholder in such business. Notwithstanding anything in the By-Laws to the
contrary, no business shall be conducted at any annual meeting except in
accordance with the procedures set forth in this Section 1.10. The Chairman of
the annual meeting shall, if the facts warrant, determine and declare to the
meeting that business was not properly brought before the meeting and in
accordance with the provisions of this Section 1.10, and if he should so
determine, he shall so declare to the meeting and any such business not
properly brought before the meeting shall not be transacted.

         Section 1.11. List of Stockholders Entitled to Vote. The Secretary
shall prepare and make, at least ten days before every meeting of stockholders,
a complete list of the stockholders entitled to vote at the meeting, arranged
in alphabetical order, and showing the address of each stockholder and the
number of shares registered in the name of each stockholder. Such list shall be
open to the examination of any stockholder, for any purpose germane to the
meeting, during ordinary business hours, for a period of at least ten days
prior to the meeting, either at a place within the city where the meeting is to
be held, which place shall be specified in the notice of the meeting, or if not
so specified, at the place where the meeting is to be held. The list shall also
be produced and kept at the time and place of the meeting during the whole time
thereof and may be inspected by any stockholder who is present. Upon the
willful neglect or refusal of the directors to produce such a list at any
meeting for the election of directors, they shall be ineligible for election to
any office at such meeting. The stock ledger shall be the only evidence as to
who are the stockholders entitled to examine the stock ledger, the list of
stockholders or the books of the corporation, or to vote in person or by proxy
at any meeting of stockholders.

         Section 1.12. Action By Consent of Stockholders. Unless otherwise
restricted by the certificate of incorporation, any action required or
permitted to be taken at any annual or special meeting of the stockholders may
be taken without a meeting, without prior notice and without a vote, if a
consent or consents in writing, setting forth the action so taken, shall be
signed by the holders of outstanding stock having not less than the minimum
number of votes that would be necessary to authorize or take such action at a
meeting at which all shares entitled to vote thereon were present and voted and
shall be delivered (by hand or by certified or registered mail, return receipt
requested) to the corporation by delivery to its registered office in the State
of Delaware, its principal place of business, or an officer or agent of the
corporation having custody of the book in which proceedings of minutes of
stockholders are recorded. Prompt notice of the taking of the corporate action
without a meeting by less than unanimous written consent shall be given to
those stockholders who have not consented in writing.


                                       5
<PAGE>   6

         Section 1.13. Conduct of Meetings. The Board of Directors of the
corporation may adopt by resolution such rules and regulations for the conduct
of the meeting of stockholders as it shall deem appropriate. Except to the
extent inconsistent with such rules and regulations as adopted by the Board of
Directors, the chairman of any meeting of stockholders shall have the right and
authority to prescribe such rules, regulations and procedures and to do all
such acts as, in the judgment of such chairman, are appropriate for the proper
conduct of the meeting. Such rules, regulations or procedures, whether adopted
by the Board of Directors or prescribed by the chairman of the meeting, may
include, without limitation, the following: (i) the establishment of an agenda
or order of business for the meeting; (ii) rules and procedures for maintaining
order at the meeting and the safety of those present; (iii) limitations on
attendance at or participation in the meeting to stockholders of record of the
corporation, their duly authorized and constituted proxies or such other
persons as the chairman of the meeting shall determine; (iv) restrictions on
entry to the meeting after the time fixed for the commencement thereof; and (v)
limitations on the time allotted to questions or comments by participants.
Unless and to the extent determined by the Board of Directors or the chairman
of the meeting, meetings of stockholders shall not be required to be held in
accordance with the rules of parliamentary procedure.


                                   ARTICLE II

                               Board of Directors

         Section 2.1. Qualifications. Directors need not be stockholders.

         Section 2.2. Election; Resignation; Removal. Each director shall hold
office until the next election of the class or category for which such director
shall have been chosen, and until his or her successor is elected and qualified
or until his or her earlier resignation or removal. Any director may resign at
any time upon written notice to the corporation. No director may be removed
except as provided in the certificate of incorporation.

         Section 2.3 Regular Meetings. Regular meetings of the Board of
Directors may be held at such places within or without the State of Delaware
and at such times as the Board of Directors may from time to time determine,
and if so determined notices thereof need not be given.

         Section 2.4 Special Meetings. Special meetings of the Board of
Directors may be held at any time or place within or without the State of
Delaware whenever called by the President, any Vice President, the Secretary,
or by any member of the Board of Directors. Notice of a special meeting of the
Board of Directors shall be given by the person or persons calling the meeting
at least twenty-four hours before the special meeting.


                                       6
<PAGE>   7
         Section 2.5 Telephonic Meetings Permitted. Members of the Board of
Directors, or any committee designated by the Board of Directors, may
participate in a meeting thereof by means of conference telephone or similar
communications equipment by means of which all persons participating in the
meeting can hear each other, and participation in a meeting pursuant to this
by-law shall constitute presence in person at such meeting.

         Section 2.6 Quorum; Vote Required for Action. At all meetings of the
Board of Directors a majority of the whole Board of Directors shall constitute
a quorum for the transaction of business. Except in cases in which the
certificate of incorporation or these by-laws otherwise provide, the vote of a
majority of the directors present at a meeting at which a quorum is present
shall be the act of the Board of Directors.

         Section 2.7 Organization. Meetings of the Board of Directors shall be
presided over by the Chairman of the Board, if any, or in his absence by the
Vice Chairman of the Board, if any, or in his absence by the President, or in
their absence by a chairman chosen at the meeting. The Secretary shall act as
secretary of the meeting, but in his absence the chairman of the meeting may
appoint any person to act as secretary of the meeting.

         Section 2.8. Informal Action by Directors. Unless otherwise restricted
by the certificate of incorporation or these by-laws, any action required or
permitted to be taken at any meeting of the Board of Directors, or of any
committee thereof, may be taken without a meeting if all members of the Board
of Directors or such committee, as the case may be, consent thereto in writing,
and the writing or writings are filed with the minutes of proceedings of the
Board of Directors or such committee.


                                  ARTICLE III

                                   Committees

         Section 3.1. Committees. The Board of Directors may, by resolution
passed by a majority of the whole Board of Directors, designate one or more
committees, each committee to consist of one or more of the directors of the
corporation. The Board of Directors may designate one or more directors as
alternate members of any committee, who may replace any absent or disqualified
member at any meeting of the committee. In the absence or disqualification of a
member of the committee, the member or members thereof present at any meeting
and not disqualified from voting, whether or not he or they constitute a
quorum, may unanimously appoint another member of the Board of Directors to act
at the meeting in place of any such absent or disqualified member. Any such
committee, to the extent permitted by law and to the extent provided in the
resolution of the Board of Directors, shall have and may exercise all the
powers and authority of the Board of Directors in the management of the
business and affairs of


                                       7
<PAGE>   8

the corporation, and may authorize the seal of the corporation to be affixed to
all papers which may require it.

         Section 3.2. Committee Rules. Unless the Board of Directors otherwise
provides, each committee designated by Board of Directors may make, alter and
repeal rules for the conduct of its business. In the absence of such rules each
committee shall conduct its business in the same manner as the Board of
Directors conducts its business pursuant to Article II of these by-laws.


                                   ARTICLE IV

                                    Officers

         Section 4.1. Executive Officers; Election; Qualifications; Term of
Office; Resignation; Removal; Vacancies. The Board of Directors shall elect a
President and Secretary, and it may, if it so determines, choose a Chairman of
the Board and a Vice Chairman of the Board from among its members. The Board of
Directors may also choose one or more Vice Presidents, one or more Assistant
Secretaries, a Treasurer and one or more Assistant Treasurers. Each such
officer shall hold office until the first meeting of the Board of Directors
after the annual meeting of stockholders next succeeding his election, and
until his successor is elected and qualified or until his earlier resignation
or removal. Any officer may resign at any time upon written notice to the
corporation. The Board of Directors may remove any officer with or without
cause at any time, but such removal shall be without prejudice to the
contractual rights of such officer, if any, with the corporation. Any number of
offices may be held by the same person. Any vacancy occurring in any office of
the corporation by death, resignation, removal or otherwise may be filled for
the unexpired portion of the term by the Board of Directors at any regular or
special meeting.

         Section 4.2. Powers and Duties of Executive Officers. The officers of
the corporation shall have such powers and duties in the management of the
corporation as may be prescribed in a resolution by the Board of Directors and,
to the extent not so provided, as generally pertain to their respective
offices, subject to the control of the Board of Directors. The Board of
Directors may require any officer, agent or employee to give security for the
faithful performance of his duties.


                                   ARTICLE V

                                     Stock

         Section 5.1. Certificates. Every holder of stock shall be entitled to
have a certificate signed by or in the name of the corporation by the Chairman
or Vice Chairman of the Board of


                                       8
<PAGE>   9

Directors, if any, or the President or a Vice President, and by the Treasurer
or an Assistant Treasurer, or the Secretary or an Assistant Secretary, of the
corporation certifying the number of shares owned by him in the corporation.
Any of or all the signatures on the certificate may be a facsimile. In case any
officer, transfer agent or registrar who has signed or whose facsimile
signature has been placed upon a certificate shall have ceased to be such
officer, transfer agent, or registrar before such certificate is issued, it may
be issued by the corporation with the same effect as if he were such officer,
transfer agent, or registrar at the date of issue.

         Section 5.2. Lost, Stolen or Destroyed Stock Certificates; Issuance of
New Certificates. The corporation may issue a new certificate of stock in the
place of any certificate theretofore issued by it, alleged to have been lost,
stolen or destroyed, and the corporation may require the owner of the lost,
stolen or destroyed certificate, or his legal representative, to give the
corporation a bond sufficient to indemnify it against any claim that may be
made against it on account of the alleged loss, theft or destruction of any
such certificate or the issuance of such new certificate.


                                   ARTICLE VI

                                Indemnification

         Section 6.1. Claims. If a claim for indemnification or payment of
expenses under this the corporation's certificate of incorporation is not paid
in full within sixty days after a written claim therefor has been received by
the corporation, the claimant may file suit to recover the unpaid amount of
such claim and, if successful in whole or in part, shall be entitled to be paid
the expense of prosecuting such claim. In any such action the corporation shall
have the burden of proving that the claimant was not entitled to the requested
indemnification or payment of expenses under applicable law.

         Section 6.2. Non-Exclusivity of Rights. The rights conferred on any
person by this Article VI shall not be exclusive of any other rights to which
those seeking indemnification or advancement of expenses may be entitled under
any statute, provision of the certificate of incorporation, these by-laws,
agreement, vote of stockholders or directors or any other document or
arrangement.

         Section 6.3. Other Indemnification. The corporation's obligation, if
any, to indemnify any person who was or is serving at its request as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust, enterprise or nonprofit entity shall be reduced by any amount
such person may collect as indemnification from such other corporation,
partnership, joint venture, trust, enterprise or nonprofit enterprise.


                                       9
<PAGE>   10

         Section 6.4. Amendment or Repeal. Any amendment, alteration, change or
repeal of this Article VI shall not adversely affect any right or protection of
any person hereunder in respect of any act or omission occurring prior to the
time of such amendment, alteration, change or repeal.

                                  ARTICLE VII

                                 Miscellaneous

         Section 7.1. Fiscal Year. The fiscal year of the corporation shall be
determined by resolution of the Board of Directors.

         Section 7.2. Seal. The corporate seal shall have the name of the
corporation inscribed thereon and shall be in such form as may be approved from
time to time by the Board of Directors.

         Section 7.3. Waiver of Notice of Meetings of Stockholders, Directors
and Committees. Any written waiver of notice, signed by the person entitled to
notice, whether before or after the time stated therein, shall be deemed
equivalent to notice. Attendance of a person at a meeting shall constitute a
waiver of notice of such meeting, except when the person attends a meeting for
the express purpose of objecting, at a the beginning of the meeting, to the
transaction of any business because the meeting is not lawfully called or
convened. Neither the business to be transacted at nor the purpose of any
regular or special meeting of the stockholders, directors, or members of a
committee of directors need be specified in any written waiver of notice.

         Section 7.4. Interested Directors; Quorum. No contract or transaction
between the corporation and one or more of its directors or officers, or
between the corporation and any other corporation, partnership, association, or
other organization in which one or more of its directors or officers are
directors or officers, or have a financial interest, shall be void or voidable
solely for this reason, or solely because the director or officer is present at
or participates in the meeting of the Board of Directors or committee thereof
which authorizes the contract or transaction, or solely because his or their
votes are counted for such purpose, if: (1) the material facts as to his
relationship or interest and as to the contract or transaction are disclosed or
are known to the Board of Directors or the committee, and the Board of
Directors or committee in good faith authorizes the contract or transaction by
the affirmative votes of a majority of the disinterested directors, even though
the disinterested directors be less than a quorum; or (2) the material facts as
to his relationship or interest and as to the contract or transaction are
disclosed or are known to the stockholders entitled to vote thereon, and the
contract or transaction is specifically approved in good faith by vote of the
stockholders; or (3) the contract or transaction is fair as to the corporation
as of the time it is authorized, approved or ratified, by the Board of
Directors, a committee thereof, or the stockholders. Common or interested
directors may be counted in


                                       10
<PAGE>   11
determining the presence of a quorum at a meeting of the Board of Directors or
of a committee which authorizes the contract or transaction.

         Section 7.5. Form of Records. Any records maintained by the
corporation in the regular course of its business, including its stock ledger,
books of account, and minute books, may be kept on, or be in the form of, punch
cards, magnetic tape, photographs, microphotographs, or any other information
storage device, provided that the records so kept can be converted into clearly
legible form within a reasonable time.

         Section 7.6. Amendment of By-Laws. These by-laws may be amended,
modified or repealed, and new by-laws may be adopted at any time, by the Board
of Directors. Stockholders of the corporation may adopt additional by-laws and
amend, modify or repeal any by-law whether or not adopted by them, but only in
accordance with Article NINTH of the certificate of incorporation.


                                      11

<PAGE>   1
                                                                    EXHIBIT 21.1

                  List of Subsidiaries of The Hull Group Inc.



Name                                          Jurisdiction of Organization
- ----                                          ---------------------------- 

Hull and Associates, L.L.C.                   Delaware
Hull Equity Management, L.L.C.                Illinois
Hull Trading GmbH                             Germany
Hull Trading Asia Limited                     Hong Kong
Hull Trading UK Limited                       United Kingdom
Hull Liquidity Fund, L.P.                     Delaware
Hull Quantitative Fund, L.L.C.                Delaware
Hull Quantitative Offshore Fund, L.L.C.       Cayman Islands

<PAGE>   1

                                                                    EXHIBIT 23.1

                        CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" and to the
use of our report dated April 30, 1999, with respect to the consolidated
financial statements of Hull Trading Company, L.L.C. included in the
Registration Statement on Form S-1 and related Prospectus of The Hull Group Inc.
dated May 13, 1999.


                                           /s/ ERNST & YOUNG LLP


Chicago, Illinois
May 11, 1999

<PAGE>   1
                                                                    EXHIBIT 23.2





                        CONSENT OF INDEPENDENT AUDITORS


We consent to the reference to our firm under the captions "Experts" and to the
use of our report dated February 5, 1998, with respect to the consolidated
financial statements of Hull Trading Company, L.L.C. included in the
Registration Statement on Form S-1 and related Prospectus of The Hull Group Inc.
dated May 13, 1999.




                                                     /s/ SCHULTZ & CHEZ, L.L.P.




Chicago, Illinois
May 11, 1999

<TABLE> <S> <C>

<ARTICLE> BD
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             MAR-31-1999
<PERIOD-START>                             JAN-01-1998             JAN-01-1999
<PERIOD-END>                               DEC-31-1998             MAR-31-1999
<CASH>                                           2,723                   7,033
<RECEIVABLES>                                   24,123                  47,314
<SECURITIES-RESALE>                                  0                       0
<SECURITIES-BORROWED>                                0                       0
<INSTRUMENTS-OWNED>                          1,723,793               1,382,754
<PP&E>                                           7,128                   7,372
<TOTAL-ASSETS>                               1,793,095               1,480,041
<SHORT-TERM>                                    10,107                       0
<PAYABLES>                                     354,158                 189,950
<REPOS-SOLD>                                         0                       0
<SECURITIES-LOANED>                                  0                       0
<INSTRUMENTS-SOLD>                           1,281,634               1,130,366
<LONG-TERM>                                          0                       0
                                0                       0
                                          0                       0
<COMMON>                                        95,579                 109,243
<OTHER-SE>                                           0                       0
<TOTAL-LIABILITY-AND-EQUITY>                 1,793,095               1,480,041
<TRADING-REVENUE>                               96,234                  37,640
<INTEREST-DIVIDENDS>                            45,489                  13,343
<COMMISSIONS>                                        0                       0
<INVESTMENT-BANKING-REVENUES>                        0                       0
<FEE-REVENUE>                                    9,995                   1,099
<INTEREST-EXPENSE>                              49,732                  14,340
<COMPENSATION>                                  25,400                   7,656
<INCOME-PRETAX>                                 40,561                  21,066
<INCOME-PRE-EXTRAORDINARY>                           0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    29,660                  16,378
<EPS-PRIMARY>                                        0                       0
<EPS-DILUTED>                                        0                       0
        

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