SEI CORP
10-K, 2000-03-29
SECURITY BROKERS, DEALERS & FLOTATION COMPANIES
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<PAGE>

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                              ===================

                                   FORM 10-K

(Mark One)
[X]    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
       ACT OF 1934

For the fiscal year ended:                  December 31, 1999
                           ----------------------------------------------------
                                      OR

[_]    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
       EXCHANGE ACT OF 1934

For the transition period from ______________________  to  ___________________

                    Commission file number       0 - 10200
                                           ----------------------

                            SEI INVESTMENTS COMPANY
- --------------------------------------------------------------------------------
            (Exact name of registrant as specified in its charter)

          Pennsylvania                                    23-1707341
- -------------------------------                  ------------------------------
(State or other jurisdiction of                  (IRS Employer Identification
incorporation or organization)                               Number)

   1 Freedom Valley Drive, Oaks, Pennsylvania              19456-1100
- ----------------------------------------------    -----------------------------
   (Address of principal executive offices)                (Zip Code)

 Registrant's telephone number, including area code        610-676-1000
                                                       ----------------------

 Securities registered pursuant to Section 12(b) of the Act:
                                                Name of Each Exchange on Which
       Title of Each Class                                 Registered
       -------------------                    ----------------------------------
              None

Securities registered pursuant to Section 12(g) of the Act:

                    Common Stock, par value $.01 per share
- --------------------------------------------------------------------------------
                               (Title of class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes  X    No___
                                       ---
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [_]

                           (Cover page 1 of 2 pages)
                           Exhibit Index on Page 61
                              Page 1 of 78 Pages

                                                                               1
<PAGE>

State the aggregate market value of the voting stock held by non-affiliates of
the registrant based on the closing price of such stock as reported by NASDAQ as
of February 29, 2000: $1,066,321,000. For purposes of making this calculation
only, registrant has defined affiliates as including all directors and
beneficial owners of more than ten percent of the common stock of the
registrant.



       APPLICABLE ONLY TO REGISTRANTS INVOLVED IN BANKRUPTCY PROCEEDINGS
                       DURING THE PRECEDING FIVE YEARS:

Indicate by check mark whether the registrant has filed all documents and
reports required to be filed by Section 12, 13, or 14(d) of the Securities
Exchange Act of 1934 subsequent to the distribution of securities under a plan
confirmed by a court.
Yes        No
    -----      -----


                   APPLICABLE ONLY TO CORPORATE REGISTRANTS:

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of February 29, 2000: 17,637,837.


                     DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the following documents are incorporated by reference herein:

     1.   Notice of and Proxy Statement for the 2000 Annual Meeting of
          Shareholders to be filed within 120 days after the end of the fiscal
          year covered by this annual report, incorporated by reference in Part
          III hereof.



                           (Cover page 2 of 2 pages)

                                                                               2
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                                    PART I

Item 1.  Business.
         --------

General Development of Business
- -------------------------------

SEI Investments Company ("SEI") was incorporated in Pennsylvania in 1968 and
initially offered its shares to the public in March 1981. The principal wholly
owned subsidiaries of SEI are SEI Investments Distribution Company ("SIDCO"),
SEI Investments Management Corporation ("SIMC"), and SEI Trust Company ("SEI
Trust"). SIDCO is a broker-dealer registered with the Securities and Exchange
Commission ("SEC") under the Securities Exchange Act of 1934 and is a member of
the National Association of Securities Dealers, Inc. SIMC is an investment
advisor registered with the SEC under the Investment Advisers Act of 1940. SEI
Trust is a trust entity chartered in the Commonwealth of Pennsylvania.

SEI introduced its first trust system in 1972 providing on-line, real-time
accounting and management information to bank trust departments. Today, this
technology service is offered through the TRUST 3000(R) product line that
provides product capabilities and processing power to serve even the largest
trust institutions. SEI Trust offers back-office accounting and processing
services to trust institutions which allows them to outsource their trust
operations and related investment functions completely.

In 1982, SEI began to sponsor a number of institutional investment products,
primarily in the form of registered investment companies sold to institutional
investors and financial intermediaries. SIDCO and SIMC provide various asset
management services to institutional investors, professional investment
counselors and affluent individuals. These services include investment solutions
that enable clients to establish asset allocation strategies and gain access to
top-quality investment managers. SEI has expanded its asset management services
outside the United States by targeting selected foreign markets for its
investment management programs.

SIDCO and SIMC also provide a full range of administration and distribution
services to proprietary mutual funds established for banks and other financial
institutions and intermediaries. The client serves as the investment advisor for
the proprietary funds, and the funds are sold primarily to customers of the
client.

                                                                               3
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Industry Segments
- -----------------

Financial information is reported through four business lines: Technology
Services, Asset Management, Mutual Fund Services, and Investments in New
Business. These business segments reflect how management measures financial
information internally. Technology Services, which accounted for 41 percent of
consolidated revenues in 1999, includes the TRUST 3000 product line and trust
operations outsourcing. Asset Management, which accounted for 30 percent of
consolidated revenues in 1999, provides investment programs covering diversified
investment strategies to institutional and high-net-worth markets. Mutual Fund
Services, which accounted for 24 percent of consolidated revenues in 1999,
provides administration and distribution services to mutual funds and other
pooled funds created for banks, money managers and other financial institutions.
Investments in New Business, which accounted for 5 percent of consolidated
revenues in 1999, primarily consists of international asset management
initiatives.

Financial information about each business segment is contained in Note 11 of the
Notes to Consolidated Financial Statements in Item 8. Additional financial
information and discussion about each business segment, including a breakdown of
revenues by product line, is contained in Management's Discussion and Analysis
of Financial Condition and Results of Operations in Item 7.

Technology Services

         Trust Technology Services

Our comprehensive software products and computer processing services help
trust institutions manage investments for their personal and institutional
investors. TRUST 3000 is a complete trust accounting and investment system with
fully automated securities movement and control linked directly to the
Depository Trust Company. It offers investment management functionality through
a number of integrated products and sub-systems that supports investment
accounting, client administration, portfolio analysis, and trade order
processing for both domestic and global securities processing. TRUST 3000 also
provides access to multiple third-party pricing and asset related information.
Through training, custom programming and our open architecture strategy, we help
adapt our products to each client's particular needs. Clients access TRUST 3000
utilizing terminals and workstations that are connected to our data center.

The value of TRUST 3000 has been enhanced by the StrataQuest(TM) product line
which includes technology platform products that manage the flow of data and
allow for the integration of TRUST 3000 information with any application
operating in the clients' distributed computing environment. StrataQuest is a
flexible combination of modular workstation application products that transform
data into user-friendly customer service and investment analysis desktop
applications. In addition, our StrataWeb product provides access to data to
end investors through the Internet.

Clients that use TRUST 3000 can effect purchases and redemptions of our
liquidity products through an automated subsystem that performs daily sweeps of
trust accounts and invests the available cash. Bank clients can also invest in
our Tri-Party Repurchase Agreement program that offers competitive yields
for short-term investing.

Money manager and TRUST 3000 clients remit payment for services rendered in cash
or, subject to applicable regulatory guidelines, by directing brokerage
commissions to SIDCO through SEI-approved clearing agents or clearing brokers.
These clients may also apply a portion of such directed brokerage commissions to
defray certain other third-party costs. As a result of the directed brokerage
business, revenues may be affected by changes in market trading volume or
changes in government regulations affecting directed brokerage payments.

                                                                               4
<PAGE>

The market for our trust accounting and management information services consists
primarily of bank trust departments managing assets between $10 million and $100
billion. Consolidations in the banking industry may reduce the number of bank
prospects and/or eliminate customers from our user base. However, the economic
pressures on the banking industry are also creating a greater demand for
outsourcing services, as banks increasingly focus on their core strengths. There
are approximately 2,800 US institutions with trust powers in our market. At
December 31, 1999, we were providing processing or software services to
approximately 83 trust departments, including trust departments of 7 of the top
10 banks, primarily located throughout the United States. We segregate the trust
accounting and information services market by trust assets under management: $20
billion or more in managed assets; $750 million to $20 billion in managed
assets; and under $750 million in managed assets. Each of these trust accounting
and management information services markets are characterized by different
pricing, service, and product parameters and we offer a full range of products
and services suitable for each. Customers generally contract for terms of three
to seven years and revenues are based on monthly processing and software
application service fees.

Our principal competitors are Fidelity-Trust Technology Services LLC, SunGard
Data Systems, Marshall and Isley, and financial institutions that operate their
own trust processing systems. However, in terms of both revenues and number of
trust accounts processed, the TRUST 3000 product line is the leading trust
accounting and management system sold by third-party vendors to bank trust
departments. We believe the most important factors in a potential customer's
evaluation and choice of vendor are: product and service reliability; security
and risk; functional capability; ease of use and future flexibility; value; and
cost effectiveness. Clients also consider a vendor's experience in and it's
commitment to the financial industry. Trust technology services accounted for
approximately 36 percent of consolidated revenues in 1999.

         Trust Operations Outsourcing

We combine our technological strength and investment expertise to assume the
entire trust operation for institutional clients who wish to outsource their
trust department operations and processes. We provide trust institutions with
access to TRUST 3000 and our investment programs, along with processing,
reporting, and custody services provided through the specialized capabilities of
SEI Trust personnel. SEI Trust automates and centralizes the client's trust
accounting, income collections, securities settlement, and securities processing
functions. In addition, SEI Trust prepares and processes customer statements,
investment reviews, and employee benefit accrual reports and remittances to the
clients' customers.

The market for our trust operations outsourcing consists primarily of bank trust
departments ranging in size from start-ups to those managing assets of $20
billion. However, as the concept of outsourcing has gained credibility and
acceptance within the industry, banks of all sizes are recognizing the value in
outsourcing their trust operations. We also believe there is a market for these
services in non-bank financial institution channels. This product line is also
affected by consolidation of the banking industry, which may reduce the number
of potential bank prospects and/or eliminate customers from our user base. At
December 31, 1999, we had contracts to perform trust operations outsourcing
services to 70 clients. The term of the contracts varies from three to five
years.

Currently, the only significant competitor in this market is Marshall and Isley.
Additional competitors can be expected over the next few years. Revenues from
trust operations outsourcing accounted for approximately 5 percent of
consolidated revenues in 1999.

                                                                               5
<PAGE>

Asset Management

We offer global investment strategies directly to institutional investors and
to affluent individual investors through a select network of registered
investment advisors and other professional investment counselors. Our asset
management team has developed a specialized investment approach to provide
investors access to the best money management talent from around the world and
optimal portfolio allocation at a reasonable cost. We create investment
strategies tailored to clients' specific financial objectives, and choose the
best style specific money managers to implement them. This innovative approach,
called a "Manager of Managers" approach, ensures adherence to our disciplined
investment principles because each manager's performance is tracked and
scrutinized. Comprehensive support services, including accounting and investor
reporting are also provided. Investments are made through a series of domestic
equity, fixed income and tax-exempt mutual funds, separate account management,
and offshore funds. We employ a total investment management approach that
utilizes a quantitative asset allocation model and investment strategies based
upon the precepts of modern portfolio theory, specialist sub-advisors that we
select and monitor, and active risk management.

Through SIMC, we serve as the administrator, transfer agent, and fund accountant
for these products. We also act as the investment advisor for many of these
products. The investment advisory and administration contracts between SIMC and
the funds are subject to renewal annually by the board of trustees of the funds.
These contracts provide for the payment of administrative fees based on a
percentage of the average daily net assets of each fund.

         Investment Management Fees

We provide investment solutions to pension plan sponsors, hospitals,
foundations, endowment funds, and other institutional investors. We offer such
investors an integrated investment program, which enables a pension or other
investment committee to outsource their investment management process to us
including trustee and custodial services. Using a disciplined fund management
process and superior technology, we work with each client to develop asset
management strategies that are consistent with the client's business needs,
investment objectives, risk tolerance, investment restrictions, and time
horizon. Then, through the combination of the portfolio construction process,
multiple asset classes, and style allocations, we work toward the client's
investment goals. A client's strategy is implemented through our Family of Funds
that employ sub-advisors that are specialists in a particular style. The
potential benefit of this method is improved performance with reduced volatility
because it eliminates the task of attempting to estimate which style of
investing will be in favor at any point in time. Specialist-advisors are
monitored for performance so trading strategies conform to predetermined market,
sector, and style characteristics. We maintain the asset class exposure within
the specifically defined boundaries of our client's asset allocation plan by
incorporating a formal rebalancing program in our asset management process
utilizing state-of-the-art technology. Overall, diversifying by asset class,
manager style, sub-style, and sector tends to reduce risk while improving the
prospects for long-term growth. Clients also have the ability to access
specialized money managers through separate accounts.

We also deliver business building solutions to independent broker-dealers,
registered investment advisors, financial planners, life insurance producers,
and bank trust departments. The investment programs offered through these
financial advisors are targeted to attract the assets of high-net-worth
individuals (defined as individuals with over $500,000 of investable assets) and
small to medium sized institutional plans. Our programs allow advisors to
outsource many aspects of asset management, back-office operations, marketing,
and client services. This allows the investment advisors to focus their
resources on creating financial plans, implementing investment strategies, and
educating and servicing their clients. The programs also allow access to
institutional money managers normally not available to individual investors.
Asset allocation, portfolio structure, tax management, specialist investment and
continuous portfolio management are the five key principles of our investment
philosophy. Financial intermediaries are offered various asset allocation models
that provide diversification among investment classes and periodic rebalancing
to achieve the investor's objectives. We offer a wide range of investment
solutions including tax managed programs.

At December 31, 1999, there were approximately 2,600 clients invested in our
asset management programs through separate accounts or through our Family of
Funds with $42 billion in assets invested. The principal competition for our
asset management products is from other investment advisors and mutual fund
companies. Also, revenues are affected by changes in the value of securities
traded in various financial markets. Fees are earned as a percentage of average
assets under management. Revenues from investment management fees accounted for
approximately 26 percent of consolidated revenues in 1999.

                                                                               6
<PAGE>

         Liquidity Management Fees

We apply our expertise to short term investment, as well. We assist corporations
in developing investment programs to meet their unique cash flow needs by
coordinating investment strategies with expected disbursements. Our CashSweep(R)
program helps commercial banks compete successfully with larger institutions by
offering their clients superior cash management services. This program enables
financial institutions to sweep excess balances from demand deposit accounts
into money market accounts. To build a successful sweep program, we combine
technology with our cash management investment products, cash management
services, marketing and consulting support. Our CashStrategies(R) program uses
proprietary technology to help treasurers analyze cash flow and develop dynamic
cash management strategies, which they execute with our investment products. We
help clients allocate their cash between liquid and longer-term investments.
Longer-duration cash is invested in one of our Secondary Cash Investment Models,
each providing an optimal balance of strong yield and high liquidity. We help to
implement the strategy and render ongoing service and analytical support.

Liquidity products consist primarily of money market and other short-term mutual
funds and our Repurchase Agreement Program ("REPO"). REPO permits institutions
to invest short-term funds in overnight and term tri-party repurchase agreements
and other overnight and short-term investment products. Clients may purchase or
redeem investment products and retrieve information about their accounts through
SEI Direct, or by telephone orders to SIMC.

The market for our liquidity products and services consist primarily of bank
trust departments, investment advisors, and corporations located in the United
States. The number of bank and non-bank clients utilizing our liquidity products
and services totaled approximately 960 at December 31, 1999. Total assets
invested in liquidity funds, including REPO, totaled $23 billion at December 31,
1999.

Our principal competitors in liquidity products and services include Federated
Investors, Inc., Fidelity Management Corporation, Goldman, Sachs & Co., and PNC
Bank, and other mutual fund complexes that market to institutional investors as
well as individual bank proprietary and common trust funds. A potential customer
of liquidity services business considers the price and performance of investment
products and diverse product offerings, as well as the ease of investment
through the automated sweep system. Revenues from liquidity management fees
offered to investment advisors and corporations accounted for approximately 4
percent of consolidated revenues in 1999.


Mutual Fund Services

We provide administration and distribution services to mutual funds and other
pools of money sponsored or held by banks, insurance firms, and investment
companies for which the client serves as the investment advisor. We provide all
required fund accounting and shareholder services including investment tracking,
transaction processing, pricing, investment and tax reporting, regulatory
compliance and daily support. Distribution services focus on identifying
distribution opportunities and establishing product and program strategies that
will assist the client in attracting and retaining assets. This includes
assistance with developing and executing business and marketing plans.
Additionally, we maintain an office in Dublin, Ireland that offers
administrative services, distribution consulting services, and marketing support
services to fund complexes in international markets. Our multidisciplinary
global team is experienced in administering a full range of investment
structures including mutual funds, money funds, hedge funds, and separate
accounts. These services are closely integrated with those of our domestic
services group.

The market for fund services and products consists primarily of banks, insurance
companies, and investment managers. However, we are diversifying our business to
offshore funds and hedge funds. As a result of legislation repealing
Glass-Steagall provisions, banks may now perform securities distribution
services themselves under the Financial Modernization Act. In addition,
consolidations in the banking industry may reduce the number of bank proprietary
fund complexes in existence. At the end of 1999, there were approximately 95
bank proprietary fund complexes that existed in the United States, according to
FRC/Lipper. At December 31, 1999, we provided fund services to 31 banks,
investment management companies, and insurance firms with proprietary mutual
fund assets of approximately $171 billion. Our contracts with mutual fund
complexes have initial terms ranging from two to five years.


                                                                               7
<PAGE>

Our principal competitors for mutual fund services include The BISYS Group,
Federated Investors, Inc., PFPC/First Data Investor Services Group, State Street
Bank, and Investment Company Administrators. Potential customers of mutual fund
services consider the price of such services, the performance of its
administrative and other support services such as legal and marketing, and the
integration of such services provided through our proprietary software. Revenues
from mutual fund services accounted for approximately 24 percent of consolidated
revenues in 1999.


Investments in New Business

We have several other business ventures to expand our asset management programs
and services to high-net-worth investors, pension plans, governmental
organizations, and private corporations in foreign countries. We also provide
performance evaluation and consulting services to Canadian pension plans.

Using the same asset management disciplines that have benefited US clients, we
provide investment management programs tailored to the needs of institutional
and affluent individual investors in selected target markets: Canada,
Europe/South Africa, Latin America, and Asia. These initial efforts have created
distribution channels for our asset management services and have well positioned
us for the introduction of new products. Penetration into the global asset
management marketplace has been initiated through various acquisitions, joint
ventures with local firms and the startup of satellite offices outside the
United States.

Our approach is to expand existing business lines into a coherent global
business consistent with our United States strategy of providing portfolio
solution offerings rather than product sales. Allocation of assets among the
portfolio's specialist money managers and directing and evaluating the
investment services provided by these selected managers is the cornerstone of
our global investment strategy. Additionally, services include the delivery of
local investment management as part of a portfolio solution and local
distribution and marketing. In South Africa, we have assembled an investment
advisory team that markets institutional asset management programs to pension
and insurance industries. Established investment advisory firms in Argentina and
Mexico offer asset management services to high-net-worth investors. Joint
ventures in Taiwan and Korea offer asset management solutions to institutions
and high-net-worth individuals.

In Canada, we support money managers in managing their clients' investments
through investment performance evaluation services, as well as trading cost
analysis and marketing strategy review. The market for our consulting services
consists mainly of defined benefit plan sponsors and investment managers located
in Canada. At December 31, 1999, we were providing consulting services to
approximately 380 defined benefit plan sponsors and investment managers. Fund
sponsor and money manager clients remit payment for performance evaluation and
consulting services in cash or, subject to applicable regulatory guidelines, by
directing brokerage commissions to SIDCO or SEI, Inc. through SEI-approved
clearing agents or clearing brokers. These clients may also apply a portion of
such directed brokerage commissions to defray certain other third-party costs.
As a result of the directed brokerage business, revenues may be affected by
changes in market trading volume or changes in government regulations affecting
directed brokerage payments.

The global market for financial services is highly competitive. Entering into a
foreign market requires a shift in perspective from a United States focus to
that of the other country. In addition, consideration must be given to the
regulatory and financial constraints that exist in a foreign market. Finally, it
can be difficult to overcome recognition and branding hurdles caused by lack of
a track record in a particular market. We attempt to overcome these obstacles by
purchasing or partnering with a local firm who already has an established
presence in the market. This also helps us in making decisions about product
packaging and distribution strategies because we get access to a staff that
understands the culture. Revenues from other investment products and services
accounted for approximately 5 percent of consolidated revenues in 1999.

                                                                               8
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Other

Equity Investments in Investees
- -------------------------------

LSV Asset Management ("LSV"), is a partnership formed between SEI and three
leading academics in the field of finance. LSV, a registered investment advisor,
provides investment advisory services to institutions, including pension plans
and investment companies. LSV is a value-oriented, contrarian money manager that
offers a deep-value investment alternative. LSV utilizes a proprietary equity
investment model to identify securities that are generally considered to be out
of favor. LSV identifies stocks that exhibit below-average market expectations
for future growth because these stocks typically produce superior future returns
as their growth exceeds the pessimistic expectation of the market. LSV is
currently the specialist-advisor to a portion of SEI Large Cap Value Fund and
SEI Small Cap Value Fund. In addition, LSV is a portfolio manager to a portion
of our global investment products. Approximately 20 percent of the total assets
managed by LSV relate to our products. At December 31, 1999, our interest
represented approximately 47 percent of the partnership's total interests.

Marketing and Sales
- -------------------

We employ 17 sales representatives in Technology Services, 56 sales
representatives in Asset Management, 22 sales representatives in Mutual Fund
Services, and 28 sales representatives in Investments in New Business. These
sales personnel operate from 19 offices located in Oaks, Pennsylvania; San
Francisco and Irvine, California; Chicago, Illinois; Boston, Massachusetts; New
York, New York; Dallas, Texas; Norcross, Georgia; Toronto, Ontario; Montreal,
Quebec; Vancouver, British Columbia; Halifax, Nova Scotia; Zurich, Switzerland;
Dublin, Ireland; Johannesburg, South Africa; Central Hong Kong, Hong Kong;
Buenos Aires, Argentina, Mexico City, Mexico; and Berkeley Square, London,
United Kingdom.

Customers
- ---------

We currently serve approximately 4,200 clients. For the year ended December 31,
1999, no single customer accounted for more than 10 percent of revenues in any
industry segment.

Development of New Products and Services
- ----------------------------------------

         Software products

Service to existing and potential customers is enhanced by substantial
investment in improving existing software products and developing new products
and services for the financial industry. To sustain and enhance our competitive
position in the industry, we are committed to a continuous and high level of
expenditures for research and development. We currently utilize 290
professionals dedicated to the design, development, and enhancement of our
software products. New products are released when they are completed.
Maintenance releases generally occur three times each year.

Banks are demanding technology tools to enhance their relationships with their
investors. Our new Internet access products, which run in a service bureau
environment, represent a new area of business within our bank technology
business. StrataWeb(TM) is our Internet solution for accessing trust
information. It provides clients' customers the ability to access real-time
account information via the Internet. StrataWeb reduces the number of inquiry
related phone calls and has e-mail capabilities, customizable features and a
secure website which can be integrated with a client's website.

TreasuryPoint is our first business-to-business e-commerce site that provides
the tools that treasury and finance professionals need to make and execute
balance sheet decisions. The public internet site was introduced this year and
its first service, a cash flow Optimizer, will be introduced in 2000. The
Optimizer will help clients to improve their daily investment and borrowing
process, enhance their overall capabilities in the area of risk management, and
improve capital structure decisions. Real-time market rates are combined with a
company's treasury policy, cash flow information, investment products and
borrowing lines to determine the best financial solution for the company to
implement each day. The second service to be offered will be an on-line trading
application that will enable users of the Optimizer to implement electronically
the investment decisions that the Optimizer makes. In addition, the application
will work independently to enable users to trade money market funds and short-
term fixed income securities over the Internet.

                                                                               9
<PAGE>

We expended, including amounts capitalized, approximately $42,788,000 (9.4
percent of revenues) in 1999, $24,866,000 (6.8 percent of revenues) in 1998, and
$22,500,000 (7.7 percent of revenues) in 1997 to design, develop, and modify
existing or new products and services.

         Investment products

Significant growth opportunities exist in the investment management industry by
expanding the distribution of asset management solutions to institutions and
high-net-worth investors outside North America. Our strategy is designed to
capitalize on three major trends in the global marketplace: (1) the
privatization and globalization of pension funds, (2) the increased wealth
accumulation among high-net-worth investors, and (3) the elimination of barriers
to global investing.

Our marketing efforts have focused on three main regions: Europe/South Africa,
Asia, and Latin America. The initial strategy is to team with local partners to
establish name recognition and distribution channels for our products and
services. Our global asset management group has made major progress toward the
creation of a distribution network during the past four years, including the
establishment of an offshore fund family in Ireland, the acquisition of
investment advisory firms in Argentina and Mexico, a joint venture in Taiwan and
Korea, and asset management contracts signed with European pension plans and
several South African institutions. We have also opened an office in the United
Kingdom and are starting a joint venture with a French asset management holding
company.

         Year 2000

We began work on the Year 2000 issue in 1995 with management recognition that
failure to acknowledge, analyze and remediate potential Year 2000 processing
issues could result in material consequences to our clients and to the
perpetuation of our own business. Initially, we focused our Year 2000 efforts on
an assessment of our TRUST 3000 product line. During 1997, a Corporate Year 2000
Committee began to review all vendors, internally used systems, and any other
item that could be affected by the Year 2000. The Year 2000 program encompassed
all system hardware and software, physical facilities, utilities, electronic
equipment and communications, as well as all other ancillary purchased products
and services. Our Year 2000 program process fully subscribed to the Federal
Financial Institutions Examination Council guidelines.

Our contingency planning efforts focused on the most critical business functions
and varied significantly based on the TRUST 3000 system and how it operates. The
contingency strategy for our own proprietary products, which includes TRUST
3000, focused on additional planned resources to react in the Year 2000. A plan
existed to identify, correct and release Year 2000 related core and custom
problems. Clients were apprised of the plan and advised on appropriate data
retention. There were no critical Year 2000 issues as all infrastructure systems
and hardware were operational. No critical data integrity issues or client
access or service problems were reported (See Assessment of the Transition into
the Year 2000 in Management's Discussion and Analysis of Financial Condition and
Results of Operations).


Regulatory Considerations

SIDCO and SIMC are subject to various federal and state laws and regulations
that grant supervisory agencies, including the SEC, broad administrative powers.
In the event of a failure to comply with such laws and regulations, the possible
sanctions that may be imposed include the suspension of individual employees,
limitations on SIDCO's or SIMC's engaging in business for specified periods of
time, the revocation of SIDCO's or SIMC's registration as a broker-dealer or
investment advisor, censures, and fines. SEI Trust is subject to laws and
regulations imposed by state banking authorities. In the event of a failure to
comply with these laws and regulations, limitations may be placed on the
business of SEI Trust, or its license as a trust company may be revoked.

We offer investment products that are also subject to regulation by the SEC and
state securities authorities, as well as non-U.S. regulatory authorities, where
applicable. Existing or future regulations that affect these investment vehicles
or their investment strategies could impair their investment performance and
lead to a reduction in sales of such investment products. Directed brokerage
payment arrangements offered by us are also subject to SEC and other federal
regulatory authorities. Changes in the regulation of directed brokerage or soft
dollar payment arrangements could affect sales of some services, primarily our
brokerage and consulting services.


                                                                              10
<PAGE>

Bank clients are subject to supervision by federal and state banking authorities
concerning the manner in which such clients purchase and receive our products
and services. Plan sponsor clients are subject to supervision by the Department
of Labor and compliance with employee benefit regulations. Investment advisor
clients are regulated by the SEC and state securities authorities. Existing or
future regulations applicable to our clients may affect such clients' purchase
of our products and services.

Personnel
- ---------

At February 29, 2000, we had approximately 1,450 full-time and 100 part-time
employees. None of our employees are represented by a labor union. Management
considers employee relations to be good.


Item 2.  Properties.
         ----------

Our corporate headquarters is located in Oaks, Pennsylvania. The corporate
campus consists of six buildings situated on approximately 90 acres. We own and
operate the land and buildings, which encompasses approximately 265,000 square
feet. Our data center and warehouse facility is housed in an additional 70,000
square feet of leased space in Wayne, Pennsylvania. We also lease an additional
67,500 square feet of space in Wayne for our mutual funds operation. All other
offices that we lease aggregate 72,000 square feet. Additionally, we own a New
York City condominium (3,400 square feet) used for business purposes.

Item 3.  Legal Proceedings.
         -----------------

There are no legal proceedings to which we are a party or to which any of our
properties is subject which are expected to have a material adverse effect on
our business.

Item 4.  Submission of Matters to a Vote of Security Holders.
         ---------------------------------------------------

There were no matters submitted to a vote of security holders during the fourth
quarter of 1999.

Information with regard to our executive officers is contained in Item 10 hereof
and is incorporated by reference to this Part I.

                                                                              11

<PAGE>

                                    PART II

Item 5.  Market for the Registrant's Securities and Related Stockholder Matters.
         ----------------------------------------------------------------------

Price Range of Common Stock:
- ---------------------------

SEI's common stock is traded in the NASDAQ National Market System under the
symbol SEIC. The following table shows the range of closing sales prices on the
NASDAQ National Market System for the periods indicated.

1999                          High                      Low
- ----                          ----                      ---

First Quarter                119 1/4                  90
Second Quarter               106                      78
Third Quarter                103 1/2                  89 1/4
Fourth Quarter               129                      77 3/8



1998                          High                      Low
- ----                          ----                      ---

First Quarter                 69                       37
Second Quarter                76                       61
Third Quarter                 80 1/2                   59 5/16
Fourth Quarter               100 1/2                   50 1/4



As of February 29, 2000, there were approximately 1,500 shareholders of record.
The Board of Directors declared a $.20 dividend in May and December of 1999, and
a $.16 dividend in May and December of 1998. The Board of Directors has
indicated its intention to pay future dividends on a semiannual basis.

                                                                              12

<PAGE>

Item 6.  Selected Financial Data.
         -----------------------
(In thousands, except per share data)

The following table summarizes selected financial data for the five years in the
period ended December 31, 1999. The historical selected financial data for each
of the five years in the period ended December 31, 1999 are derived from, and
are qualified by reference to, the financial statements which are included with
Item 8 in this report. These financial statements have been audited by Arthur
Andersen LLP, independent public accountants, to the extent indicated in their
reports. This data should be read in conjunction with the financial statements
and "Management's Discussion and Analysis of Financial Condition and Results of
Operations" included in this report.

<TABLE>
<CAPTION>
For the Year                                                 1999          1998           1997        1996           1995(A)
- -----------------------------------------------------------------------------------------------------------------------------
<S>                                                      <C>            <C>           <C>            <C>            <C>
Revenues............................................     $  456,192     $ 366,119     $  292,749     $ 247,817      $ 225,964
Expenses:
   Operating and development........................        215,216       180,937        148,536       129,776        115,366
   Sales and marketing..............................        126,184       103,834         84,770        68,719         58,892
   General and administrative.......................         12,298        13,463         13,931        13,235         16,963
                                                         ----------     ---------     ----------     ---------      ---------

Income from operations..............................        102,494        67,885         45,512        36,087         34,743
Gain on sale of investments available for sale......             --            --             --         1,097             --
Equity in the earnings of unconsolidated affiliate..          6,765         3,015             --            --             --
Interest income.....................................          2,285         1,558            983           808          1,019
Interest expense....................................         (2,375)       (2,575)        (2,488)          (48)          (255)
                                                         ----------     ---------     ----------     ---------      ---------
Income from continuing operations
   before income taxes..............................        109,169        69,883         44,007        37,944         35,507
Income taxes........................................         42,030        26,904         17,163        14,798         14,381
                                                         ----------     ---------     ----------     ---------      ---------
Income from continuing operations...................         67,139        42,979         26,844        23,146         21,126
Loss from discontinued operations...................             --            --             --            --         (1,942)
Income (loss) from disposal of
   discontinued operations..........................          1,292           710             --       (16,335)            --
                                                         ----------     ---------     ----------     ---------      ---------
Net income..........................................     $   68,431     $  43,689     $   26,844     $   6,811      $  19,184
- -----------------------------------------------------------------------------------------------------------------------------
Basic earnings per common share from
   continuing operations............................     $     3.78     $    2.41     $     1.47     $    1.25      $    1.14
Basic earnings (loss) per common share from
   discontinued operations..........................            .07           .04             --          (.88)          (.11)
                                                         ----------     ----------    ----------     ---------      ---------
Basic earnings per common share.....................     $     3.85     $    2.45     $     1.47     $     .37      $    1.03
Shares used to calculate basic earnings per
   common share.....................................         17,772        17,827         18,315        18,497         18,607
- -----------------------------------------------------------------------------------------------------------------------------
Diluted earnings per common share from
   continuing operations............................     $     3.54     $    2.25     $     1.40     $    1.20      $    1.08
Diluted earnings (loss) per common share from
   discontinued operations..........................            .07           .04             --          (.85)          (.10)
                                                         ----------     ----------    ----------     ---------      ---------
Diluted earnings per common share...................     $     3.61     $    2.28     $     1.40     $     .35      $     .98
Shares used to calculate diluted earnings per
   common share.....................................         18,971        19,126         19,236        19,364         19,554
- -----------------------------------------------------------------------------------------------------------------------------
Cash dividends declared per common share............     $      .40     $     .32     $      .28     $     .24      $     .20
- -----------------------------------------------------------------------------------------------------------------------------
Year-end Financial Position:
Cash and cash equivalents...........................     $   73,206     $  52,980     $   16,891     $  13,167      $  10,256
Total assets........................................     $  253,779     $ 208,772     $  168,884     $ 141,041      $ 101,347
Short-term borrowings...............................     $       --     $      --     $       --     $  20,000      $      --
Long-term debt (including short-term portion).......     $   31,000     $  33,000     $   35,000     $      --      $      --
Shareholders' equity................................     $   79,002     $  59,685     $   46,410     $  56,108      $  56,002
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>

(A)  Information for 1995 has been reported to reflect the SEI Capital Resources
     Division and the SEI Defined Contribution Retirement Services Division as
     discontinued operations. See Note 2 of the Notes to Consolidated Financial
     Statements.

                                                                              13

<PAGE>

Item 7.  Management's Discussion and Analysis of Financial Condition and Results
         -----------------------------------------------------------------------
         of Operations.
         -------------
                     (In thousands, except per share data)

This discussion reviews and analyzes the consolidated financial condition at
December 31, 1999 and 1998, the consolidated results of operations for the past
three years, and other factors that may affect future financial performance.
This discussion should be read in conjunction with the Consolidated Financial
Statements, Notes to the Consolidated Financial Statements and Selected
Financial Data.

We are organized around our four business lines: Technology Services, Asset
Management, Mutual Fund Services, and Investments in New Business. Financial
information on each of these segments is reflected in Note 11 of the Notes to
Consolidated Financial Statements included with item 8 to this report.

Results of Operations
- ---------------------

1999 Compared with 1998

Consolidated Overview
- ---------------------

<TABLE>
<CAPTION>
Income Statement Data
(In thousands, except per common share data)                                                             PERCENT
                                                                        1999               1998           CHANGE
                                                                        ----               ----           ------
<S>                                                                    <C>                <C>            <C>
Revenues:
   Technology Services.....................................            $184,759           $167,484          10%
   Asset Management........................................             138,365             90,056          54%
   Mutual Fund Services....................................             110,083             95,136          16%
   Investments in New Business.............................              22,985             13,443          71%
                                                                       --------           --------
     Total revenues........................................            $456,192           $366,119          25%

Operating Income (Loss):
   Technology Services.....................................            $ 61,022           $ 46,793          30%
   Asset Management........................................              40,185             19,881         102%
   Mutual Fund Services....................................              24,221             24,993          (3%)
   Investments in New Business.............................             (10,636)           (10,319)         (3%)
   Other...................................................             (12,298)           (13,463)          9%
                                                                       --------           --------
     Income from operations................................             102,494             67,885          51%

Other income, net..........................................               6,675              1,998         234%
                                                                       --------           --------
Income from continuing operations
   before income taxes.....................................             109,169             69,883          56%

Income taxes...............................................              42,030             26,904          56%
                                                                       --------           --------
Income from continuing operations..........................            $ 67,139           $ 42,979          56%
                                                                       ========           ========
Diluted earnings per common share
   from continuing operations..............................            $   3.54           $   2.25          57%
                                                                       ========           ========
</TABLE>

Revenues and earnings from continuing operations reached a new record level in
1999, primarily from new business in Technology Services and Asset Management.
Technology Services operating results reflect increases in recurring processing
fees generated from new clients and the delivery of new products to our existing
clients. Asset Management operating results were boosted by significant
increases in assets under management from new and existing clients in our
investment advisory and institutional asset management businesses. Comparative
results reflect an unusually large one-time revenue event in 1998, that was
triggered by the acquisition of one of our largest technology clients that
resulted in the recognition of a substantial contractual buyout fee. Excluding
this 1998 one-time item, total revenues actually increased 29 percent and
earnings per share increased 69 percent. Revenues and earnings are expected to
increase assuming the sales momentum in Asset Management can be sustained and we
can continue to generate new business and cross-sell new and existing products
in Technology Services. However, continued consolidation in the banking industry
or a prolonged unfavorable change in the financial securities markets could
impede growth in revenues and earnings.

                                                                              14
<PAGE>

The effective tax rate from continuing operations was 38.5 percent for 1999 and
1998. Income taxes are accounted for according to Statement of Financial
Accounting Standards No. 109, "Accounting for Income Taxes" (See Note 1 and Note
10 of the Notes to Consolidated Financial Statements).

Asset Balances
(In millions)

<TABLE>
<CAPTION>
                                                                          As of December 31,             PERCENT
                                                                          ------------------
                                                                       1999                1998           CHANGE
                                                                       ----                ----           ------
<S>                                                                   <C>                <C>              <C>
Assets invested in equity and fixed income programs........           $  41,695          $  24,994          67%
Assets invested in liquidity funds.........................              22,556             19,971          13%
                                                                       --------           --------
   Assets under management.................................              64,251             44,965          43%

Client proprietary assets under administration.............             170,787            133,407          28%
                                                                       --------           --------
   Assets under administration.............................           $ 235,038          $ 178,372          32%
                                                                       ========           ========
</TABLE>

Assets under management consist of total assets for which we provide management
services that are invested in our liquidity (money market and short-term mutual
funds) and non-liquidity mutual funds (SEI Family of Funds). Assets under
administration consist of total assets for which we provide management and
administration services, including client proprietary fund balances for which we
provide administration and/or distribution services.


Technology Services
- -------------------

The Technology Services segment provides trust technology outsourcing to banks
and other financial institutions with our TRUST 3000 product line. TRUST 3000
includes a myriad of integrated products and sub-systems that provide a complete
investment accounting and management information system for trust institutions.

Trust operations outsourcing incorporates the TRUST 3000 product line within a
package of services that includes investment management, custody and other
back-office capabilities. Through this business, we handle a trust department's
back-office administration function. This allows trust institutions to
concentrate on expanding and servicing their clients.

<TABLE>
<CAPTION>
                                                                                          DOLLAR            PERCENT
                                                        1999              1998            CHANGE             CHANGE
                                                        ----              ----            ------             ------
<S>                                                   <C>                <C>              <C>               <C>
Revenues:
Trust technology services.................            $163,465           $150,961           $12,504            8%
Trust operations outsourcing..............              21,294             16,523             4,771           29%
                                                      --------           --------           -------
     Total revenues.......................             184,759            167,484            17,275           10%

Expenses:
Operating and development.................              92,763             91,175             1,588            2%
Sales and marketing.......................              30,974             29,516             1,458            5%
                                                      --------           --------           -------

     Total operating profits..............            $ 61,022           $ 46,793           $14,229           30%
                                                      ========           ========            ======
     Profit margin........................               33%                28%                  --           --
</TABLE>

Trust technology services revenues are primarily generated from monthly
processing and software application fees from our TRUST 3000 product line and
project fees associated with the conversion of new clients onto our TRUST 3000
product line. There was an unusually large one-time revenue event in late 1998
that was triggered by the acquisition of one of our largest technology clients
by a third party. As a result, revenues in 1998 included $12.9 million in
one-time contractual buyout fees associated with the loss of this one client.
Excluding the effects of this one-time fee, trust technology services revenues
actually increased $25.4 million or 18 percent. Trust technology services
revenues increased due to growth in recurring processing fees and project fees
generated from new clients that had purchased our products and services in prior
years, as well as from new products implemented for existing clients. Recurring
processing fees increased $19.1 million or 24 percent and project fees

                                                                              15
<PAGE>

increased $7.7 million or 29 percent. We expect an increase in recurring
processing fees through the delivery of new products and services to our
existing clients and the contracting of new clients for processing services. We
are currently reviewing strategies to expand the delivery of our trust
technology services into the non-bank and offshore markets. Penetrating these
new markets could provide many new opportunities. However, consolidations within
the banking industry continues to be a major strategic issue facing this
segment.

Our trust operations outsourcing business continued to generate new business in
1999. Revenues are derived from processing and management fees. Revenues earned
from processing services accounts for approximately 50 percent of total trust
operations outsourcing revenues in 1999 and 57 percent in 1998, while investment
services comprise the remaining 50 percent in 1999 and 43 percent in 1998. This
shift in revenues can be attributed to growth in assets from existing clients
and an increase in sales for investment services in the community and regional
bank markets. We anticipate this trend will continue. We are currently expanding
our trust operations outsourcing efforts beyond the community and regional bank
markets because we believe that our trust operations outsourcing service is an
attractive alternative to any trust institution faced with the task of building
the necessary infrastructure to support the delivery of trust services.

Operating profits and profit margin for Technology Services increased
substantially during 1999. Operating profits and profit margin in 1998 were
inflated by the inclusion of the significant one-time buyout fee previously
discussed. This one-time event contributed approximately $8.0 million to
operating profits in 1998. Excluding the effect of this one-time event,
operating profits actually increased 57 percent. The increase in operating
profits and profit margin reflect increased system sales in the large bank
market over the last few years and back-office sales in the community bank
market. In addition, our current infrastructure allows us to carefully manage
expenses over a higher net incremental recurring revenue base. As a percentage
of sales, operating and development expenses decreased to 50 percent from 54
percent while sales and marketing expenses decreased slightly to 17 percent from
18 percent.


Asset Management
- ----------------

The Asset Management segment provides investment solutions through various
investment products and services distributed directly or through professional
investment advisors, financial planners, and other financial intermediaries to
institutional or high-net-worth markets. The primary products offered include
money market funds and diversified investment strategies and portfolios
delivered to these markets through mutual funds and other pooled vehicles.

<TABLE>
<CAPTION>
                                                                                              DOLLAR        PERCENT
                                                       1999                1998               CHANGE         CHANGE
                                                       ----                ----               ------         ------
<S>                                                   <C>                 <C>               <C>             <C>
Revenues:
Investment management fees................            $120,291            $75,669           $44,622            59%
Liquidity management fees.................              18,074             14,387             3,687            26%
                                                      --------             ------           -------
     Total revenues.......................             138,365             90,056            48,309            54%

Expenses:
Operating and development.................              38,153             25,672            12,481            49%
Sales and marketing.......................              60,027             44,503            15,524            35%
                                                      --------             ------           -------

     Total operating profits..............             $40,185            $19,881           $20,304           102%
                                                      ========             ======           =======

     Profit margin........................               29%                22%                  --            --
</TABLE>

Investment management fees are earned through management fees that are based
upon a fixed percentage, referred to as basis points, of the average daily net
asset value of assets under management. Investment management fees increased 59
percent due to strong asset growth in both our investment advisory and
institutional asset management businesses. Additionally, the favorable trend
experienced in the financial securities markets during 1999 partially
contributed to the growth in assets under management. Average assets under
management increased $8.0 billion or 54 percent to $22.7 billion during 1999, as
compared to $14.7 billion during 1998. In our investment advisory business, we
continue to be successful at recruiting new registered investment advisors. We
established approximately 2,200 new registered investment advisor relationships
during 1999, bringing our total network to almost 5,700 advisors. We have also
been working closely with our existing

                                                                              16
<PAGE>

advisors to assist them in expanding their existing client base through the
introduction of new investment options and programs. Our institutional asset
management business also experienced strong business growth during 1999. We
established 42 new institutional client relationships during 1999, of which nine
new relationships funded over $100 million each. These new relationships
included defined benefit plans, defined contribution plans, endowments and
foundations. We anticipate continued growth in this segment through the
generation of new business and the delivery of new investment products and
services.

Liquidity management fees consist of our money market, short-term mutual funds
and cash sweep technology that are marketed to corporations and investment
firms. The 26 percent increase in liquidity management fees was mainly driven by
an increase in average assets under management and increased sales of the cash
sweep technology product. Average assets under management increased $2.1 billion
or 66 percent to $5.3 billion during 1999, as compared to $3.2 billion during
1998. We successfully recruited 42 new cash sweep technology clients and 29 new
institutional clients during 1999. However, short-term interest rate volatility
slowed the use of money market funds during 1999 which dampened the growth in
liquidity management fees.

Operating profits and profit margin increased substantially during 1999. Profit
margin improvement resulted from two primary factors. First, our ability to
continually leverage on our existing infrastructure allowed us to increase
revenues while controlling variable operating costs. As a percentage of sales,
operating and development expenses decreased to 28 percent from 29 percent and
sales and marketing expenses decreased to 43 percent from 49 percent. Second, we
introduced new investment programs and initiatives to our existing clients. This
provided opportunities to generate additional revenues from our existing client
base. The current trend in revenues, profits and profit margin improvement is
projected to continue in 2000. We are optimistic about our asset management
business as we can continue to leverage expenses over higher net incremental
assets and introduce new investment products and services into new and existing
markets. However, any significant devaluation in the financial securities
markets could negatively affect revenues and profits.


Mutual Fund Services
- --------------------

The Mutual Fund Services segment provides administration and distribution
services to proprietary mutual funds created for banks, insurance firms, and
investment management companies. These services include fund administration and
accounting, legal services, shareholder recordkeeping, and marketing.

<TABLE>
<CAPTION>
                                                                                           DOLLAR            PERCENT
                                                        1999                1998           CHANGE             CHANGE
                                                        ----                ----           ------             ------
<S>                                                   <C>                 <C>               <C>               <C>
Revenues..................................            $110,083            $95,136          $ 14,947             16%

Expenses:
Operating and development.................              68,759             53,794            14,965             28%
Sales and marketing.......................              17,103             16,349               754              5%
                                                      --------            -------          --------

     Total operating profits..............            $ 24,221            $24,993          $   (772)            (3%)
                                                      ========            =======          ========

     Profit margin........................                  22%                26%               --             --
</TABLE>

Mutual fund services revenues are earned through administrative and distribution
fees that are based upon a fixed percentage, referred to as basis points, of the
average daily net asset value of the proprietary funds. The amount of basis
points earned is specific to each proprietary fund complex and can vary among
complexes. The increase in revenues was fueled by growth in average proprietary
fund balances, which increased $45.8 billion or 44 percent to $149.2 billion
during 1999 versus $103.4 billion during 1998. Average proprietary fund balances
increased primarily due to growth in existing large bank complexes. Also, an
increased presence in the non-bank and offshore markets has yielded positive
returns during 1999. A significant portion of the growth in average assets
during 1999 can be attributed to non-bank and offshore clients. However,
revenues were negatively affected by a decrease in average basis points earned
because of fee concessions extended to existing clients in exchange for
longer-term contracts and a reduction in the range of certain services to large
bank clients. The outlook for mutual fund services revenues remains optimistic.
We will continue to aggressively focus our efforts in the non-bank and offshore
markets. Initially, each of these new clients will not generate as much revenue
as a large bank complex, but we believe this is a growing market that has
significant growth potential.

                                                                              17
<PAGE>

Although revenues increased 16 percent, operating profits and profit margin
decreased in 1999, primarily from reduced fees from large bank clients and from
a significant increase in operating and development expenses. As a percentage of
sales, operating and development expenses increased to 62 percent from 57
percent. This increase reflects our critical investments to support our
initiatives in the non-bank and offshore markets and to develop new technology
that will differentiate our services in an increasingly commoditized product
area. We believe that the non-bank and offshore markets hold the greatest growth
potential in the upcoming years. Our ability to provide unique and specialized
services should generate many additional opportunities to increase revenues and
improve profit margin. However, continued consolidations and possible further
margin pressure in the large bank sector could have an adverse effect on future
revenues and profits.


Investments in New Business
- ---------------------------

Investments in New Business consist of our international asset management
initiatives and Canadian operations. Our international operations incorporate
various investment products and services to provide investment solutions to
institutional and high-net-worth investors outside North America. Products being
offered in Canada include investment advisory, performance evaluation and other
consulting services to Canadian pension plans.

<TABLE>
<CAPTION>
                                                                                             DOLLAR          PERCENT
                                                        1999                1998             CHANGE           CHANGE
                                                        ----                ----             ------           ------
<S>                                                   <C>                <C>                <C>               <C>
Revenues..................................            $ 22,985           $ 13,443           $ 9,542             71%

Expenses:
Operating and development.................              15,541             10,296             5,245             51%
Sales and marketing.......................              18,080             13,466             4,614             34%
                                                      --------           --------           -------

     Total operating losses...............            $(10,636)          $(10,319)          $  (317)            (3%)
                                                      ========           ========           =======

     Profit margin........................                 (46%)              (77%)              --             --
</TABLE>

The following table displays revenues by geographic region as a percentage of
total segment revenues:

<TABLE>
<CAPTION>
                                                                                1999           1998
                                                                               -----          -----
<S>                                                                           <C>            <C>
Canada.............................................................              43%            76%
Europe/South Africa................................................              30%            16%
Asia...............................................................              19%            --
Latin America......................................................               8%             8%
                                                                              ------         ------

     Total.........................................................             100%           100%
</TABLE>

Our offshore enterprises are looking to capitalize on international growth
opportunities by creating distribution channels for our investment products and
services outside North America. Our efforts are currently focused on selected
regions: Europe/South Africa, Asia, and Latin America. These offshore
enterprises accounted for approximately 57 percent of total segment revenues in
1999, as compared to 22 percent in 1998. We experienced substantial revenue
growth in the European/South African and Asian regions. In the European/South
Africa region, we introduced an SEI-managed fund complex in association with
Mediolanum S.p.A, an Italian insurance company, into the Italian marketplace
earlier this year. Our Korean joint venture, which was initiated in March 1999,
accounts for all revenue growth in the Asian region. Average assets under
management from our offshore enterprises were $2.2 billion during 1999, as
compared to $438 million during 1998.

                                                                              18
<PAGE>

Our Canadian operations continued to experience a transition in product demand.
The performance evaluation and consulting business experienced another year
where client terminations exceeded new client contracting. The investment
advisory business in Canada is gaining some momentum through the establishment
of several new relationships. Average assets under management in Canada were
$697 million during 1999, as compared to $412 million during 1998. The
performance evaluation and consulting business accounted for approximately 26
percent of total segment revenues in 1999, as compared to 57 percent in 1998.
The investment advisory business accounted for approximately 17 percent of total
segment revenues in 1999, as compared to 19 percent in 1998.

Although the pace of global asset gathering and revenue generation continued to
accelerate, we also accelerated the pace of our investment efforts, especially
in the European region. We opened a London office to address the United Kingdom
pension market and to create a platform for other planned European initiatives.
In addition, we have an agreement to form a joint venture with CCF, a large
French universal banking concern. This joint venture will bring our multi-
manager capabilities to the French market and to selected markets outside
France. We believe that global expansion is an area of significant long-term
growth for our firm. We will continue to make significant investments in our
global initiatives and expect to incur losses in 2000.


Other
- -----

Other includes our interest in the partnership LSV Asset Management ("LSV"). LSV
is a registered investment advisor which provides investment advisory services
to institutions, including pension plans and investment companies. LSV is
currently the portfolio manager for a number of SEI-sponsored investment
products. Our interest in LSV was approximately 47 percent during 1999 and
approximately 45 percent during 1998. Our vested interest in LSV's net earnings
for 1999 was $6,765, as compared to $3,015 for 1998. The increase in our portion
of LSV's net earnings was due to an increase in assets under management. Average
assets under management for LSV were $4.4 billion during 1999, as compared to
$2.6 billion during 1998.

General and administrative expenses decreased 9 percent to $12,298 for 1999 from
$13,463 for 1998. As a percentage of total consolidated revenues, general and
administrative expenses were 3 percent in 1999, as compared to 4 percent in
1998. The decrease in general and administrative expenses is primarily due to a
reduction in personnel and facility related costs in corporate overhead groups.

Interest income for 1999 was $2,285, as compared to $1,558 for 1998. Interest
income is earned based upon the amount of cash that is invested daily and
fluctuations in interest income recognized for one period in relation to another
is due to changes in the average cash balance invested for the period.

Interest expense for 1999 was $2,375, as compared to $2,575 for 1998. Interest
expense primarily relates to the issuance of long-term debt in early 1997 (See
Note 6 of the Notes to Consolidated Financial Statements).

                                                                              19
<PAGE>

1998 Compared with 1997

Consolidated Overview
- ---------------------

<TABLE>
<CAPTION>
Income Statement Data
(In thousands, except per common share data)                                                             PERCENT
                                                                        1998               1997           CHANGE
                                                                        ----               ----           ------
<S>                                                                    <C>                <C>             <C>
Revenues:
   Technology Services.....................................            $167,484           $129,525            29%
   Asset Management........................................              90,056             61,871            46%
   Mutual Fund Services....................................              95,136             83,157            14%
   Investments in New Business.............................              13,443             14,439            (7%)
   Other...................................................                  --              3,757          (100%)
                                                                       --------           --------
     Total revenues........................................            $366,119           $292,749            25%

Operating Income (Loss):
   Technology Services.....................................            $ 46,793            $37,146            26%
   Asset Management........................................              19,881              3,281           506%
   Mutual Fund Services....................................              24,993             23,858             5%
   Investments in New Business.............................             (10,319)            (5,799)          (78%)
   Other...................................................             (13,463)           (12,974)           (4%)
                                                                       --------            -------
     Income from operations................................              67,885             45,512            49%

Other income (expense), net................................               1,998             (1,505)          233%
                                                                       --------            -------
Income from continuing operations
   before income taxes.....................................              69,883             44,007            59%

Income taxes...............................................              26,904             17,163            57%
                                                                       --------            -------
Income from continuing operations..........................            $ 42,979            $26,844            60%
                                                                       ========            =======

Diluted earnings per common share
   from continuing operations..............................            $   2.25            $  1.40             61%
                                                                       ========            =======
</TABLE>


Revenues and earnings from continuing operations reached record levels in 1998
primarily due to the contracting of new trust technology clients, the
recognition of a substantial one-time buyout fee, and significant growth in fund
balances. Although consolidated revenues in 1998 were affected by the
recognition of significant one-time items, recurring revenues constitute
approximately 81 percent of total revenues. Technology Services and Asset
Management experienced significant increases in business activity beginning in
late 1997 and extending into 1998. The inclusion of significant one-time charges
and increased investments in several product lines curtailed earnings growth in
1998. Excluding the one-time buyout fee and one-time charges, revenue growth
would have approximated 21 percent and earnings growth would have approximated
37 percent.

The effective tax rate from continuing operations was 38.5 percent for 1998, as
compared to 39.0 percent for 1997. Income taxes are accounted for pursuant to
Statement of Financial Accounting Standards No. 109, "Accounting for Income
Taxes" (See Note 1 and Note 10 of the Notes to Consolidated Financial
Statements).

Asset Balances
(In millions)

<TABLE>
<CAPTION>
                                                                          As of December 31,              PERCENT
                                                                          ------------------
                                                                        1998                1997           CHANGE
                                                                        ----                ----           ------
<S>                                                                   <C>                <C>              <C>
Assets invested in equity and fixed income programs........           $  24,994          $  14,347            74%
Assets invested in liquidity funds.........................              19,971             17,950            11%
                                                                      ---------          ---------
   Assets under management.................................              44,965             32,297            39%

Client proprietary assets under administration.............             133,407             83,419            60%
                                                                      ---------          ---------
   Assets under administration.............................           $ 178,372          $ 115,716            54%
                                                                      =========          =========
</TABLE>

                                                                              20
<PAGE>

Technology Services
- -------------------


<TABLE>
<CAPTION>
                                                                                            DOLLAR            PERCENT
                                                        1998                1997            CHANGE            CHANGE
                                                        ----                ----            ------            ------
<S>                                                   <C>                <C>                <C>               <C>
Revenues:
Trust technology services.................            $150,961           $119,378           $31,583             26%
Trust operations outsourcing..............              16,523             10,147             6,376             63%
                                                      --------           --------           -------
     Total revenues.......................             167,484            129,525            37,959             29%

Expenses:
Operating and development.................              91,175             67,973            23,202             34%
Sales and marketing.......................              29,516             24,406             5,110             21%
                                                      --------           --------           -------

     Total operating profits..............            $ 46,793           $ 37,146           $ 9,647             26%
                                                      ========           ========           =======

     Profit margin........................                  28%                29%               --             --
</TABLE>

A significant one-time contractual buyout fee from a client involved in an
acquisition increased revenues in 1998. New trust technology client
relationships established in 1997 favorably affected recurring processing fees
by an incremental $9.3 million and nonrecurring implementation fees by an
incremental $6.0 million in 1998. Conversely, when a client prematurely
terminates its contract for processing services, recurring processing fees are
negatively affected in future periods and a one-time contractual buyout fee is
received. Buyout fees are recognized in income when the client is completely
removed from the TRUST 3000 product line. As a result of lost trust technology
clients in 1998, $15.0 million in one-time contractual buyout fees were
recognized and recurring processing fees decreased $7.0 million. Revenues earned
from bank clients utilizing our liquidity products and brokerage services
increased 45 percent or $8.8 million, but only accounts for approximately 19
percent of total trust technology services revenues recognized in 1998 and 16
percent in 1997.

Trust operations outsourcing revenues experienced another year of strong growth.
Revenues earned from processing services accounts for approximately 57 percent
in 1998 and 55 percent in 1997 of total trust operations outsourcing revenues,
while custody and investment solutions comprise the remaining 43 percent in 1998
and 45 percent in 1997.

Although revenues from this segment increased 29 percent and operating profits
increased 26 percent during 1998, profit margin decreased slightly to 28 percent
for 1998, as compared to 29 percent for 1997. The contracting of new clients and
the recognition of a substantial one-time buyout fee increased operating profits
in 1998. However, increases in operating expenses to maintain these new client
relationships and a one-time write-off of capitalized software development costs
negatively affected operating profits in 1998. As a percentage of sales,
operating and development expenses increased to 54 percent from 52 percent and
sales and marketing expenses decreased slightly to 18 percent from 19 percent.

Operating and development expenses in 1998 increased mainly due to increased
business activity, a stronger commitment to enhancing products, the write-off of
previously capitalized software development costs, and the direct correlation
between bank-related brokerage services revenues and direct expenses. The
contracting of new clients required additional personnel and other related
operating costs in order to properly implement, service, and maintain these new
relationships. Additionally, substantial investments were incurred to analyze
and improve the implementation process for new clients. These investments
included process redesign and infrastructure reinvention.

Operating and development expenses were significantly affected in 1998 due to
several factors associated with software development costs. First, each year, we
evaluate strategies for new and existing software products, as well as
performing a recoverability assessment of software development projects
currently in production. The recoverability assessment included an evaluation of
expected future revenues and cash flows, acceptability of the software product
in its target market, a cost-benefit analysis as to the delivery and support of
the software product, and any technological advancements that could enhance or
render the product obsolete. As a result, certain projects were considered
either obsolete or incapable of achieving the expected results in their original
design and approximately $4.8 million of net software development costs
previously capitalized were written off during the fourth quarter of 1998.
Second, in order to keep a competitive edge, substantial investments in research
and

                                                                              21
<PAGE>

development costs for the TRUST 3000 product line were incurred during 1998.
Finally, with the completion and subsequent release of several capitalized
software development projects, amortization expense increased during 1998.


Asset Management
- ----------------
<TABLE>
<CAPTION>
                                                                                            DOLLAR           PERCENT
                                                         1998               1997            CHANGE            CHANGE
                                                         ----               ----            ------            ------
<S>                                                    <C>                <C>               <C>              <C>
Revenues:
Investment management fees................             $75,669            $51,188           $24,481             48%
Liquidity management fees.................              14,387             10,683             3,704             35%
                                                       -------            -------           -------
     Total revenues.......................              90,056             61,871            28,185             46%

Expenses:
Operating and development.................              25,672             25,488               184              1%
Sales and marketing.......................              44,503             33,102            11,401             34%
                                                       -------            -------           -------

     Total operating profits..............             $19,881            $ 3,281           $16,600            506%
                                                       =======            =======           =======

     Profit margin........................                  22%                 5%               --             --
</TABLE>

Substantial increases in average assets under management generated the 48
percent increase in revenues. Average assets under management increased $5.1
billion or 53 percent to $14.7 billion during 1998, as compared to $9.6 billion
during 1997. Investment solutions offered to high-net-worth investors through
registered investment advisors, financial planners, and other financial
intermediaries produced strong sales gains during 1998. These gains result from
a unique product that allows the investment advisor to dedicate more effort to
increasing assets rather than administering record-keeping and processing tasks.
Additionally, many new institutional clients were contracted for services in
1998.

Liquidity management fees consist of our money market, short-term mutual funds
and cash sweep technology that are marketed to corporations and investment
firms. The 35 percent increase in liquidity management fees was mainly driven by
an increase in average assets under management and increased sales of the cash
sweep technology product.

The Asset Management segment experienced a significant increase in operating
profits primarily due to growth in assets under management. Profit margin in
1998 also improved substantially. Profit margin rose to 22 percent for 1998, as
compared to 5 percent for 1997. As a percentage of sales, operating and
development expenses decreased to 29 percent from 41 percent and sales and
marketing expenses decreased to 49 percent from 54 percent. Our ability to
leverage on our infrastructure resulted in improved margins as revenues
increased with minimal incremental variable operating costs.


Mutual Fund Services
- --------------------

<TABLE>
<CAPTION>
                                                                                            DOLLAR           PERCENT
                                                        1998                1997            CHANGE           CHANGE
                                                        ----                ----            ------           ------
<S>                                                    <C>                <C>               <C>              <C>
Revenues..................................             $95,136            $83,157           $11,979             14%

Expenses:
Operating and development.................              53,794             44,173             9,621             22%
Sales and marketing.......................              16,349             15,126             1,223              8%
                                                       -------            -------           -------

     Total operating profits..............             $24,993            $23,858           $ 1,135              5%
                                                       =======            =======           =======

     Profit margin........................                  26%                29%               --             --
</TABLE>

                                                                              22
<PAGE>

The increase in revenues was primarily fueled by growth in existing complexes
and the conversion of a large bank complex in 1998. Average proprietary fund
balances increased $30.1 billion or 41 percent to $103.4 billion for 1998 versus
$73.3 billion for 1997. Growth in average proprietary fund balances resulted
from banks being able to successfully convince their customers to invest assets
into bank sponsored mutual funds. Average basis points earned decreased in 1998
primarily due to a reduction in pricing for some larger clients in order to
solidify long-term relationships and the loss of some higher margin
relationships.

Although revenues increased 14 percent, operating profits only increased 5
percent. Profit margin in 1998 decreased to 26 percent, as compared to 29
percent for 1997. A significant increase in operating and development expenses
negatively affected operating profits in 1998. As a percentage of sales,
operating and development expenses increased to 57 percent from 53 percent. Two
primary factors contributed to this increase. There is a direct correlation
between revenues and certain direct expenses. The increase in revenues during
1998 generated an incremental $7.0 million in direct proprietary expenses. Also,
with the increased business activity and emphasis on other markets, back-office
operational costs increased in order to maintain quality service for existing
clients and to establish distribution channels and name recognition
internationally. As a percentage of sales, sales and marketing expenses remained
relatively flat for 1998 and 1997.


Investments in New Business
- ---------------------------

<TABLE>
<CAPTION>
                                                                                               DOLLAR        PERCENT
                                                        1998                1997               CHANGE         CHANGE
                                                        ----                ----               ------         ------
<S>                                                   <C>                 <C>               <C>              <C>
Revenues..................................            $ 13,443            $14,439           $  (996)            (7%)

Expenses:
Operating and development.................              10,296              8,102             2,194             27%
Sales and marketing.......................              13,466             12,136             1,330             11%
                                                       -------            -------            ------

     Total operating losses...............            $(10,319)           $(5,799)          $(4,520)           (78%)
                                                       =======            =======           =======

     Profit margin........................                 (77%)              (40%)              --             --
</TABLE>

Our Canadian operations are experiencing a transition in product demand. The
performance evaluation and consulting business experienced another year where
client terminations exceeded new client contracting. The investment advisory
business in Canada is gaining momentum as evidenced by revenues and assets under
management increasing in 1998. As a percentage of total segment revenues, the
performance evaluation and consulting business accounted for approximately 57
percent in 1998, as compared to 62 percent in 1997, and the investment advisory
business accounted for approximately 19 percent in 1998, as compared to only 8
percent in 1997.

Our offshore enterprises are looking to capitalize on international growth
opportunities by creating distribution channels for our investment products and
services outside North America. Our efforts are focused on selected regions:
Europe/South Africa, Asia, and Latin America. As a percentage of total segment
revenues, these offshore enterprises accounted for approximately 22 percent in
1998, as compared to 16 percent in 1997.

Operating results were affected by substantial investments made in foreign
markets. Our strategy is to team with local partners to establish name
recognition and distribution channels for our investment products and services.
Additionally, operating results were negatively affected by $2.7 million
associated with the write-off of customer lists from a foreign acquisition.

                                                                              23
<PAGE>

Other
- -----

Other includes our interest in the partnership LSV Asset Management ("LSV"). LSV
is a registered investment advisor which provides investment advisory services
to institutions, including pension plans and investment companies. LSV is the
portfolio manager to several SEI-sponsored investment products. In 1997, our
interest in LSV was 51 percent and was consolidated into our operating results.
LSV reported $3,757 in total revenues and operating profits of $957.

Beginning in the first quarter of 1998, our interest in LSV was reduced to
approximately 45 percent. As a result, LSV was accounted for using the equity
method of accounting. The vested interest in the net operating results of LSV
for 1998 is reflected in Equity in the earnings of unconsolidated affiliate on
the accompanying Consolidated Statements of Operations. Our interest in LSV's
net earnings for 1998 was $3,015.

General and administrative expenses decreased 3 percent to $13,463 for 1998 from
$13,931 for 1997. As a percentage of total consolidated revenues, general and
administrative expenses were 4 percent in 1998, as compared to 5 percent in
1997. The decrease in general and administrative expenses is primarily due to a
reduction in personnel costs in corporate overhead groups.

Interest income for 1998 was $1,558, as compared to $983 for 1997. Interest
income is earned based upon the amount of cash that is invested daily and
fluctuations in interest income recognized for one period in relation to another
is due to changes in the average cash balance invested for the period.

Interest expense for 1998 was $2,575, as compared to $2,488 for 1997. Interest
expense primarily relates to the issuance of long-term debt in early 1997 (See
Note 6 of the Notes to Consolidated Financial Statements).

                                                                              24
<PAGE>

Liquidity and Capital Resources
- -------------------------------

<TABLE>
<CAPTION>
                                                         1999      1998       1997
                                                         ----      ----       ----
<S>                                                    <C>       <C>        <C>
Net cash provided by operating activities............  $ 92,896  $ 99,869   $ 46,537
Net cash used in investing activities................   (21,829)  (31,702)   (21,854)
Net cash used in financing activities................   (50,841)  (32,078)   (20,959)
                                                       --------  --------   --------
Net increase in cash and cash equivalents............    20,226    36,089      3,724

Cash and cash equivalents, beginning of year.........    52,980    16,891     13,167
                                                       --------  --------   --------
Cash and cash equivalents, end of year...............  $ 73,206  $ 52,980   $ 16,891
                                                       ========  ========   ========
</TABLE>

Cash requirements and liquidity needs are primarily funded through operations
and our capacity for additional borrowing. We currently have a line of credit
agreement that provides for borrowings of up to $50,000. The availability of the
line of credit is subject to compliance with certain covenants set forth in the
agreement (See Note 5 of the Notes to Consolidated Financial Statements). At
December 31, 1999, the unused sources of liquidity consisted of cash and cash
equivalents of $73,206 and the unused portion of the line of credit of $50,000.

Cash flow generated from operations in 1999 and 1998 primarily resulted from an
increase in income, accrued compensation and various accrued liabilities. The
increase in accrued compensation and various accrued liabilities resulted from
increased business activity during 1999 and 1998. Accrued compensation is paid
annually in the first quarter of the following year. Cash flows from operations
in 1998 were boosted by the sales of loans by our Swiss-based subsidiary and the
receipt of a significant contractual buyout payment relating to a bank client
involved in an acquisition.

Cash flows provided by operations were also affected by receivables. Receivables
from regulated investment companies increased in 1999 and 1998 primarily due to
an increase in assets under management. These balances were received in the
following month. Additionally, an increase in 1999 trade receivables negatively
affected cash flows from operations, whereas increased trade receivables
collections in 1998 positively affected cash flows from operations.

Cash flows from investing activities are principally affected by capital
expenditures, including capitalized software development costs. Capital
expenditures in 1999 and 1998 included significant costs, including equipment
and furniture and fixtures associated with the construction of an additional
building within our corporate campus which was completed in early 1999. The
additional building was necessary due to increased headcount relating to
increased business activity. Additionally, we have approved plans to further
expand our corporate campus in 2000. This project should be completed in late
2001 at an estimated cost of $20,000. Capitalized software development costs in
1998 and 1997 included continued investments in the TRUST 3000 product line,
especially the open architecture project and a concentrated effort to address
Year 2000 compliance issues. Also, additional investments in SEI-sponsored
mutual funds were made during 1999 and 1998. These investments are classified as
Investments available for sale.

Cash flows from financing activities are primarily affected by debt and equity
transactions. On February 24, 1997, we issued $35,000 of medium-term notes in a
private offering with certain financial institutions. The proceeds were used to
repay the outstanding balance on our line of credit at that date, which amounted
to $30,000. Principal payments are made annually from the date of issuance while
interest payments are made semi-annually (See Note 6 of the Notes to
Consolidated Financial Statements). We continued our common stock repurchase
program. Approximately 688,000 shares of our common stock were acquired at a
cost of $65,970 during 1999 pursuant to an open market stock purchase
authorization of $353,365 made by the Board of Directors. As of February 29,
2000, we still had $10,813 remaining authorized for the purchase of our common
stock. Proceeds received from the issuance of common stock, including tax
benefit, increased in 1999 and 1998 primarily due to increased stock option
exercise activity and the substantial increase in our common stock share price
during the past two years. Cash dividends of $.40 per share were declared in
1999 and $.32 in 1998. The Board of Directors has indicated its intention to
continue making cash dividend payments.

Our operating cash flow, borrowing capacity, and liquidity should provide
adequate funds for continuing operations, continued investment in new products
and equipment, our common stock repurchase program, expansion of our corporate
campus, future dividend payments, and principal and interest payments on our
long-term debt.

                                                                              25
<PAGE>

Discontinued Operations
- -----------------------

In 1995, the Board of Directors approved a plan of disposal for the SEI Capital
Resources Division ("CR"). CR provided investment performance evaluation
services, consulting services, and brokerage services to employee benefit plan
sponsors and investment advisors in the United States.

A provision for the disposal of CR was established in 1996 that included certain
estimates relating to future commitments on certain operating leases utilized by
CR. These estimates were based upon certain assumptions relating to the
sub-leasing of these facilities. In 1998, these sub-lease arrangements were
finalized. As a result, the original discontinued operations provision was
overstated and accordingly was reduced by $1,154, net of tax expense of $444,
and is reflected in Income from disposal of discontinued operations on the
Consolidated Statements of Operations.

In 1997, the remaining net assets of CR were sold to a private investment firm.
The sale included the receipt of cash at closing and a note that was to be paid
in two installments. The total proceeds received equaled the value of CR's
remaining net assets and thus no gain or loss was recorded. Any additional gain
would be recorded when payment on the note was received. In 1999, the entire
amount of the note was in default. We accepted an offer of $2,100, net of tax
expense of $808, as satisfaction for the amount due on the outstanding balance
of the note. The entire amount was recognized as a gain and is reflected in
Income from disposal of discontinued operations on the Consolidated Statements
of Operations (See Note 2 of the Notes to Consolidated Financial Statements).


Assessment of the Transition into the Year 2000
- -----------------------------------------------

Background

We began work on the Year 2000 issue in 1995 with management recognition that
failure to acknowledge, analyze and remediate potential Year 2000 processing
issues could result in material consequences to our financial position and
operating results. Through early 1997, we focused our efforts on an assessment
of our TRUST 3000 product line and by mid-1997, we expanded our efforts to
include a review of all proprietary systems, vendors, internally used systems
and any other item that might have been affected by the Year 2000. A corporate
Year 2000 committee was formed consisting of representatives from every area of
our business and was managed by a full time senior project manager. The Year
2000 program encompassed all system hardware and software, physical facilities,
utilities, electronic equipment and communications, as well as all other
ancillary purchased products and services. Our Year 2000 program fully
subscribed to the Federal Financial Institutions Examination Council guidelines.

Contingency Plans

Contingency planning efforts were focused on the most critical business
functions and varied significantly based on a system's functionality and how it
operates. These plans incorporated an analysis of activities and processes that
occurred prior to, during and after the transition into the Year 2000. For many
business critical functions, we developed both a remediation contingency plan
and a business resumption contingency plan. The remediation contingency plan
dealt with how to react and quickly fix the disruption. The business resumption
contingency plan involved developing alternative ways to continue critical
operations in the event of a Year 2000 disruption. A rapid response team was
available during peak processing times to execute our Year 2000 contingency
plans. Throughout the post-event period, we continued to monitor most critical
business functions to ensure the smooth operation of all systems.

Costs to Address Year 2000 Issues

The cost of Year 2000 remediation and testing of the TRUST 3000 product line was
projected to be approximately $10 million. Through December 31, 1999,
approximately $7.7 million has been spent, of which approximately $4.5 million
has been capitalized pursuant to Statement of Financial Accounting Standards No.
86, "Accounting for the Costs of Computer Software to Be Sold, Leased, or
Otherwise Marketed" (See Note 1 of the Notes to Consolidated Financial
Statements). The spending dedicated to the TRUST 3000 product line represents
the material costs incurred to achieve Year 2000 compliance. All Year 2000
compliance costs for all other proprietary systems, including those used for
internal business purposes, were expensed as incurred or capitalized if new
software or hardware was purchased. These costs were immaterial.

                                                                              26
<PAGE>

Transition into the Year 2000

Throughout the event period, a variety of tests and activities were performed to
validate our critical applications, software, hardware, systems and
infrastructure were operating as expected. Specific post-event milestones were
identified and monitored closely, such as first month-end processing in Year
2000, leap-year processing, dividend postings, etc. There were no critical Year
2000 issues. All critical infrastructure systems and hardware were operational.
No critical data integrity issues were reported and no client access or service
problems were reported.  Our revenue and spending patterns were unaltered by
Year 2000 remediation efforts. No planned development projects were delayed or
cancelled as a result of Year 2000 compliance efforts.


Recent Pronouncements
- ---------------------

In December 1999, the Securities and Exchange Commission issued Staff Accounting
Bulletin No. 101, "Revenue Recognition in Financial Statements" ("SAB 101"). SAB
101 provides guidance on applying generally accepted accounting principles to
revenue recognition issues in financial statements. We are currently evaluating
the provisions established in SAB 101 to assess if application of SAB 101 is
required in our financial statements.


Forward-Looking Information
- ---------------------------

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor"
for forward-looking statements. Contained in this discussion are
"forward-looking statements," and include statements about future operations,
strategies, and financial results. Forward-looking statements are based upon
estimates and assumptions that involve risks and uncertainties, many of which
are beyond our control or are subject to change. Although we believe our
assumptions are reasonable, they could be inaccurate. Our actual future revenues
and income could differ materially from our expected results. We have no
obligation to publicly update or revise any forward-looking statements.

                                                                              27
<PAGE>

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk.
          ----------------------------------------------------------

We do have several offices located outside the United States that conduct
business in the local currencies of that country. We do not use foreign currency
exchange contracts or other types of derivative financial investments to hedge
local currency cash flows.  All foreign operations only account for
approximately 6 percent of total consolidated revenues.  Due to this limited
activity, we do not expect any material loss with respect to foreign currency
risk.

Exposure to market risk for changes in interest rates relate primarily to our
investment portfolio and long-term debt.  Currently, we do not invest in
derivative financial instruments.  We do not undertake any specific actions to
cover our exposure to interest rate risk and are not a party to any interest
rate risk management transactions.  We place our investments in financial
instruments that meet high credit quality standards. We are adverse to principal
loss and ensure the safety and preservation of our invested funds by limiting
default risk, market risk, and reinvestment risk. The interest rate on our long-
term debt is fixed and is not traded on any established market. We have no cash
flow exposure due to rate changes for our long-term debt.

                                                                              28

<PAGE>

Item 8.  Financial Statements and Supplementary Data.
         -------------------------------------------

Index to Financial Statements:

         Report of Independent Public Accountants
         Consolidated Balance Sheets -- December 31, 1999 and 1998
         Consolidated Statements of Operations -- For the years ended
             December 31, 1999, 1998, and 1997
         Consolidated Statements of Shareholders' Equity -- For the years ended
             December 31, 1999, 1998, and 1997
         Consolidated Statements of Cash Flows -- For the years ended December
             31, 1999, 1998, and 1997
         Notes to Consolidated Financial Statements
         Schedule II -- Valuation and Qualifying Accounts

All other schedules are omitted because they are not applicable, or not
required, or because the required information is included in the Consolidated
Financial Statements or notes thereto.

                                                                              29





<PAGE>

                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To SEI Investments Company:

We have audited the accompanying consolidated balance sheets of SEI Investments
Company (a Pennsylvania corporation) and subsidiaries as of December 31, 1999
and 1998, and the related consolidated statements of operations, shareholders'
equity and cash flows for each of the three years in the period ended December
31, 1999. These financial statements and schedule are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements and schedule 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 and schedule 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 financial position of SEI Investments Company and
subsidiaries as of December 31, 1999 and 1998, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1999 in conformity with generally accepted accounting principles.

Our audits were made for the purpose of forming an opinion on the basic
financial statements taken as a whole. The schedule listed in the Index to
Financial Statements is presented for purposes of complying with the Securities
and Exchange Commission's rules and is not part of the basic financial
statements. This schedule has been subjected to the auditing procedures applied
in the audits of the basic financial statements and, in our opinion, fairly
states in all material respects the financial data required to be set forth
therein in relation to the basic financial statements taken as a whole.


                                                       ARTHUR ANDERSEN LLP

Philadelphia, Pa.
 February 1, 2000

                                                                              30
<PAGE>

<TABLE>
<CAPTION>
            Consolidated Balance Sheets                                 SEI Investments Company
            (In thousands)                                                     and Subsidiaries

            December 31,                                                 1999           1998
            -----------------------------------------------------------------------------------
<S>         <C>                                                         <C>            <C>
Assets      Current Assets:
            Cash and cash equivalents...........................        $ 73,206       $ 52,980
            Receivables from regulated investment
               companies........................................          24,179         18,999
            Receivables, net of allowance for doubtful
               accounts of $1,700 and $1,200....................          33,554         27,919
            Deferred income taxes...............................          10,934          7,598
            Prepaid expenses and other current assets...........           5,119          6,013
                                                                        --------       --------

                Total Current Assets............................         146,992        113,509
                                                                        --------       --------

            Property and Equipment, net of accumulated
                depreciation and amortization of $71,415
                and $57,452.....................................          65,640         62,761
                                                                        --------       --------

            Capitalized Software, net of accumulated
                amortization of $9,838 and $8,238...............          15,626         17,068
                                                                        --------       --------

            Other Assets, net...................................          25,521         15,434
                                                                        --------       --------

                                                                        $253,779       $208,772

            -----------------------------------------------------------------------------------
</TABLE>

       The accompanying notes are an integral part of these statements.

                                                                              31
<PAGE>

<TABLE>
<CAPTION>
                      Consolidated Balance Sheets                                                   SEI Investments Company
                      (In thousands, except par value)                                                     and Subsidiaries

                      December 31,                                                            1999               1998
                      ------------------------------------------------------------------------------------------------------
                      <S>                                                                   <C>                <C>
Liabilities           Current Liabilities:
and
Shareholders'         Current portion of long-term debt...........................          $  2,000           $  2,000
Equity                Accounts payable............................................             7,397              6,805
                      Accrued compensation........................................            39,846             32,105
                      Accrued proprietary fund services...........................            11,562             10,370
                      Accrued consulting services.................................             7,342              6,934
                      Other accrued liabilities...................................            51,451             39,069
                      Deferred revenue............................................            19,320             13,511
                                                                                         -----------        -----------

                          Total Current Liabilities...............................           138,918            110,794
                                                                                         -----------        -----------

                      Long-term Debt..............................................            29,000             31,000
                                                                                         -----------        -----------

                      Deferred Income Taxes.......................................             6,859              7,293
                                                                                         -----------        -----------

                      Commitments and Contingencies

                      Shareholders' Equity:
                      Series Preferred stock, $.05 par value,
                         60 shares authorized; no shares issued
                         and outstanding..........................................                --                 --
                      Common stock, $.01 par value,
                         100,000 shares authorized; 17,692 and
                         17,861 shares issued and outstanding.....................               177                179
                      Capital in excess of par value..............................            71,501             57,541
                      Retained earnings...........................................             7,373              2,422
                      Accumulated other comprehensive losses......................               (49)              (457)
                                                                                         -----------        -----------

                          Total Shareholders' Equity..............................            79,002             59,685
                                                                                         -----------        -----------

                                                                                            $253,779           $208,772

                      -------------------------------------------------------------------------------------------------
</TABLE>
The accompanying notes are an integral part of these statements.


                                                                              32
<PAGE>

<TABLE>
<CAPTION>
Consolidated Statements of Operations                                                                  SEI Investments Company
(In thousands, except per share data)                                                                         And Subsidiaries

Year Ended December 31,                                                            1999              1998             1997
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                                                              <C>               <C>              <C>
Revenues................................................................         $456,192          $366,119         $292,749
Expenses:
    Operating and development...........................................          215,216           180,937          148,536
    Sales and marketing.................................................          126,184           103,834           84,770
    General and administrative..........................................           12,298            13,463           13,931
                                                                              -----------       -----------      -----------

Income from operations..................................................          102,494            67,885           45,512

Equity in the earnings of unconsolidated affiliate......................            6,765             3,015               --
Interest income.........................................................            2,285             1,558              983
Interest expense........................................................           (2,375)           (2,575)          (2,488)
                                                                              -----------       -----------      -----------

Income from continuing operations before income taxes...................          109,169            69,883           44,007

Income taxes............................................................           42,030            26,904           17,163
                                                                              -----------       -----------      -----------

Income from continuing operations.......................................           67,139            42,979           26,844

Income from disposal of discontinued operations,
   net of income tax expense of $808 and $444...........................            1,292               710               --
                                                                              -----------       -----------      -----------

Net income..............................................................          $68,431           $43,689          $26,844

- -------------------------------------------------------------------------------------------------------------------------------

Basic earnings per common share:
    Earnings per common share from continuing operations................            $3.78             $2.41            $1.47
    Earnings per common share from discontinued operations..............              .07               .04               --
                                                                              -----------       -----------      -----------

Basic earnings per common share.........................................            $3.85             $2.45            $1.47

- ----------------------------------------------------------------------------------------------------------------------------

Diluted earnings per common share:
    Earnings per common share from continuing operations................            $3.54             $2.25            $1.40
    Earnings per common share from discontinued operations..............              .07               .04               --
                                                                              -----------       -----------      -----------

Diluted earnings per common share.......................................            $3.61             $2.28            $1.40

- -------------------------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              33
<PAGE>

Consolidated Statements of Shareholders' Equity          SEI Investments Company
(In thousands)                                                  and Subsidiaries

<TABLE>
<CAPTION>
                                                                                            Accumulated Other
                                                                                           Comprehensive Income
                                                                                       -----------------------------
                                                                                        Cumulative     Unrealized
                                                                                          Foreign       Holding
                                                                 Capital                 Currency     Gain (Loss)       Total
                                              Common Stock    In Excess of   Retained   Translation        on       Shareholders'
                                           -------------------
                                            Shares    Amount    Par Value    Earnings   Adjustments   Investments       Equity
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>       <C>       <C>         <C>         <C>           <C>           <C>
Balance, December 31, 1996...............   18,498     $185     $ 54,959    $  1,141       $(177)        $  --          $ 56,108
Comprehensive income:
   Net income............................       --       --           --      26,844          --            --            26,844
   Foreign currency translation
     adjustments.........................       --       --           --          --        (240)           --              (240)
   Unrealized loss on investments........       --       --           --          --          --           (75)              (75)
                                                                                                                        --------
Total comprehensive income...............                                                                                 26,529
Purchase and retirement of common
     stock...............................   (1,403)     (14)     (20,666)    (22,940)         --            --           (43,620)
Issuance of common stock under the
     employee stock purchase plan........       47        1        1,053          --          --            --             1,054
Issuance of common stock upon
     exercise of stock options...........      625        6        8,009          --          --            --             8,015
Tax benefit on stock options exercised...       --       --        3,369          --          --            --             3,369
Cash dividends...........................       --       --           --      (5,045)         --            --            (5,045)
- -----------------------------------------------------------------------------------------------------------------------------------

Balance, December 31, 1997...............   17,767      178       46,724          --        (417)          (75)           46,410
Comprehensive income:
   Net income............................       --       --           --      43,689          --            --            43,689
   Foreign currency translation
     adjustments.........................       --       --           --          --           9            --                 9
   Unrealized gain on investments........       --       --           --          --          --            26                26
                                                                                                                        --------
Total comprehensive income...............                                                                                 43,724
Purchase and retirement of common
     stock...............................     (898)      (9)     (21,998)    (35,566)         --            --           (57,573)
Issuance of common stock under the
     employee stock purchase plan........       28       --        1,524          --          --            --             1,524
Issuance of common stock upon
     exercise of stock options...........      964       10       11,262          --          --            --            11,272
Tax benefit on stock options exercised...       --       --       20,029          --          --            --            20,029
Cash dividends...........................       --       --           --      (5,701)         --            --            (5,701)
- -----------------------------------------------------------------------------------------------------------------------------------

Balance, December 31, 1998...............   17,861     $179     $ 57,541    $  2,422       $(408)        $ (49)         $ 59,685

- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              34
<PAGE>

Consolidated Statements of Shareholders' Equity          SEI Investments Company
(In thousands)                                                  and Subsidiaries

<TABLE>
<CAPTION>
                                                                                            Accumulated Other
                                                                                           Comprehensive Income
                                                                                       -----------------------------
                                                                                        Cumulative     Unrealized
                                                                                          Foreign       Holding
                                                                 Capital                 Currency     Gain (Loss)       Total
                                              Common Stock    In Excess of   Retained   Translation        on       Shareholders'
                                           -------------------
                                            Shares    Amount    Par Value    Earnings   Adjustments   Investments       Equity
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>       <C>       <C>          <C>        <C>           <C>            <C>
Balance, December 31, 1998...............   17,861     $179      $57,541      $2,422       $(408)         $(49)          $59,685
Comprehensive income:
   Net income............................       --       --           --      68,431          --            --            68,431
   Foreign currency translation
     adjustments.........................       --       --           --          --         (61)           --               (61)
   Unrealized gain on investments........       --       --           --          --          --           469               469
                                                                                                                        --------
Total comprehensive income...............                                                                                 68,839
Purchase and retirement of common
     stock...............................     (689)      (7)      (9,753)    (56,403)         --            --           (66,163)
Issuance of common stock under the
     employee stock purchase plan........       25       --        2,066          --          --            --             2,066
Issuance of common stock upon
     exercise of stock options...........      495        5        6,591          --          --            --             6,596
Tax benefit on stock options exercised...       --       --       15,056          --          --            --            15,056
Cash dividends...........................       --       --           --      (7,077)         --            --            (7,077)
- -----------------------------------------------------------------------------------------------------------------------------------

Balance, December 31, 1999...............   17,692     $177      $71,501      $7,373       $(469)         $420           $79,002

- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              35
<PAGE>

<TABLE>
<CAPTION>
Consolidated Statements of Cash Flows                                                                     SEI Investments Company
(In thousands)                                                                                                   and Subsidiaries

Year Ended December 31,                                                                1999             1998              1997
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                  <C>              <C>                 <C>
Cash flows from operating activities:

Net income...................................................................         $68,431          $43,689             $26,844

Adjustments to reconcile net income to net cash provided by operating
    activities:

          Depreciation and amortization......................................          15,793           15,688              14,068
          Provision for losses on receivables................................             500               --                  --
          Equity in the earnings of unconsolidated affiliate.................          (6,765)          (3,015)                 --
          Write-off of capitalized software..................................           1,204            4,832                  --
          Write-off of customer lists........................................              --            2,662                  --
          Deferred income tax expense (benefit)..............................          (3,483)          (3,608)                893
          Discontinued operations............................................          (1,292)            (710)                 --
          Other..............................................................             194            3,450              (1,214)
          Change in current assets and liabilities:
              Decrease (increase) in:
                  Receivables from regulated investment companies............          (5,180)          (4,547)             (3,616)
                  Receivables................................................          (6,135)           2,121             (11,634)
                  Prepaid expenses and other current assets..................             894            9,110               1,745
              Increase (decrease) in:
                  Accounts payable...........................................             592            1,007                 (65)
                  Accrued compensation.......................................           7,741           11,208               6,417
                  Accrued proprietary fund services..........................           1,192              558               3,064
                  Accrued consulting services................................           1,000            3,674                (836)
                  Other accrued liabilities..................................          12,401            7,397               8,836
                  Deferred revenue...........................................           5,809            6,353               2,035
                                                                                     --------         --------            --------

              Total adjustments..............................................          24,465           56,180              19,693
                                                                                     --------         --------            ---------

           Net cash provided by operating activities.........................         $92,896          $99,869             $46,537

- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              36
<PAGE>

<TABLE>
<CAPTION>
Consolidated Statements of Cash Flows                                                                      SEI Investments Company
(In thousands)                                                                                                    and Subsidiaries

Year Ended December 31,                                                                1999             1998             1997
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>             <C>               <C>
Cash flows from investing activities:

     Additions to property and equipment.....................................          (17,254)        (21,774)          (12,955)
     Additions to capitalized software.......................................           (1,362)         (6,719)           (8,096)
     Purchase of investments available for sale..............................           (2,494)         (2,626)               --
     Other...................................................................             (719)           (583)             (803)
                                                                                    ----------      ----------        ----------

          Net cash used in investing activities..............................          (21,829)        (31,702)          (21,854)

Cash flows from financing activities:

     Proceeds from (payment on) long-term debt...............................           (2,000)         (2,000)           35,000
     Payment on line of credit...............................................               --              --           (20,000)
     Purchase and retirement of common stock.................................          (65,970)        (55,156)          (43,620)
     Proceeds from issuance of common stock..................................            8,470          10,379             9,069
     Tax benefit on stock options exercised..................................           15,056          20,029             3,369
     Payment of dividends....................................................           (6,397)         (5,330)           (4,777)
                                                                                    ----------      ----------        ----------

          Net cash used in financing activities..............................          (50,841)        (32,078)          (20,959)
                                                                                    ----------      ----------        ----------

Net increase in cash and cash equivalents....................................           20,226          36,089             3,724

Cash and cash equivalents, beginning of year.................................           52,980          16,891            13,167
                                                                                    ----------      ----------        ----------

Cash and cash equivalents, end of year.......................................          $73,206         $52,980           $16,891

- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              37
<PAGE>

Notes to Consolidated Financial Statements               SEI Investments Company
                                                                and Subsidiaries

Note 1 -  Summary of Significant Accounting Policies:

          Nature of Operations - SEI Investments Company (the "Company") is
          organized around its four primary business lines: Technology Services,
          Asset Management, Mutual Fund Services, and Investments in New
          Business. Technology Services, which accounted for 41 percent of
          consolidated revenues in 1999, includes the Trust 3000 product line
          and trust operations outsourcing. Asset Management, which accounted
          for 30 percent of consolidated revenues in 1999, provides investment
          solutions through various investment products and services distributed
          directly or through professional investment advisors, financial
          planners, and other financial intermediaries to institutional and
          high-net-worth markets. Mutual Fund Services, which accounted for 24
          percent of consolidated revenues in 1999, provides administration and
          distribution services to proprietary mutual funds created for banks,
          insurance firms, and investment management companies. Investments in
          New Business, which accounted for 5 percent of consolidated revenues
          in 1999, consists of the Company's Canadian and international
          operations which provide investment advisory services globally through
          investment products and services and performance evaluation and
          consulting services to Canadian pension plans.

          Principles of Consolidation - The Consolidated Financial Statements
          include the accounts of the Company and its wholly owned subsidiaries.
          The Company's principal subsidiaries are SEI Investments Distribution
          Company ("SIDCO"), SEI Investments Management Corporation ("SIMC"),
          and SEI Trust Company. All intercompany accounts and transactions have
          been eliminated. Investment in unconsolidated affiliate is accounted
          for using the equity method due to the Company's less than 50 percent
          ownership. The Company's portion of the affiliate's operating results
          is reflected in Equity in the earnings of unconsolidated affiliate on
          the accompanying Consolidated Statements of Operations (See Note 4).

          Cash and Cash Equivalents - At December 31, 1999 and 1998, Cash and
          cash equivalents included $72,874,000 and $50,283,000, respectively,
          primarily invested in SEI Tax Exempt Trust, one of several mutual
          funds sponsored by SIMC. Interest and dividend income for 1999, 1998,
          and 1997 was $2,285,000, $1,558,000, and $983,000, respectively (See
          Note 12).

          Property and Equipment - Property and Equipment on the accompanying
          Consolidated Balance Sheets consist of the following:

<TABLE>
<CAPTION>
                                                                                                                 Estimated
                                                                                                               Useful Lives
                                                                   1999                    1998                 (In Years)
          -----------------------------------------------------------------------------------------------------------------
          <S>                                                     <C>                   <C>                    <C>
          Equipment.....................................          $62,437,000           $53,739,000                  3 to 5
          Buildings.....................................           34,676,000            28,303,000                25 to 39
          Land..........................................            7,686,000             6,993,000                     N/A
          Purchased software............................           13,302,000            10,270,000                       3
          Furniture and fixtures........................           12,554,000            10,284,000                  3 to 5
          Leasehold improvements........................            6,400,000             6,791,000              Lease Term
          Construction in progress......................                   --             3,833,000                     N/A
                                                                  -----------           ------------

                                                                  137,055,000           120,213,000
          Less:  Accumulated depreciation
             and amortization...........................          (71,415,000)          (57,452,000)
                                                                   ----------            ----------

          Property and Equipment, net...................          $65,640,000           $62,761,000

          -----------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              38
<PAGE>

          Property and Equipment are stated at cost. Depreciation and
          amortization are computed using the straight-line method over the
          estimated useful life of each asset. Expenditures for renewals and
          betterments are capitalized, while maintenance and repairs are charged
          to expense when incurred.

          Capitalized Software - The Company accounts for software development
          costs in accordance with Statement of Financial Accounting Standards
          No. 86, "Accounting for the Costs of Computer Software to Be Sold,
          Leased, or Otherwise Marketed" ("SFAS 86"). Under SFAS 86, costs
          incurred to create a computer software product are charged to research
          and development expense as incurred until technological feasibility
          has been established. The Company establishes technological
          feasibility upon completion of a detailed program design. At that
          point, computer software costs are capitalized until the product is
          available for general release to customers. The establishment of
          technological feasibility and the ongoing assessment of recoverability
          of capitalized software development costs require considerable
          judgment by management with respect to certain external factors,
          including, but not limited to, anticipated future revenues, estimated
          economic life, and changes in technology.

          Amortization begins when the product is released. Capitalized software
          development costs are amortized on a product-by-product basis using
          the straight-line method over the estimated economic life of the
          product or enhancement, which is primarily three to ten years, with a
          weighted average remaining life of 8.1 years.

          Capitalized software development costs consist primarily of salary,
          consulting, and computer costs incurred to develop new products and
          enhancements to existing products. During 1999, 1998, and 1997,
          software development costs of $1,362,000, $6,719,000, and $8,096,000
          were capitalized, respectively. Amortization expense was $1,600,000,
          $3,259,000, and $3,233,000 in 1999, 1998, and 1997, respectively, and
          is included in Operating and development expense on the accompanying
          Consolidated Statements of Operations.

          Total research and development costs, including capitalized software,
          were $42,788,000, $24,866,000, and $22,500,000 in 1999, 1998, and
          1997, respectively.

          Management continually evaluates the recoverability of existing
          software products, as well as strategies for new software products.
          The assessment as to the recoverability of existing software products
          included an evaluation of expected future revenues and cash flows,
          acceptability of the product in the market, the ability to support the
          product in a cost-effective manner, and technological enhancements. In
          the fourth quarter of 1999 and 1998, management determined that
          certain software products were considered either obsolete or incapable
          of producing the future cash flows that were originally anticipated.
          As a result, the Company wrote-off net capitalized software
          development costs of $1,204,0000 and $4,832,000 in 1999 and 1998,
          respectively.

          Statements of Cash Flows - For purposes of the Consolidated Statements
          of Cash Flows, the Company considers investment instruments purchased
          with an original maturity of three months or less to be cash
          equivalents.

          Supplemental disclosures of cash paid/received during the year is as
          follows:

<TABLE>
<CAPTION>
                                                                            1999            1998             1997
                                                                            ----            ----             ----
                   <S>                                               <C>                <C>               <C>
                   Interest paid.................................    $  2,364,000       $  2,598,000      $ 1,499,000
                   Interest and dividends received...............    $  2,552,000       $  1,467,000      $   957,000
                   Income taxes paid (Federal and state).........    $ 23,175,000       $ 12,514,000      $ 8,667,000
</TABLE>

          Revenue Recognition - Principal sources of revenues are information
          processing and software services, management, administration, and
          distribution of mutual funds, brokerage and consulting services, and
          other asset management products and services. Revenues from these
          services are recognized in the periods in which the services are
          performed. Cash received by the Company in advance of the performance
          of services is deferred and recognized as revenue when earned.

                                                                              39
<PAGE>

          Income Taxes - The Company accounts for income taxes in accordance
          with Statement of Financial Accounting Standards No. 109, "Accounting
          for Income Taxes" ("SFAS 109"). Under SFAS 109, the liability method
          is used for income taxes. Under this method, deferred tax assets and
          liabilities are determined based on differences between the financial
          reporting and tax basis of assets and liabilities and are measured
          using enacted tax rates and laws that are expected to be in effect
          when the differences reverse (See Note 10).

          Foreign Currency Translation - The assets and liabilities of foreign
          operations are translated into U.S. dollars using the rates of
          exchange at year end. The results of operations are translated into
          U.S. dollars at the average daily exchange rates for the period. All
          foreign currency transaction gains and losses are included in income
          in the periods in which they occur, and are immaterial for each of the
          three years in the period ended December 31, 1999.

          Earnings Per Share - The Company calculates earnings per share in
          accordance with Statement of Financial Accounting Standards No. 128,
          "Earnings per Share" ("SFAS 128"). Pursuant to SFAS 128, dual
          presentation of basic and diluted earnings per common share is
          required on the face of the statements of operations for companies
          with complex capital structures. Basic earnings per common share is
          calculated by dividing net income available to common shareholders by
          the weighted average number of common shares outstanding for the
          period. Diluted earnings per common share reflects the potential
          dilution from the exercise or conversion of securities into common
          stock, such as stock options.

<TABLE>
<CAPTION>
          ------------------------------------------------------------------------------------------------------------------
                                                                            For the year ended December 31, 1999
                                                                  ----------------------------------------------------------
                                                                       Income                 Shares            Per Share
                                                                     (Numerator)          (Denominator)           Amount
                                                                     ----------           ------------            ------
          <S>                                                     <C>                     <C>                   <C>
          Basic earnings per common share
               from continuing operations................            $67,139,000              17,772,000            $3.78

          Dilutive effect of stock options...............                     --               1,199,000
                                                                     -----------            ------------
          Diluted earnings per common share
               from continuing operations................            $67,139,000              18,971,000            $3.54
</TABLE>

<TABLE>
<CAPTION>
                                                                            For the year ended December 31, 1998
                                                                  ----------------------------------------------------------
                                                                       Income                 Shares            Per Share
                                                                     (Numerator)          (Denominator)           Amount
                                                                      ---------            -----------            ------
          <S>                                                     <C>                     <C>                   <C>
          Basic earnings per common share
               from continuing operations................            $42,979,000              17,827,000          $2.41

          Dilutive effect of stock options...............                     --               1,299,000
                                                                     -----------            ------------
          Diluted earnings per common share
               from continuing operations................            $42,979,000              19,126,000          $2.25
</TABLE>

<TABLE>
<CAPTION>
                                                                            For the year ended December 31, 1997
                                                                  ----------------------------------------------------------
                                                                       Income                 Shares            Per Share
                                                                     (Numerator)          (Denominator)           Amount
                                                                      ---------            -----------            ------
          <S>                                                     <C>                     <C>                   <C>
          Basic earnings per common share
               from continuing operations................            $26,844,000              18,315,000          $1.47

          Dilutive effect of stock options...............                     --                 921,000
                                                                     -----------            ------------
          Diluted earnings per common share
               from continuing operations................            $26,844,000              19,236,000          $1.40
</TABLE>

- --------------------------------------------------------------------------------

          Options to purchase 370,000, 422,000, and 580,000 shares of common
          stock, with an average exercise price per share of $118.50, $89.43,
          and $42.00, were outstanding during 1999, 1998, and 1997,
          respectively, but were excluded from the diluted earnings per common
          share calculation because the option's exercise price was greater than
          the average market price of the Company's common stock.

                                                                              40
<PAGE>

          Comprehensive Income - In 1998, the Company adopted Statement of
          Financial Accounting Standards No. 130, "Reporting Comprehensive
          Income" ("SFAS 130"). SFAS 130 establishes standards for reporting and
          presentation of comprehensive income and its components (revenues,
          expenses, gains and losses) in a full set of general-purpose financial
          statements that is presented with equal prominence as other financial
          statements. Comprehensive income consists of net income, foreign
          currency translation adjustments, and unrealized holding gains and
          losses. The adoption of SFAS 130 had no impact on total shareholders'
          equity and is presented on the accompanying Consolidated Statements of
          Shareholders' Equity.

          ---------------------------------------------------------------------
<TABLE>
<CAPTION>                                                                                        Tax
                                                                               Pre-Tax         (Expense)       Net of Tax
                                                                               Amount         or Benefit         Amount
                                                                               ------         ----------         ------
          For the Year Ended December 31, 1997:
          ------------------------------------
          <S>                                                                  <C>            <C>             <C>
          Unrealized holding loss arising during period...............            $(123)          $  48          $  (75)
          Foreign currency translation adjustments....................             (393)            153            (240)
                                                                                   ----             ---            ----

          Total other comprehensive loss..............................            $(516)           $201           $(315)

          For the Year Ended December 31, 1998:
          -------------------------------------

          Unrealized holding gains arising during period..............               $42           $(16)            $26
          Foreign currency translation adjustments....................                15             (6)              9
                                                                                      --           ----             ---

          Total other comprehensive income............................               $57           $(22)            $35

          For the Year Ended December 31, 1999:
          ------------------------------------

          Unrealized holding gains arising during period..............              $763          $(294)           $469
          Foreign currency translation adjustments....................               (99)            38             (61)
                                                                                    -----          ----            ----

          Total other comprehensive income............................              $664          $(256)           $408
</TABLE>
          --------------------------------------------------------------------

          Management's Use of Estimates - The preparation of financial
          statements in conformity with generally accepted accounting principles
          requires management to make estimates and assumptions that affect the
          reported amounts of assets and liabilities and disclosure of
          contingent assets and liabilities at the date of the financial
          statements and the reported amounts of revenues and expenses during
          the reporting period. Actual results could differ from those
          estimates.

          Recent Pronouncements - In December 1999, the Securities and Exchange
          Commission issued Staff Accounting Bulletin No. 101, "Revenue
          Recognition in Financial Statements" ("SAB 101"). SAB 101 provides
          guidance on applying generally accepted accounting principles to
          revenue recognition issues in financial statements. The Company is
          currently evaluating the provisions established in SAB 101 to assess
          if application of SAB 101 is required in its financial statements.

                                                                              41
<PAGE>

Note 2 - Discontinued Operations:

          In 1995, the Company's Board of Directors approved a plan of disposal
          for the SEI Capital Resources Division ("CR"). CR provided investment
          performance evaluation services, consulting services, and brokerage
          services to employee benefit plan sponsors and investment advisors in
          the United States. The results of CR have been reported separately as
          discontinued operations in the accompanying Consolidated Financial
          Statements.

          In 1996, the Company established a provision to cover all future costs
          associated with the disposal of CR. This provision included certain
          estimates relating to future commitments on certain operating leases
          utilized by CR. These estimates were based upon certain assumptions
          relating to the sub-leasing of these facilities. In 1998, these sub-
          lease arrangements were finalized. As a result, the original
          discontinued operations provision was overstated. Accordingly in 1998,
          the Company reduced the discontinued operations provision by
          $1,154,000, net of tax expense of $444,000, which is reflected in
          Income from disposal of discontinued operations on the Consolidated
          Statements of Operations.

          In 1997, the Company entered into a definitive agreement to sell the
          remaining net assets of CR to a private investment firm. Based upon
          the terms of the agreement, the Company received a specified amount of
          cash at closing along with a note that was to be paid in two
          installments. The total proceeds received equaled the value of CR's
          remaining net assets and thus no gain or loss was recorded in 1997 as
          a result of this transaction. Any additional gain would be recorded
          when payment on the note was received. In 1999, the outstanding
          balance on the note that was due the Company was in default. The
          Company accepted an offer of $2,100,000 as satisfaction for the entire
          outstanding balance on the note. The Company recognized the entire
          $2,100,000, net of tax expense of $808,000, as a gain which is
          reflected in Income from disposal of discontinued operations on the
          Consolidated Statements of Operations.

Note 3 - Receivables:

          Receivables on the accompanying Consolidated Balance Sheets consist of
the following:

<TABLE>
<CAPTION>
                                                                                    1999                         1998
          -----------------------------------------------------------------------------------------------------------------
          <S>                                                                    <C>                          <C>
          Trade receivables........................................              $16,339,000                  $14,586,000
          Fees earned, not received................................                2,304,000                    2,558,000
          Fees earned, not billed..................................               16,611,000                   11,975,000
                                                                                  ----------                   ----------

                                                                                  35,254,000                   29,119,000

          Less:  Allowance for doubtful accounts...................               (1,700,000)                  (1,200,000)
                                                                                 -----------                  -----------

                                                                                 $33,554,000                  $27,919,000
</TABLE>
          --------------------------------------------------------------------

          Fees earned, not received represent brokerage commissions earned but
          not yet collected. Fees earned, not billed represent receivables
          earned but unbilled and result from timing differences between
          services provided and contractual billing schedules.

          Receivables from regulated investment companies on the accompanying
          Consolidated Balance Sheets represent fees collected from the
          Company's wholly owned subsidiaries, SIDCO and SIMC, for distribution,
          investment advisory, and administration services provided by these
          subsidiaries to various regulated investment companies sponsored by
          the Company (See Note 12).

                                                                              42
<PAGE>

Note 4 - Other Assets:

          Other assets on the accompanying Consolidated Balance Sheets consist
of the following:

<TABLE>
<CAPTION>
                                                                                          1999                1998
          ---------------------------------------------------------------------------------------------------------------
          <S>                                                                          <C>                <C>
          Investments available for sale.......................................        $  6,704,000       $   3,565,000
          Investment in unconsolidated affiliate...............................           5,305,000           2,573,000
          Other, net...........................................................          13,512,000           9,296,000
                                                                                         ----------         -----------

          Other assets.........................................................        $ 25,521,000       $  15,434,000

          ---------------------------------------------------------------------------------------------------------------
</TABLE>

          Investments Available for Sale - Investments available for sale
          consist of investments in mutual funds sponsored by the Company. The
          Company accounts for investments in marketable securities pursuant to
          Statement of Financial Accounting Standards No. 115, "Accounting for
          Certain Investments in Debt and Equity Securities" ("SFAS 115"). SFAS
          115 requires that debt and equity securities classified as available
          for sale be reported at market value. Unrealized holding gains and
          losses, net of income taxes, are reported as a separate component of
          Comprehensive income. Realized gains and losses, as determined on a
          specific identification basis, are reported separately on the
          accompanying Consolidated Statements of Operations.

          Investments available for sale at December 31, 1999 had an aggregate
          cost of $6,235,000 and an aggregate market value of $6,704,000, with
          gross unrealized holding gains of $469,000. The net unrealized holding
          gains at December 31, 1999 were $420,000 (net of income tax expense of
          $49,000). Investments available for sale at December 31, 1998 had an
          aggregate cost of $3,645,000 and an aggregate market value of
          $3,565,000, with gross unrealized holding losses of $80,000. The net
          unrealized holding losses at December 31, 1998 were $49,000 (net of
          income tax benefit of $31,000). The net unrealized holding gains and
          losses at December 31, 1999 and 1998 were reported as a separate
          component of Accumulated other comprehensive losses on the
          accompanying Consolidated Balance Sheets.

          Investment in Unconsolidated Affiliate - The Company and three leading
          academics in the field of finance formed a general partnership, LSV
          Asset Management ("LSV"). LSV is a registered investment advisor which
          provides investment advisory services to institutions, including
          pension plans and investment companies. LSV is currently the portfolio
          manager for a number of Company-sponsored mutual funds. The Company's
          interest in LSV for 1999 and 1998 was approximately 47 and 45 percent,
          respectively. LSV is accounted for using the equity method of
          accounting. The Company's portion of LSV's net earnings is reflected
          in Equity in the earnings of unconsolidated affiliate on the
          accompanying Consolidated Statements of Operations.

          The following table contains condensed financial information of LSV:

<TABLE>
<CAPTION>
          Condensed Statement of Operations                                            1999               1998
          --------------------------------------------------------------------------------------------------------------
          <S>                                                                        <C>               <C>
          Revenues.......................................................            $20,108,000       $10,810,000

          Net income.....................................................            $14,388,000       $ 6,637,000

          --------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              43
<PAGE>

<TABLE>
<CAPTION>
          Condensed Balance Sheet                                                      1999               1998
          --------------------------------------------------------------------------------------------------------------
          <S>                                                                         <C>               <C>
          Current assets.................................................             $9,459,000        $6,284,000
          Non-current assets.............................................                131,000           100,000
                                                                                      ----------        ----------

          Total assets...................................................             $9,590,000        $6,384,000

          Current liabilities............................................             $  782,000        $1,096,000
          Partners' capital..............................................              8,808,000         5,288,000
                                                                                       ---------         ---------
          Total liabilities and
             partners' capital...........................................             $9,590,000        $6,384,000

          --------------------------------------------------------------------------------------------------------------
</TABLE>

Note 5 - Line of Credit:

          The Company has a line of credit agreement (the "Agreement") with its
          principal lending institution which provides for borrowings of up to
          $50,000,000. The Agreement ends on August 31, 2000, at which time the
          outstanding principal balance, if any, becomes due unless the
          Agreement is extended. The line of credit, when utilized, accrues
          interest at the Prime rate or one and one-quarter percent above the
          London Interbank Offered Rate. The Company is obligated to pay a
          commitment fee equal to one-quarter of one percent per annum on the
          average daily unused portion of the commitment. Certain covenants
          under the Agreement require the Company to maintain specified levels
          of net worth and place certain restrictions on investments.

          There were no borrowings on the Company's line of credit during 1999.
          The maximum month-end amount of debt outstanding on the Company's line
          of credit for the year ended December 31, 1998 was $15,000,000.
          Interest expense, including commitment fees, on the Company's line of
          credit was $79,000, $127,000, and $302,000 for the years ended
          December 31, 1999, 1998, and 1997, respectively. The weighted average
          interest rate was 5.9 percent and 5.8 percent for the years ended
          December 31, 1998 and 1997, respectively.


Note 6 - Long-term Debt:

          On February 24, 1997, the Company signed a Note Purchase Agreement
          authorizing the issuance and sale of $20,000,000 of 7.20% Senior Notes
          and $15,000,000 of 7.27% Senior Notes (collectively, the "Notes") in a
          private offering with certain financial institutions. The Notes are
          unsecured with final maturities ranging from 10 to 15 years. The
          proceeds from the Notes were used to repay the outstanding balance on
          the Company's line of credit at that time. The Note Purchase
          Agreement, as amended, contains various covenants, including
          limitations on indebtedness, maintenance of minimum net worth levels,
          and restrictions on certain investments. In addition, the agreement
          limits the Company's ability to merge or consolidate, and to sell
          certain assets. Principal payments on the Notes are made annually from
          the date of issuance while interest payments are made semi-annually.
          The Company paid the next principal payment for $2,000,000 in February
          2000. The carrying amount of the Company's long-term debt approximates
          its fair value.


                                                                              44
<PAGE>

          Aggregate maturities of long-term debt at December 31, 1999 are:

          ------------------------------------------------------------------

          2000..............................................   $ 2,000,000
          2001..............................................     2,000,000
          2002..............................................     2,000,000
          2003..............................................     4,000,000
          2004..............................................     4,000,000
          2005 and thereafter...............................    17,000,000
                                                                ----------

                                                               $31,000,000

          -------------------------------------------------------------------

          Interest expense relating to the Company's long-term debt was
          $2,296,000 and $2,448,000 for the years ended December 31, 1999 and
          1998, respectively.


Note 7 - Shareholders' Equity:

          Stock-Based Compensation Plans - The Company has several stock option
          plans under which non-qualified and incentive stock options for common
          stock are available for grant to officers, directors, and key
          employees. The options granted and the option prices are established
          by the Board of Directors in accordance with the terms of the plans.
          The Board of Directors has reserved an aggregate 14,605,000 shares for
          grant under these plans. All options outstanding were granted at
          prices equal to the fair market value of the stock on the date of
          grant and expire 10 years after the date of grant. All options granted
          prior to December 1997 vest ratably over a four year period from the
          date of grant. All options granted in December 1997 and after vest
          ratably upon the Company's attainment of specific earnings levels or
          entirely after seven years from the date of grant.

          The Company accounts for its stock option plans in accordance with APB
          Opinion No. 25, "Accounting for Stock Issued to Employees".
          Accordingly, no compensation expense has been recognized. In 1995, the
          Financial Accounting Standards Board issued Statement of Financial
          Accounting Standards No. 123, "Accounting for Stock-Based
          Compensation" ("SFAS 123"). SFAS 123 establishes a fair value based
          method of accounting for stock-based compensation plans. SFAS 123
          requires that an employer's financial statements include certain
          disclosures about stock-based employee compensation arrangements
          regardless of the method used to account for the plan. Had the Company
          recognized compensation cost for its stock option plans consistent
          with the provisions of SFAS 123, the Company's net income and earnings
          per common share would have been reduced to the following pro forma
          amounts:

<TABLE>
<CAPTION>
                                                                              1999               1998               1997
          -------------------------------------------------------------------------------------------------------------------
          <S>                                                                <C>                <C>                <C>
          Net income:
               As reported.........................................          $68,431            $43,689            $26,844
               Pro forma...........................................          $55,859            $37,721            $25,334

          Basic earnings per common share:
               As reported.........................................            $3.85              $2.45              $1.47
               Pro forma...........................................            $3.14              $2.12              $1.38

          Diluted earnings per common share:
               As reported.........................................            $3.61              $2.28              $1.40
               Pro forma...........................................            $2.94              $1.97              $1.32

          -------------------------------------------------------------------------------------------------------------------
</TABLE>

          Because the SFAS 123 method of accounting has not been applied to
          options granted prior to January 1, 1995, the resulting pro forma
          compensation cost may not be representative of that to be expected in
          future years.

                                                                              45
<PAGE>

The weighted average fair value of the stock options granted during 1999, 1998,
and 1997 was $174.34, $121.86, and $59.71, respectively. The fair value of each
option grant is estimated on the date of grant using the Black-Scholes option
pricing model with the following weighted average assumptions:

<TABLE>
<CAPTION>
                                                                    1999              1998               1997
- --------------------------------------------------------------------------------------------------------------------
<S>                                                               <C>                <C>               <C>
Risk-free interest rate..................................          5.81%              5.34%             6.55%
Expected dividend yield..................................          0.30%              1.00%             1.00%
Expected life............................................         7 Years            7 Years           7 Years
Expected volatility......................................         40.24%             40.19%            37.36%

- --------------------------------------------------------------------------------------------------------------------
</TABLE>

Certain information relating to the Company's stock option plans for 1999, 1998,
and 1997 is summarized as follows:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------
                                                                                                  Weighted
                                                                             Number of            Average
                                                                              Shares           Exercise Price
                                                                              ------           --------------
<S>                                                                          <C>               <C>
Balance as of December 31, 1996.................................             3,856,000               14.85
Granted.........................................................               622,000               40.55
Exercised.......................................................              (625,000)              12.83
Expired or canceled.............................................               (58,000)              22.25
                                                                           -----------

Balance as of December 31, 1997.................................             3,795,000               19.27
Granted.........................................................               508,000               84.07
Exercised.......................................................              (964,000)              11.70
Expired or canceled.............................................               (95,000)              32.49
                                                                           -----------

Balance as of December 31, 1998.................................             3,244,000               31.25
Granted.........................................................               432,000              114.91
Exercised.......................................................              (495,000)              13.31
Expired or canceled.............................................               (31,000)              40.79
                                                                           -----------

Balance as of December 31, 1999.................................             3,150,000              $45.42

Exercisable as of December 31, 1999.............................             1,910,000              $21.61

Available for future grant as of December 31, 1999..............             1,028,000                  --

- ----------------------------------------------------------------------------------------------------------------
</TABLE>

As of December 31, 1998 and 1997, there were 1,976,000 and 2,725,000 shares
exercisable, respectively. The expiration dates for options at December 31, 1999
range from March 8, 2000 to December 20, 2009, with a weighted average remaining
contractual life of 6.2 years.

                                                                              46
<PAGE>

The following table summarizes information relating to all options outstanding
at December 31, 1999:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------------
                                Options Outstanding                      Options Exercisable
                               at December 31, 1999                     at December 31, 1999
                         -------------------------------------     -----------------------------------
                                                                                                           Weighted
                                                  Weighted                               Weighted          Average
        Range of                                  Average                                 Average         Remaining
        Exercise              Number              Exercise            Number             Exercise         Contractual
         Prices                 of                 Price                of                 Price             Life
      (Per Share)             Shares            (Per Share)           Shares            (Per Share)        (Years)
      -----------             ------            -----------           ------            -----------        -------
<S>                           <C>               <C>                   <C>               <C>                <C>
$   8.00 - $13.00             456,000            $ 10.42                456,000          $ 10.42             1.5
   13.75 -  18.50             559,000              16.93                559,000            16.93             4.0
   19.50 -  26.25             691,000              22.68                594,000            22.92             5.8
   42.00 -  57.00             585,000              43.79                291,000            43.80             8.1
   68.75 -  89.75             427,000              88.82                 10,000            69.80             9.0
   90.75 - 118.50             432,000             114.91                     --               --             9.9
                           ----------                             -------------
                            3,150,000                                 1,910,000

- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

Employee Stock Purchase Plan - The Company has an employee stock purchase plan
that provides for offerings of common stock to eligible employees at a price
equal to 85 percent of the fair market value of the stock at the end of the
stock purchase period, as defined. The Company has reserved 1,300,000 shares for
issuance under this plan. At December 31, 1999, 786,000 cumulative shares have
been issued.

Common Stock Buyback - The Board of Directors has authorized the purchase of the
Company's common stock on the open market or through private transactions of up
to an aggregate of $353,365,000. Through December 31, 1999, a total of
16,191,000 shares at an aggregate cost of $330,248,000 have been purchased and
retired. The Company purchased 688,000 shares at a cost of $65,970,000 during
1999.

The Company immediately retires its common stock when purchased. Upon
retirement, the Company reduces Capital in excess of par value for the average
capital per share outstanding and the remainder is charged against Retained
earnings. If the Company reduces its Retained earnings to zero, any subsequent
purchases of common stock will be charged entirely to Capital in excess of par
value.

Shareholders' Rights Plan - On December 10, 1998, the Company's Board of
Directors adopted a new Shareholder Rights Plan to replace the Shareholder
Rights Plan originally adopted in 1988 which expired on December 19, 1998. The
Company's Shareholder Rights Plan is designed to deter coercive or unfair
takeover tactics and to prevent a person or group from acquiring control of the
Company without offering a fair price to all shareholders.

Under the terms of the 1998 Shareholder Rights Plan, all common shareholders of
record at the close of business on December 19, 1999 shall receive one Right for
each outstanding common share of the Company. Any new common shares issued after
December 19, 1999 will receive one Right for each common share. Each Right
entitles the registered holder to purchase from the Company one two-thousandths
of a share of Series A Junior Participating Preferred Shares, par value $.05 per
share, at an exercise price of $500 per share. The Rights will become
exercisable and trade separately from the Common Stock 10 days following a
public announcement that a person or group is the beneficial owner of 20 percent
or more of the outstanding Common Shares (the "Stock Acquisition Date"), or the
commencement of a tender or exchange offer that would result in such a person or
group owning 20 percent or more of the outstanding Common Shares.


                                                                              47
<PAGE>

          In the event that the Company is involved in a merger or other
          business combination in which the Company survives and its common
          stock remains outstanding, the other stockholders will be able to
          exercise the Rights and buy common stock of the Company having twice
          the value of the exercise price of the Rights. Additionally, if the
          Company is involved in certain other mergers where its shares are
          exchanged or certain major sales of its assets occur, stockholders
          will be able to purchase the other party's common shares in an amount
          equal to twice the value of the exercise price of the Rights. Upon the
          occurrence of any of these events, the Rights will no longer be
          exercisable into Preferred Shares.

          The Rights, which do not have voting rights, will expire on December
          19, 2008, and may be redeemed by the Company any time until ten days
          following the Stock Acquisition Date at a price of $.01 per Right.

          Dividends - On May 18, 1999, the Board of Directors declared a cash
          dividend of $.20 per share on the Company's common stock, which was
          paid on June 30, 1999, to shareholders of record on June 16, 1999. On
          December 14, 1999, the Board of Directors declared a cash dividend of
          $.20 per share on the Company's common stock, which was paid on
          January 28, 2000, to shareholders of record on January 7, 2000.

          The dividends declared in 1999 and 1998 were $7,077,000 and
          $5,701,000, respectively. The Board of Directors has indicated its
          intention to pay future dividends on a semiannual basis.


Note 8 -  Employee Benefit Plan:

          The Company has a tax-qualified defined contribution plan (the
          "Plan"). The Plan provides retirement benefits, including provisions
          for early retirement and disability benefits, as well as a tax-
          deferred savings feature. After satisfying certain requirements,
          participants are vested in employer contributions at the time the
          contributions are made. All Company contributions are discretionary
          and are made from available profits. The Company contributed
          $1,774,000, $1,471,000, and $1,412,000 to the Plan in 1999, 1998, and
          1997, respectively.


Note 9 -  Commitments and Contingencies:

          The Company has entered into various operating leases for facilities,
          data processing equipment, and software. Some of these leases contain
          escalation clauses for increased taxes and operating expenses. Rent
          expense was $11,166,000, $14,142,000, and $16,192,000 in 1999, 1998,
          and 1997, respectively.

          Aggregate noncancellable minimum lease commitments at December 31,
          1999 are:

          ----------------------------------------------------------------------

          2000..............................................         $ 7,275,000
          2001..............................................           6,090,000
          2002..............................................           2,689,000
          2003..............................................           2,122,000
          2004..............................................             877,000
          2005 and thereafter...............................             722,000
                                                                    ------------

                                                                     $19,775,000

          ----------------------------------------------------------------------

In the normal course of business, the Company is party to various claims and
legal proceedings. Although the ultimate outcome of these matters is presently
not determinable, management, after consultation with legal counsel, does not
believe that the resolution of these matters will have a material adverse effect
upon the Company's financial position or results of operations.


                                                                              48
<PAGE>

Note 10 - Income Taxes:

          Income taxes from continuing operations consist of the following:

<TABLE>
<CAPTION>

          Year Ended December 31,                                     1999                 1998                1997
          ----------------------------------------------------------------------------------------------------------------------
<S>                                                                <C>                  <C>                  <C>
          Current
              Federal......................................         $42,144,000          $28,841,000         $15,544,000
              State........................................           3,369,000            1,671,000             726,000
                                                                    -----------         ------------        ------------

                                                                     45,513,000           30,512,000          16,270,000
                                                                     ----------           ----------          ----------
          Deferred, including current deferred
              Federal......................................          (2,577,000)          (3,020,000)            607,000
              State........................................            (906,000)            (588,000)            286,000
                                                                    -----------            ----------       ------------


                                                                     (3,483,000)          (3,608,000)            893,000
                                                                    -----------          ------------       ------------

          Total income taxes from continuing
              operations...................................         $42,030,000          $26,904,000         $17,163,000


          ------------------------------------------------------------------------------------------------------------------------
</TABLE>

          The effective income tax rate from continuing operations differs from
          the Federal income tax statutory rate due to the following:

<TABLE>
<CAPTION>
          Year Ended December 31,                                      1999              1998            1997
          ----------------------------------------------------------------------------------------------------------------------
<S>                                                                    <C>               <C>             <C>
          Statutory rate.....................................          35.0%             35.0%           35.0%
          State taxes, net of Federal tax benefit............           1.4               1.0             1.3
          Foreign losses.....................................           1.5               3.2             1.2
          Other, net.........................................           0.6              (0.7)            1.5
                                                                      -----             -----           -----

                                                                       38.5%             38.5%           39.0%

          ------------------------------------------------------------------------------------------------------------------
</TABLE>

          Deferred income taxes for 1999, 1998, and 1997 reflect the impact of
          "temporary differences" between the amount of assets and liabilities
          for financial reporting purposes and such amounts as measured by tax
          laws and regulations. Principal items comprising the deferred income
          tax provision (benefit) from continuing operations are as follows:

<TABLE>
<CAPTION>

          Year Ended December 31,                                       1999                   1998                   1997
          ------------------------------------------------------------------------------------------------------------------------
<S>                                                               <C>                     <C>                     <C>
          Difference in financial reporting and income
               tax depreciation methods....................       $     (62,000)          $    385,000            $    996,000
          Reserves not currently deductible................             (11,000)             1,000,000                 (73,000)
          Capitalized software currently deductible for
               tax purposes, net of amortization...........            (504,000)              (674,000)              1,662,000
          State deferred income taxes......................            (589,000)              (382,000)                186,000
          Revenue and expense recognized in
               different periods for financial reporting
               and income tax purposes.....................          (2,064,000)            (2,722,000)             (1,508,000)
          Other, net.......................................            (253,000)            (1,215,000)               (370,000)
                                                                    -----------          -------------             -----------

                                                                  $  (3,483,000)          $ (3,608,000)           $    893,000

          -------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              49
<PAGE>

          The net deferred income tax asset is comprised of the following:

<TABLE>
<CAPTION>
          Year Ended December 31,                                         1999                   1998
          ----------------------------------------------------------------------------------------------
          <S>                                                          <C>                    <C>
          Current deferred income taxes:
               Gross assets................................            $10,934,000            $7,598,000
               Gross liabilities...........................                     --                    --
                                                                       -----------            ----------
                                                                        10,934,000             7,598,000
                                                                       -----------            ----------
          Long-term deferred income taxes:
               Gross assets................................                 34,000               116,000
               Gross liabilities...........................             (6,893,000)           (7,409,000)
                                                                       -----------            ----------
                                                                        (6,859,000)           (7,293,000)
                                                                       -----------            ----------

          Net deferred income tax asset....................            $ 4,075,000            $  305,000

          ----------------------------------------------------------------------------------------------
</TABLE>

          The Company did not record any valuation allowance against deferred
          tax assets at December 31, 1999 and 1998.

          The tax effect of significant temporary differences representing
          deferred tax assets (liabilities) is as follows:

<TABLE>
<CAPTION>
          Year Ended December 31,                                       1999                     1998
          ---------------------------------------------------------------------------------------------
          <S>                                                       <C>                     <C>
          Difference in financial reporting and income
               tax depreciation methods....................         $   256,000             $  (119,000)
          Reserves not currently deductible................           1,052,000                 853,000
          Capitalized software currently deductible for
               tax purposes, net of amortization...........          (6,706,000)             (7,288,000)
          State deferred income taxes......................            (215,000)                173,000
          Revenue and expense recognized in
               different periods for financial reporting
               and income tax purposes.....................           9,708,000               6,572,000
          Unrealized holding gain on investments...........             (20,000)                114,000
                                                                    -----------             -----------

                                                                    $ 4,075,000             $   305,000

          ---------------------------------------------------------------------------------------------
</TABLE>

                                                                              50
<PAGE>

Note 11 - Segment Information:

         In June 1997, the Financial Accounting Standards Board issued Statement
         of Financial Accounting Standards No. 131, "Disclosures about Segments
         of an Enterprise and Related Information" ("SFAS 131"). SFAS 131
         establishes standards for the way public business enterprises report
         financial information about operating segments in financial statements.
         SFAS 131 also requires additional disclosures about product and
         services, geographic areas, and major customers. The Company adopted
         SFAS 131 in its December 31, 1998 financial statements. All prior
         period segment information has been restated to conform with the
         provisions of SFAS 131.

         The Company is organized around its four primary business lines:
         Technology Services, Asset Management, Mutual Fund Services, and
         Investments in New Business. Each segment offers different products and
         services that utilize different technology and marketing techniques.
         The information in the following tables is derived directly from the
         segments' internal financial reporting used for corporate management
         purposes. The accounting policies of the reportable segments are the
         same as those described in Note 1. The Company evaluates financial
         performance of its operating segments based on income from continuing
         operations before income taxes.

         Technology Services includes the Company's TRUST 3000 product line and
         trust operations outsourcing. Asset Management provides investment
         solutions through various investment products and services distributed
         directly or through professional investment advisors, financial
         planners, and other financial intermediaries to institutional or high-
         net-worth markets. Mutual Fund Services provides administration and
         distribution services to proprietary mutual funds created for banks,
         insurance firms, and investment management companies. Investments in
         New Business consists of the Company's Canadian and international
         operations which provides investment advisory services globally through
         investment products and services and performance evaluation and
         consulting services to Canadian pension plans.

         The following tables highlight certain financial information from
         continuing operations about each of the Company's segments for the
         years ended December 31, 1999, 1998, and 1997:

<TABLE>
<CAPTION>
                                                                    Mutual         Investments
                                   Technology         Asset          Fund             In New
         1999                       Services        Management     Services          Business         Other            Total
         -----------------------------------------------------------------------------------------------------------------------
         <S>                      <C>             <C>            <C>              <C>             <C>               <C>
         Revenues...........      $184,759,000    $138,365,000   $110,083,000     $ 22,985,000                      $456,192,000
                                  ------------    ------------   ------------     ------------                      ------------

         Operating
           income (loss)....      $ 61,022,000    $ 40,185,000   $ 24,221,000     $(10,636,000)   $(12,298,000)     $102,494,000
                                  ------------    ------------   ------------     ------------    ------------

         Other income, net..                                                                                        $  6,675,000
                                                                                                                    ------------

         Income from
           continuing
           operations
           before income
           taxes............                                                                                        $109,169,000
                                                                                                                    ------------

         Depreciation and
           amortization.....      $ 11,100,000    $   2,218,000  $   1,309,000    $    778,000    $    388,000      $ 15,793,000
                                  ------------    -------------  -------------    ------------    ------------      ------------

         Capital
           expenditures.....      $ 12,047,000    $   2,377,000  $     547,000    $    878,000    $  1,405,000      $ 17,254,000
                                  ------------    -------------  -------------    ------------    ------------      ------------

         Total assets.......      $ 88,870,000    $  29,803,000  $  23,446,000    $ 28,619,000    $ 83,041,000      $253,779,000
                                  ------------    -------------  -------------    ------------    ------------      ------------
         -----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              51
<PAGE>

<TABLE>
<CAPTION>
                                                                      Mutual        Investments
                                     Technology         Asset          Fund           In New
          1998                        Services        Management     Services        Business          Other            Total
         ------------------------------------------------------------------------------------------------------------------------
          <S>                       <C>              <C>            <C>            <C>             <C>               <C>
          Revenues............      $167,484,000     $90,056,000    $95,136,000    $ 13,443,000                      $366,119,000
                                    ------------     -----------    -----------    ------------                      ------------

          Operating
            income (loss).....      $ 46,793,000     $19,881,000    $24,993,000    $(10,319,000)   $(13,463,000)     $ 67,885,000
                                    ------------     -----------    -----------    ------------    ------------

          Other income, net...                                                                                       $  1,998,000
                                                                                                                     ------------

          Income from
            continuing
            operations before
            income taxes......                                                                                       $ 69,883,000
                                                                                                                     ------------

          Depreciation and
            amortization......      $ 10,468,000     $ 1,954,000    $ 1,576,000    $    899,000    $    791,000      $ 15,688,000
                                    ------------     -----------    -----------    ------------    ------------      ------------

          Capital
            expenditures......      $ 16,999,000     $ 2,469,000    $   772,000    $    763,000    $     771,000     $ 21,774,000
                                    ------------     -----------    -----------    ------------    -------------     ------------

          Total assets........      $ 96,856,000     $23,084,000    $17,362,000    $ 15,427,000    $  56,043,000     $208,772,000
                                    ------------     -----------    -----------    ------------    -------------     ------------
         ------------------------------------------------------------------------------------------------------------------------

<CAPTION>
                                                                      Mutual        Investments
                                     Technology         Asset          Fund           In New
          1997                        Services        Management     Services        Business          Other            Total
         ------------------------------------------------------------------------------------------------------------------------
          <S>                       <C>              <C>            <C>             <C>            <C>               <C>
          Revenues............      $129,525,000     $61,871,000    $83,157,000     $14,439,000    $  3,757,000      $292,749,000
                                    ------------     -----------    -----------     -----------    ------------      ------------

          Operating
            income (loss).....      $ 37,146,000     $ 3,281,000    $23,858,000     $(5,799,000)   $(12,974,000)     $ 45,512,000
                                    ------------     -----------    -----------     -----------    ------------

          Other expense, net..                                                                                       $ (1,505,000)
                                                                                                                     ------------
          Income from
            continuing
            operations before
            income taxes......                                                                                       $ 44,007,000
                                                                                                                     ------------

          Depreciation and
            amortization......      $  8,634,000     $ 1,791,000    $ 1,883,000     $ 1,021,000    $    739,000      $ 14,068,000
                                    ------------     -----------    -----------     -----------    ------------      ------------

          Capital
            expenditures......      $  9,465,000     $ 1,636,000    $   600,000     $   225,000    $  1,029,000      $ 12,955,000
                                    ------------     -----------    -----------     -----------    ------------      ------------

          Total assets........      $ 89,471,000     $17,464,000    $15,559,000     $29,994,000    $ 16,396,000      $168,884,000
                                    ------------     -----------    -----------     -----------    ------------      ------------
         ------------------------------------------------------------------------------------------------------------------------
</TABLE>

         Other consists of expenses and assets attributable to corporate
         overhead groups that are not allocated to the operating segments for
         internal financial reporting purposes. Other in 1997 also consists of
         the revenues, expenses, and assets of LSV, which are not allocated to
         any operating segment. Unallocated assets primarily consist of cash and
         cash equivalents, deferred tax assets, the investment in and assets of
         LSV, and certain other shared services assets.

                                                                              52
<PAGE>

          The following table presents the details of other income (expense):

<TABLE>
<CAPTION>
          For the Year Ended December 31,                                1999                   1998                    1997
          ----------------------------------------------------------------------------------------------------------------------
          <S>                                                        <C>                    <C>                      <C>
          Equity in the earnings of
             unconsolidated affiliate......................          $ 6,765,000            $ 3,015,000              $        --
          Interest income..................................            2,285,000              1,558,000                  983,000
          Interest expense.................................           (2,375,000)            (2,575,000)              (2,488,000)
                                                                     -----------            -----------              -----------

                                                                     $ 6,675,000            $ 1,998,000              $(1,505,000)

          ----------------------------------------------------------------------------------------------------------------------
</TABLE>

          The following table presents revenues by country based on the location
          of the use of the product or services:

<TABLE>
<CAPTION>
          For the Year Ended December 31,                               1999                   1998                   1997
          --------------------------------------------------------------------------------------------------------------------
          <S>                                                      <C>                    <C>                     <C>
          United States....................................        $429,517,000           $350,729,000            $277,655,000
          International Operations.........................          26,675,000             15,390,000              15,094,000
                                                                   ------------           ------------            ------------

                                                                   $456,192,000           $366,119,000            $292,749,000

          --------------------------------------------------------------------------------------------------------------------
</TABLE>

          The following table presents assets based on its location:

<TABLE>
<CAPTION>
                                                                        1999                  1998                    1997
          --------------------------------------------------------------------------------------------------------------------
          <S>                                                      <C>                    <C>                     <C>
          United States....................................        $231,620,000           $193,133,000            $141,652,000
          International Operations.........................          22,159,000             15,639,000              27,232,000
                                                                   ------------           ------------            ------------

                                                                   $253,779,000           $208,772,000            $168,884,000

          --------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              53
<PAGE>

Note 12 - Related Party Transactions:

         SIMC, either by itself or through its wholly owned subsidiaries, is a
         party to Investment Advisory and Administration Agreements with several
         regulated investment companies ("RICs"), which are administered by the
         Company. Shares of the RICs are offered to clients of the Company and
         its subsidiaries. Under the Investment Advisory and Administration
         Agreements, SIMC receives a fee for providing investment advisory,
         administrative, and accounting services to the RICs. The investment
         advisory and administration fee is a fixed percentage of the average
         daily net asset value of each RIC, subject to certain limitations.
         Investment advisory and administration fees received by the Company
         totaled $196,608,000, $152,076,000, and $119,606,000 in 1999, 1998, and
         1997, respectively. SIDCO is a party to Distribution Agreements with
         several RICs, which are advised and/or administered by SIMC. SIDCO
         receives a fee from the RICs for providing distribution services
         pursuant to the provisions of various Rule 12b-1 Plans adopted by the
         RICs. These distribution fees totaled $25,883,000, $15,480,000, and
         $7,269,000 in 1999, 1998, and 1997, respectively.

Note 13 - Quarterly Financial Data (Unaudited):

<TABLE>
<CAPTION>
                                                                              For the Three Months Ended
                                                         --------------------------------------------------------------------
          1999                                            March 31           June 30         Sept. 30          Dec. 31
         --------------------------------------------------------------------------------------------------------------------
          <S>                                           <C>               <C>              <C>               <C>
          Revenues...................................   $104,318,000      $111,622,000     $117,199,000      $123,053,000
          Income from continuing operations
             before income taxes.....................   $ 24,697,000      $ 26,234,000     $ 28,845,000      $ 29,393,000
          Income from continuing operations..........   $ 15,189,000      $ 16,134,000     $ 17,740,000      $ 18,076,000
          Net income.................................   $ 15,189,000      $ 16,134,000     $ 17,740,000      $ 19,368,000 (a)
          Basic earnings per common share
             from continuing operations..............   $        .85      $        .91     $       1.00      $       1.02

          Basic earnings per common share............   $        .85      $        .91     $       1.00      $       1.09 (a)

          Diluted earnings per common share
             from continuing operations..............   $        .79      $        .85     $        .94      $        .96

          Diluted earnings per common share..........   $        .79      $        .85     $        .94      $       1.03 (a)

         --------------------------------------------------------------------------------------------------------------------
</TABLE>

         (a) Includes income from disposal of discontinued operations of
             $1,292,000 or $.07 basic earnings per common share and $.07 diluted
             earnings per common share (See Note 2).

<TABLE>
<CAPTION>
                                                                              For the Three Months Ended
                                                         --------------------------------------------------------------------
          1998                                             March 31           June 30         Sept. 30         Dec. 31
         --------------------------------------------------------------------------------------------------------------------
          <S>                                            <C>                <C>              <C>             <C>
          Revenues...................................    $81,871,000        $85,499,000      $90,492,000     $108,257,000
          Income from continuing operations
             before income taxes.....................    $12,458,000        $15,709,000      $18,546,000     $ 23,170,000
          Income from continuing operations..........    $ 7,597,000        $ 9,585,000      $11,551,000     $ 14,246,000
          Net income.................................    $ 7,597,000        $ 9,585,000      $11,551,000     $ 14,956,000 (a)
          Basic earnings per common share
             from continuing operations..............    $       .43        $       .54      $       .64     $        .80

          Basic earnings per common share............    $       .43        $       .54      $       .64     $        .84 (a)

          Diluted earnings per common share
             from continuing operations..............    $       .40        $       .50      $       .60     $        .75

          Diluted earnings per common share..........    $       .40        $       .50      $       .60     $        .79 (a)

         --------------------------------------------------------------------------------------------------------------------
</TABLE>

          (a) Includes income from disposal of discontinued operations of
              $710,000 or $.04 basic earnings per common share and $.04 diluted
              earnings per common share (See Note 2).

                                                                              54
<PAGE>

                   SEI INVESTMENTS COMPANY AND SUBSIDIARIES
                   ----------------------------------------
                SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
                -----------------------------------------------
       FOR EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1999
       -----------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                           Additions
                                                                   ------------------------
                                                     Balance at    Charged to      Charged                            Balance
                                                     Beginning      Costs and      to Other                            at End
              Description                             of Year        Expenses      Accounts      (Deductions)         of Year
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>           <C>             <C>           <C>                 <C>
For the Year Ended December 31, 1997:

    Allowance for doubtful accounts                  $1,350,000     $      --      $     --        $(150,000)        $1,200,000
                                                     ==========     =========      ========        =========         ==========

For the Year Ended December 31, 1998:

    Allowance for doubtful accounts                  $1,200,000     $      --      $     --        $      --         $1,200,000
                                                     ==========     =========      ========        =========         ==========

For the Year Ended December 31, 1999:

    Allowance for doubtful accounts                  $1,200,000     $ 500,000      $     --        $      --         $1,700,000
                                                     ==========     =========      ========        =========         ==========
</TABLE>

                                                                              55
<PAGE>

Item 9. Changes in and disagreements with Accountants on Accounting and
        ---------------------------------------------------------------
Financial Disclosure.
- --------------------

None.

                                                                              56
<PAGE>

                                   PART III


Item 10.  Directors and Executive Officers of the Registrant.
          --------------------------------------------------

The information required by this item concerning directors is hereby
incorporated by reference to the Company's definitive proxy statement for its
2000 Annual Meeting of Shareholders to be filed with the Securities and Exchange
Commission within 120 days after December 31, 1999 pursuant to Regulation 14A
under the Securities Exchange Act of 1934, as amended (the "2000 Proxy
Statement").

The executive officers of the Company are as follows:

ALFRED P. WEST, JR., 57, has been the Chairman of the Board of Directors and
Chief Executive Officer of the Company since its inception in 1968. Mr. West was
President from June 1979 to August 1990.

CARMEN V. ROMEO, 56, has been an Executive Vice President since December 1985.
Mr. Romeo has been a Director since June 1979. Mr. Romeo was Treasurer and Chief
Financial Officer from June 1979 to September 1996.

RICHARD B. LIEB, 52, has been an Executive Vice President since October 1990,
and a Director since May 1995.

CARL A. GUARINO, 42, has been an Executive Vice President since March 2000 and a
Senior Vice President since April 1988, and was General Counsel from April 1988
to January 1994.

EDWARD D. LOUGHLIN, 49, has been an Executive Vice President since January 1994
and a Senior Vice President since January 1988.

DENNIS J. MCGONIGLE, 39, has been an Executive Vice President since July 1996.
Mr. McGonigle has been a Senior Vice President since January 1994 and a Vice
President since January 1991.

WAYNE M. WITHROW, 44, has been an Executive Vice President and Chief Information
Officer since March 2000. Mr. Withrow has been a Senior Vice President since
January 1994.

KEVIN P. ROBINS, 38, has been a Senior Vice President since January 1994 and a
Vice President since January 1992.  Mr. Robins was General Counsel from January
1994 to March 2000.

TODD B. CIPPERMAN, 34, has been a Senior Vice President and General Counsel
since March 2000 and a Vice President since May 1995.

                                                                              57
<PAGE>

Item 11.  Executive Compensation.
          ----------------------

The information called for in this item is hereby incorporated by reference to
the 2000 Proxy Statement.

Item 12.  Security Ownership of Certain Beneficial Owners and Management.
          --------------------------------------------------------------

The information called for in this item is hereby incorporated by reference to
the 2000 Proxy Statement.

Item 13.  Certain Relationships and Related Transactions.
          ----------------------------------------------

The information called for in this item is hereby incorporated by reference to
the 2000 Proxy Statement.

                                                                              58
<PAGE>

                                    PART IV
                                    -------

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K.
          ----------------------------------------------------------------

(a)  1 and 2.     Financial Statements and Financial Statement Schedules.  The
                  ------------------------------------------------------
                  following is a list of the Consolidated Financial Statements
                  of the Company and its subsidiaries and supplementary data
                  filed as part of Item 8 hereof:

                  Report of Independent Public Accountants
                  Consolidated Balance Sheets -- December 31, 1999 and 1998
                  Consolidated Statements of Operations -- For the years ended
                      December 31, 1999, 1998, and 1997
                  Consolidated Statements of Shareholders' Equity -- For the
                      years ended December 31, 1999, 1998, and 1997
                  Consolidated Statements of Cash Flows -- For the years ended
                      December 31, 1999, 1998, and 1997
                  Notes to Consolidated Financial Statements
                  Schedule II -- Valuation and Qualifying Accounts

                  All other schedules are omitted because they are not
                  applicable, or not required, or because the required
                  information is included in the Consolidated Financial
                  Statements or notes thereto.

           3.     Exhibits, Including Those Incorporated by Reference.  The
                  ---------------------------------------------------
                  exhibits to this Report are listed on the accompanying index
                  to exhibits and are incorporated herein by reference or are
                  filed as part of this annual report on Form 10-K.

(b)               Reports on Form 8-K.  No reports on Form 8-K were filed by
                  -------------------
                  the Company during the quarter ended December 31, 1999.

                                                                              59
<PAGE>

                                  SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

                                                SEI INVESTMENTS COMPANY

Date March 29, 2000                             By /s/ Kathy Heilig
     ----------------                             -----------------------------
                                                  Kathy Heilig
                                                  Vice President and Controller
                                                  (Principal Accounting Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the Registrant and
in the capacities and on dates indicated.


Date March 29, 2000                             By /s/ Alfred P. West, Jr.
     ----------------                              ----------------------------
                                                   Alfred P. West, Jr.
                                                   Chairman of the Board,
                                                   Chief Executive Officer,
                                                   and Director

Date March 29, 2000                             By /s/ Carmen V. Romeo
     ----------------                              ----------------------------
                                                   Carmen V. Romeo
                                                   Executive Vice President and
                                                   Director


Date March 29, 2000                             By /s/ Richard B. Lieb
     ----------------                              ----------------------------
                                                   Richard B. Lieb
                                                   Executive Vice President and
                                                   Director

Date March 29, 2000                             By /s/ Henry H. Greer
     ----------------                              ----------------------------
                                                   Henry H. Greer
                                                   Director

Date March 29, 2000                             By /s/ William M. Doran
     ----------------                              ----------------------------
                                                   William M. Doran
                                                   Director

Date March 29, 2000                             By /s/ Henry H. Porter, Jr.
     ----------------                              ----------------------------
                                                   Henry H. Porter, Jr.
                                                   Director

Date March 29, 2000                             By /s/ Kathryn M. McCarthy
     ----------------                              ----------------------------
                                                   Kathryn M. McCarthy
                                                   Director

                                                                              60
<PAGE>

                                  EXHIBIT INDEX
                                  -------------

The following is a list of exhibits filed as part of this annual report on
Form 10-K. For exhibits incorporated by reference, the location of the exhibit
in the previous filing is indicated in parentheses.

     3.1       Articles of Incorporation of the Registrant as amended on January
               21, 1983. (Incorporated by reference to exhibit 3.1 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1982.)
     3.1.2     Amendment to Articles of Incorporation of the Registrant, dated
               May 21, 1992. (Incorporated by reference to exhibit 3.1.2 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1992.)
     3.1.3     Amendment to Articles of Incorporation of the Registrant, dated
               May 26, 1994. (Incorporated by reference to exhibit 3.1.3 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1994.)
     3.1.4     Amendment to Articles of Incorporation of the Registrant, dated
               November 21, 1996. (Incorporated by reference to exhibit 3.1.4 to
               the Registrant's Annual Report on Form 10-K for the fiscal year
               ended December 31, 1996.)
     3.2       By-Laws. (Incorporated by reference to exhibit 3.2 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1983.)
     3.2.1     Amendment to By-Laws, dated December 19, 1988. (Incorporated by
               reference to exhibit 3.2.1 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1988.)
     3.2.2     Amendment to By-Laws, dated July 12, 1990. (Incorporated by
               reference to exhibit 3.2.2 to the Registrant's Quarterly Report
               on Form 10-Q for the quarter ended June 30, 1990.)
     4.1       Form of Certificate for Shares of Common Stock. (Incorporated by
               reference to exhibit 4.1 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1988.)
     4.2       Rights Agreement dated December 10, 1998. (Incorporated by
               reference to exhibit 4.2 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1998.)

               Note: Exhibits 10.1 through 10.9 constitute the management
               contracts and executive compensatory plans or arrangements in
               which certain of the directors and executive officers of the
               Registrant participate.

     10.1      Stock Option Plan, Amended, Restated and Renewed as of February
               11, 1997. (Incorporated by reference to exhibit 99(a) to the
               Registrant's Registration Statement on Form S-8 (No. 333-63709)
               filed September 18, 1998.)
     10.1.1    1997 Stock Option Plan. (Incorporated by reference to exhibit
               99(b) to the Registrant's Registration Statement on Form S-8
               (No. 333-63709) filed September 18, 1998.)
     10.1.2    1997 Option Share Deferral Plan. (Incorporated by reference to
               exhibit 99(c) to the Registrant's Registration Statement on
               Form S-8 (No. 333-63709) filed September 18, 1998.)
     10.1.3    1998 Equity Compensation Plan. (Incorporated by reference to
               exhibit 99(f) to the Registrant's Registration Statement on
               Form S-8 (No. 333-63709) filed September 18, 1998.)
     10.1.4*   First Amendment to the 1998 Equity Compensation Plan (Page 64).
     10.2      Employee Stock Ownership Plan. (Incorporated by reference to
               exhibit 10.3 (b) to the Registrant's Annual Report on Form 10-K
               for the fiscal year ended December 31, 1985.)
     10.3      Employee Stock Purchase Plan, Amended and Restated as of May 8,
               1991. (Incorporated by reference to exhibit 10.3 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1991.)
     10.3.1    Employee Stock Purchase Plan as Amended and Restated on October
               15, 1997. (Incorporated by reference to exhibit 99(e) to the
               Registrant's Registration Statement on Form S-8 (No. 333-63709)
               filed September 18, 1998.)
     10.4      SEI Capital Accumulation Plan. (Incorporated by reference to
               exhibit 99(e) to the Registrant's Registration Statement on Form
               S-8 (No. 333-41343) filed December 2, 1997.)
     10.5      Stock Option Plan for Non-Employee Directors. (Incorporated by
               reference to exhibit 10.12 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1988.)
     10.5.1    Amendment 1997-1 to the Stock Option Plan for Non-Employee
               Directors. (Incorporated by reference to exhibit 10.5.1 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1997.)
     10.5.2    1997 Option Share Deferral Plan for Non-Employee Directors.
               (Incorporated by reference to exhibit 99(d) to the Registrant's
               Registration Statement on Form S-8 (No. 333-63709) filed
               September 18, 1998.)

                                                                              61
<PAGE>

     10.6      Employment Agreement, dated May 25, 1979, between Alfred P. West,
               Jr. and the Registrant. (Incorporated by reference to exhibit
               10.7 to the Registrant's Annual Report on Form 10-K for the
               fiscal year ended December 31, 1990.)
     10.7      Employment Agreement, dated January 21, 1987, between
               Gilbert L. Beebower and the Registrant. (Incorporated by
               reference to exhibit 10.8 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1990.)
     10.8.1    Employment Agreement, dated July 1, 1987, between Richard B. Lieb
               and the Registrant. (Incorporated by reference to exhibit 10.9 to
               the Registrant's Annual Report on Form 10-K for the fiscal year
               ended December 31, 1990.)
     10.8.2    Stock Option Agreement, dated February 23, 1989, between
               Richard B. Lieb and a subsidiary of the Registrant, as amended.
               (Incorporated by reference to exhibit 10.8.2 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1992.)
     10.9      Summary of Company Bonus Plan for Senior Management.
               (Incorporated by reference to exhibit 10.9 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1993.)
     10.11     Directors and Officers Liability Insurance Policy. (Incorporated
               by reference to exhibit 10.9 to the Registrant's Registration
               Statement on Form S-8 (No.2-78133) filed June 25, 1982.)
     10.12     Lease Agreement, dated as of January 1, 1990, between The Canada
               Life Assurance Company and the Registrant. (Incorporated by
               reference to exhibit 10.11 to the Registrant's Annual Report on
               Form 10-K for the fiscal year ended December 31, 1990.)
     10.13     Lease Agreement, dated as of May 1, 1991, between Two North
               Riverside Plaza Joint Venture and the Registrant. (Incorporated
               by reference to exhibit 10.11 to the Registrant's Annual Report
               on Form 10-K for the fiscal year ended December 31, 1991.)
     10.14     Credit Agreement, dated May 31, 1992, between Provident National
               Bank and the Registrant, as amended. (Incorporated by reference
               to exhibit 10.12 to the Registrant's Annual Report on Form 10-K
               for the fiscal year ended December 31, 1992.)
     10.14.1   Second Modification Agreement to the Credit Agreement, dated
               April 19, 1993, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.1 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1993.)
     10.14.2   Third Modification Agreement to the Credit Agreement, dated May
               31, 1993, between PNC Bank, National Association, successor by
               merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.2 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1993.)
     10.14.3   Fourth Modification Agreement to the Credit Agreement, dated
               March 14, 1994, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.3 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1994.)
     10.14.4   Fifth Modification Agreement to the Credit Agreement, dated May
               31, 1994, between PNC Bank, National Association, successor by
               merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.4 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1994.)
     10.14.5   Sixth Modification Agreement to the Credit Agreement, dated May
               5, 1995, between PNC Bank, National Association, successor by
               merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.5 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1995.)
     10.14.6   Seventh Modification Agreement to the Credit Agreement, dated
               June 15, 1995, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.6 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1995.)
     10.14.7   Eighth Modification Agreement to the Credit Agreement, dated
               October 19, 1995, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Incorporated by reference to exhibit 10.14.7 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1995.)
     10.14.8   Ninth Modification Agreement to the Credit Agreement, dated March
               31, 1996, between PNC Bank, National Association, successor by
               merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.8 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1996.)

                                                                              62
<PAGE>

     10.14.9   Tenth Modification Agreement to the Credit Agreement, dated May
               31, 1996, between PNC Bank, National Association, successor by
               merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.9 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1996.)
     10.14.10  Eleventh Modification Agreement to the Credit Agreement, dated
               October 1, 1996, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Incorporated by reference to exhibit 10.14.10 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1996.)
     10.14.11  Release and Modification Agreement to the Credit Agreement, dated
               February 20, 1997, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Incorporated by reference to exhibit 10.14.11 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1996.)
     10.14.12  Thirteenth Modification Agreement to the Credit Agreement, dated
               May 30, 1997, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.12 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1997.)
     10.14.13  Fourteenth Modification Agreement to the Credit Agreement, dated
               December 31, 1997, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Incorporated by reference to exhibit 10.14.13 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1997.)
     10.14.14  Fifteenth Modification Agreement to the Credit Agreement, dated
               March 31, 1998, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.14 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1998.)
     10.14.15  Sixteenth Modification Agreement to the Credit Agreement, dated
               May 29, 1998, between PNC Bank, National Association, successor
               by merger to Provident National Bank, and the Registrant.
               (Incorporated by reference to exhibit 10.14.15 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1998.)
     10.14.16  Seventeenth Modification Agreement to the Credit Agreement, dated
               September 29, 1998, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Incorporated by reference to exhibit 10.14.16 to the
               Registrant's Annual Report on Form 10-K for the fiscal year ended
               December 31, 1998.)
     10.14.17* Eighteenth Modification Agreement to the Credit Agreement, dated
               November 18, 1999, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Page 66)
     10.14.18* Nineteenth Modification Agreement to the Credit Agreement, dated
               December 30, 1999, between PNC Bank, National Association,
               successor by merger to Provident National Bank, and the
               Registrant. (Page 70)
     10.15     Pledge Agreement, dated May 31, 1992, between Provident National
               Bank and the Registrant. (Incorporated by reference to exhibit
               10.13 to the Registrant's Annual Report on Form 10-K for the
               fiscal year ended December 31, 1992.)
     10.16     Master Lease Agreement, dated December 29, 1989, between
               Varilease Corporation and the Registrant, as amended.
               (Incorporated by reference to exhibit 10.14 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1992.)
     10.17     Note Purchase Agreement, dated as of February 24, 1997, with
               respect to the issuance by the Registrant of $20,000,000 7.20%
               Senior Notes, Series A, due February 24, 2007, and $15,000,000
               7.27% Senior Notes, Series B, due February 24, 2012.
               (Incorporated by reference to exhibit 10.17 to the Registrant's
               Annual Report on Form 10-K for the fiscal year ended December 31,
               1996.)
     10.17.1   First Amendment, dated December 15, 1998, to Note Purchase
               Agreement, dated February 24, 1997. (Incorporated by reference to
               exhibit 10.17.1 to the Registrant's Annual Report on Form 10-K
               for the fiscal year ended December 31, 1998.)
     21*       Subsidiaries of the Registrant. (Page 73)
     23*       Consent of Independent Public Accountants. (Page 75)
     27*       Financial Data Schedule
     99*       Miscellaneous exhibits. (Page 77)

* Filed herewith as an exhibit to this Form 10-K.

                                                                              63

<PAGE>

                                                                  EXHIBIT 10.1.4

                            SEI INVESTMENTS COMPANY

                        BOARD OF DIRECTORS RESOLUTIONS

       WHEREAS, the SEI Investments Company, a Pennsylvania corporation (the
"Company"), maintains the SEI Investments Company 1998 Equity Compensation Plan
(the "Plan") for the benefit of its eligible employees, certain consultants and
advisors who perform services for the Company, and non-employee members of the
Company's Board of Directors;

       WHEREAS, the Board of Directors of the Company (the "Board") determined
at its December 20, 1999 Board meeting to amend the Plan to provide the Board
with the discretion to reduce the number of shares of the Company's common stock
("Company Stock") that are subject to the annual grant of nonqualified stock
options to non-employee directors of the Company; and

       WHEREAS, pursuant to section 16(a) of the Plan provides that, the Board
may amend the Plan at any time.

       NOW, THEREFORE, in accordance with the foregoing, the Plan shall be
amended as follows:

       The following sentence shall be added to the end of Section 6(b) of
the Plan:

               "Notwithstanding the foregoing, effective for annual grants made
               in 1999 and thereafter, the Board, in its sole discretion, may
               reduce the number of shares of Company Stock subject to the
               annual Nonqualified Stock Option grants made to the Non-Employee
               Directors, pursuant to this Section 6(b), at anytime prior to the
               grant."

      IN WITNESS WHEREOF, and as evidence of the adoption of Amendment 1999-1
set forth herein, the Board of Directors has caused this Amendment to be
executed this 9th day of March 2000.

                                                        SEI INVESTMENTS COMPANY



                                                                              65


<PAGE>

                                                                EXHIBIT 10.14.17


                      EIGHTEENTH MODIFICATION AGREEMENT
                      ----------------------------------

     THIS AGREEMENT is made as of the 18th day of November, 1999, and is
effective as of September 1, 1999, by and among PNC BANK, NATIONAL ASSOCIATION,
successor by merger to Provident National Bank, a national banking association
with offices at 1600 Market Street, Philadelphia, Pennsylvania 19103 (the
"Bank"), and COMPANY (formerly SEI Corporation), a Pennsylvania corporation (the
"Borrower").

                                  BACKGROUND
                                  ----------

     Bank and Borrower have entered into a Credit Agreement effective as of May
31, 1992 as amended by a Waiver and First Modification Agreement between Bank
and Borrower dated as of September 30, 1992, a Second Modification Agreement
between Bank and Borrower dated as of April 19, 1993, a Third Modification
Agreement between Bank and Borrower dated as of May 31, 1993, a Fourth
Modification Agreement between Bank and Borrower dated as of March 14, 1994, a
Fifth Modification Agreement dated as of May 31, 1994, a Sixth Modification
Agreement dated as of May 5, 1995, a Seventh Modification Agreement effective as
of May 31, 1995, an Eighth Modification Agreement dated October 19, 1995, a
Ninth Modification Agreement dated March 31, 1996 a Tenth Modification Agreement
dated as of May 31, 1996, an Eleventh Modification Agreement dated October 1,
1996, a Release and Modification Agreement dated February 20, 1997, a Thirteenth
Modification Agreement dated May 30, 1997, a Fourteenth Modification Agreement
dated as of December 31, 1997, a Fifteenth Modification Agreement dated as of
March 31, 1998, a Sixteenth Modification Agreement dated as of May 29, 1998 and
a Seventeenth Modification Agreement dated as of February, 1999 (as so amended,
the "Credit Agreement") pursuant to which Bank agreed to make up to $50,000,000
in loans (the "Loans") to Borrower. Capitalized terms used herein and not
otherwise defined shall have the meanings ascribed to them in the Credit
Agreement. The Loans are evidenced by Borrower's note originally dated May 31,
1992 and amended and restated September 30, 1992, May 31, 1996 and October 1,
1996 (the "Note") in the principal amount of $50,000,000.

     The Borrower and Bank have agreed to extend the Termination Date, as
contemplated by the Credit Agreement, and to agree to certain other
modifications to the Credit Agreement, upon the terms and conditions set forth
herein.


     NOW, THEREFORE, the parties hereto, intending to be legally bound hereby,
agree as follows:

                                   AGREEMENT
                                   ---------

     1.   Terms.  Capitalized terms used herein and not otherwise defined herein
          -----
shall have the meanings given to such terms in the Credit Agreement.

     2.   Amendments to Credit Agreement.  The Credit Agreement is hereby
          ------------------------------
amended as follows:

               (a)  As contemplated by Section 9.15 of the Credit the
               Termination Date and the date on which the Credit Commitment
               shall expire and the Credit Period shall end is hereby extended
               to August 31, 2000.

               (b)  Section 2.2 of the Credit Agreement is hereby amended by
               changing the Commitment Fee rate from `1/10% per annum" to one-
               quarter of one percent (1/4%) per annum"

               (c)  Section 3.3(b) of the Credit Agreement is hereby amended to
               change the interest rate spread over the Eurodollar Rate from
               "three-tenths of one percent (.30%)" to "one and one-quarter
               percent (1.25%)".


                                                                              67

<PAGE>

               (d)  A new representation is hereby added to the Credit Agreement
               as Section 5.14, which shall read in full as follows:

                      "5.14. The Company has reviewed the areas within its
                      business and operations which could be adversely affected
                      by, and has developed or is developing a program to
                      address on a timely basis the risk that certain computer
                      applications used by the Company may be unable to
                      recognize and perform properly date-sensitive functions
                      involving dates prior to and after December 31, 1999 (the
                      "Year 2000 Problem"). The Year 2000 Problem will not
                      result, and is not reasonably expected to result, in any
                      material adverse effect on the business, properties,
                      assets, financial condition, results of operations or
                      prospects of the Company, or the ability of the Company to
                      duly and punctually pay or perform its obligations
                      hereunder and the other Loan Documents."

     3.   Loan Documents.  Except where the context clearly requires otherwise,
          --------------
all references to the Credit Agreement in the Note or any other document
delivered to Bank in connection therewith shall be to the Credit Agreement as
amended by this Agreement.

     4.   Borrower's Ratification. Borrower agrees that it has no defenses or
          -----------------------
set-offs against the Bank, its officers, directors, employees, agents or
attorneys with respect to the Note or the Credit Agreement, all of which are in
full force and effect and shall remain in full force and effect unless and until
modified or amended in writing in accordance with their terms. Borrower hereby
ratifies and confirms its obligations under the Note and the Credit Agreement
and agrees that the execution and the delivery of this Agreement does not in any
way diminish or invalidate any of its obligations thereunder.

     5.   Representations and Warranties.  Borrower hereby certifies that:
          ------------------------------

          (a)  except as otherwise previously disclosed to Bank in any manner
whatsoever, the representations and warranties made in the Credit Agreement are
true and correct as of the date hereof.

          (b)  no Event of Default under the Note or the Credit Agreement and no
event which with the passage of time or the giving of notice or both could
become an Event of Default, exists on the date hereof; and

          (c)  this Agreement has been duly authorized, executed and delivered
so as to constitute the legal, valid and binding obligation of Borrower,
enforceable in accordance with its terms.

     All of the above representations and warranties shall survive the making of
this Agreement.

     6.   No Waiver. This Agreement does not and shall not be deemed to
          ---------
constitute a waiver by Bank of any Event of Default under the Note or Credit
Agreement, or of any event which with the passage of time or the giving of
notice or both would constitute an Event of Default, nor does it obligate Bank
to agree to any further modifications of the terms of the Credit Agreement or
constitute a waiver of any of Bank's other rights or remedies.

     7.   Miscellaneous.
          -------------

          (a)  All terms, conditions, provisions and covenants in the Note, the
Credit Agreement, and all other documents delivered to Bank in connection
therewith shall remain unaltered and in full force and effect except as modified
or amended hereby. To the extent that any term or provision of this Agreement is
or may be deemed expressly inconsistent with any term or provision in the Credit
Agreement, the Note or any other document executed in connection therewith, the
terms and provisions hereof shall control.

          (b)  This Agreement shall be governed by and construed according to
the laws of the Commonwealth of Pennsylvania.

          (c)  This Agreement shall inure to the benefit of, and be binding
upon, the parties hereto and their respective successors and assigns and may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.

                                                                              68


<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the day and year first above written.

                                               BORROWER
                                               --------

[SEAL]                                  SEI INVESTMENTS COMPANY
                                        (formerly SEI Corporation)

Attest:  /s/ Todd Cipperman             By:    /s/ Kathy Heilig
        ----------------------------           ------------------------------

Title:    Vice President                Title:  Controller and Treasurer
        ----------------------------           ------------------------------


                                               BANK
                                               ----

                                               PNC BANK, NATIONAL ASSOCIATION


                                        By:    /s/ Forrest B. Patterson, Jr.
                                               ------------------------------

                                        Title: Vice President
                                               ------------------------------


                                                                              69

<PAGE>

                                                                EXHIBIT 10.14.18

                       NINETEENTH MODIFICATION AGREEMENT
                       ---------------------------------

     THIS AGREEMENT is made as of the 30th day of December, 1999, by and among
PNC BANK, NATIONAL ASSOCIATION, successor by merger to Provident National Bank,
a national banking association with offices at 1600 Market Street, Philadelphia,
Pennsylvania 19103 (the "Bank"), and SEI INVESTMENTS COMPANY (formerly SEI
Corporation), a Pennsylvania corporation (the "Borrower").

                                  BACKGROUND
                                  ----------

     Bank and Borrower have entered into a Credit Agreement effective as of May
31, 1992 as amended by a Waiver and First Modification Agreement between Bank
and Borrower dated as of September 30, 1992, a Second Modification Agreement
between Bank and Borrower dated as of April 19, 1993, a Third Modification
Agreement between Bank and Borrower dated as of May 31, 1993, a Fourth
Modification Agreement between Bank and Borrower dated as of March 14, 1994, a
Fifth Modification Agreement dated as of May 31, 1994, a Sixth Modification
Agreement dated as of May 5, 1995, a Seventh Modification Agreement effective as
of May 31, 1995, an Eighth Modification Agreement dated October 19, 1995, a
Ninth Modification Agreement dated March 31, 1996 a Tenth Modification Agreement
dated as of May 31, 1996, an Eleventh Modification Agreement dated October 1,
1996, a Release and Modification Agreement dated February 20, 1997, a Thirteenth
Modification Agreement dated May 30, 1997, a Fourteenth Modification Agreement
dated as of December 31, 1997, a Fifteenth Modification Agreement dated as of
March 31, 1998, a Sixteenth Modification Agreement dated as of May 29, 1998, a
Seventeenth Modification Agreement dated as of February, 1999 and an Eighteenth
Modification Agreement effective as of September 1, 1999 (as so amended, the
"Credit Agreement") pursuant to which Bank agreed to make up to $50,000,000 in
loans (the "Loans") to Borrower. Capitalized terms used herein and not otherwise
defined shall have the meanings ascribed to them in the Credit Agreement. The
Loans are evidenced by Borrower's note originally dated May 31, 1992 and amended
and restated September 30, 1992, May 31, 1996 and October 1, 1996 (the "Note")
in the principal amount of $50,000,000.

     The Borrower and Bank have agreed to extend the Termination Date, as
contemplated by the Credit Agreement, and to agree to certain other
modifications to the Credit Agreement, upon the terms and conditions set forth
herein.


     NOW, THEREFORE, the parties hereto, intending to be legally bound hereby,
agree as follows:

                                   AGREEMENT
                                   ---------

     1.   Terms.  Capitalized terms used herein and not otherwise defined herein
          -----
shall have the meanings given to such terms in the Credit Agreement.

     2.   Amendments to Credit  Agreement.  The Credit Agreement is hereby
          -------------------------------
amended by amending and restating Section 7.10(g) thereof to read in full as
follows:

                    "(g) Purchases by the Company of its common stock (to be
                    retired by the Company) of up to an aggregate consideration
                    of $350,000,000 (cumulatively since the institution of its
                    stock repurchase program), less the consideration paid by
                    the Company for the purchase of its common stock as of the
                    date hereof,"

     3.   Loan Documents.  Except where the context clearly requires otherwise,
          --------------
all references to the Credit Agreement in the Note or any other document
delivered to Bank in connection therewith shall be to the Credit Agreement as
amended by this Agreement.

     4.   Borrower's Ratification. Borrower agrees that it has no defenses or
          -----------------------
set-offs against the Bank, its officers, directors, employees, agents or
attorneys with respect to the Note or the Credit Agreement, all of which are in
full force and effect and shall remain in full force and effect unless and until
modified or amended in writing in accordance with their terms. Borrower hereby
ratifies and confirms its obligations under the Note and the Credit Agreement
and agrees that the execution and the delivery of this Agreement does not in any
way diminish or invalidate any of its obligations thereunder.

                                                                              71
<PAGE>

     5.   Representations and Warranties.  Borrower hereby certifies that:
          ------------------------------

          (a)  except as otherwise previously disclosed to Bank in any manner
whatsoever, the representations and warranties made in the Credit Agreement are
true and correct as of the date hereof.

          (b)  no Event of Default under the Note or the Credit Agreement and no
event which with the passage of time or the giving of notice or both could
become an Event of Default, exists on the date hereof; and

          (c)  this Agreement has been duly authorized, executed and delivered
so as to constitute the legal, valid and binding obligation of Borrower,
enforceable in accordance with its terms.

     All of the above representations and warranties shall survive the
making of this Agreement.

     6.   No Waiver. This Agreement does not and shall not be deemed to
          ---------
constitute a waiver by Bank of any Event of Default under the Note or Credit
Agreement, or of any event which with the passage of time or the giving of
notice or both would constitute an Event of Default, nor does it obligate Bank
to agree to any further modifications of the terms of the Credit Agreement or
constitute a waiver of any of Bank's other rights or remedies.

     7.   Miscellaneous.
          -------------

          (a)  All terms, conditions, provisions and covenants in the Note, the
Credit Agreement, and all other documents delivered to Bank in connection
therewith shall remain unaltered and in full force and effect except as modified
or amended hereby. To the extent that any term or provision of this Agreement is
or may be deemed expressly inconsistent with any term or provision in the Credit
Agreement, the Note or any other document executed in connection therewith, the
terms and provisions hereof shall control.

          (b)  This Agreement shall be governed by and construed according to
the laws of the Commonwealth of Pennsylvania.

          (c)  This Agreement shall inure to the benefit of, and be binding
upon, the parties hereto and their respective successors and assigns and may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

                                                   BORROWER
                                                   --------

[SEAL]                                     SEI INVESTMENTS COMPANY
                                                   (formerly SEI Corporation)


Attest: /s/ Todd Cipperman                 By:     /s/ Kathy Heilig
        --------------------------                 -----------------------------

Title:  Vice President                     Title:  Controller and Treasurer
        --------------------------                 -----------------------------


                                                   BANK
                                                   ----

                                           PNC BANK, NATIONAL ASSOCIATION


                                           By:     /s/ Forrest B. Patterson, Jr.
                                                   -----------------------------

                                           Title:   Vice President
                                                   -----------------------------

                                                                              72

<PAGE>

                                                                      EXHIBIT 21

                        SUBSIDIARIES OF THE REGISTRANT
                        ------------------------------

                                                   JURISDICTION OF ORGANIZATION
            NAME                                        OR INCORPORATION
            ----                                        ----------------

SEI Investments Distribution Company                    Pennsylvania

SEI Investments Management Corporation                  Delaware

SEI, Inc.                                               Canada (Federal)

SEI Capital Limited                                     Canada (Federal)

SEI Investments Developments, Inc.                      Delaware

SEI Investments Mutual Funds Services                   Delaware

SEI Investments Fund Management                         Delaware

SEI Trust Company                                       Pennsylvania

SEI Funds, Inc.                                         Delaware

SEI Investments, Inc.                                   Delaware

SEI Global Investments Corporation                      Delaware

SEI Capital AG                                          Switzerland

SEI Investments Canada Company                          Canada (Federal)

SEI Advanced Capital Management, Inc.                   Delaware

SEI Global Capital Investments, Inc.                    Delaware

SEI Investments Global Management (Cayman) Inc.         Cayman Islands, B. W. I.

SEI Investments Global, Limited                         Ireland

Fund Resources International Limited                    Ireland

SEI Investments Argentina, S. A.                        Argentina

SEI Global Holdings Inc.                                Cayman Islands, B. W. I.

Latinvest Sociedad de Bolsa, S. A.                      Argentina

Quadrum, S. A.                                          Argentina

SEI Investments de Mexico                               Mexico

SEI Asset Korea                                         South Korea

SEI Investments Europe Limited                          United Kingdom

                                                                              74

<PAGE>

                                                                      EXHIBIT 23

                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


To SEI Investments Company:


As independent public accountants, we hereby consent to the incorporation of our
report, included in this Form 10-K, into the Company's previously filed
Registration Statements File No. 2-73997, File No. 2-75629, File No. 2-78133,
File No. 2-80841, File No. 2-89659, File No. 33-19952, File No. 33-24595, File
No. 33-41602, File No. 333-41343, and File No. 333-63709.


                                                             ARTHUR ANDERSEN LLP


Philadelphia, Pa.,
   March 29, 2000

                                                                              76


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (IDENTIFY
SPECIFIC FINANCIAL STATEMENTS) AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CURRENCY>     US
<MULTIPLIER>   1,000

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<EXCHANGE-RATE>                                      1
<CASH>                                          73,206
<SECURITIES>                                     6,704
<RECEIVABLES>                                   35,254
<ALLOWANCES>                                   (1,700)
<INVENTORY>                                          0
<CURRENT-ASSETS>                               146,992
<PP&E>                                         137,055
<DEPRECIATION>                                (71,415)
<TOTAL-ASSETS>                                 253,779
<CURRENT-LIABILITIES>                          138,918
<BONDS>                                         29,000
                                0
                                          0
<COMMON>                                           177
<OTHER-SE>                                      78,825
<TOTAL-LIABILITY-AND-EQUITY>                   253,779
<SALES>                                              0
<TOTAL-REVENUES>                               456,192
<CGS>                                                0
<TOTAL-COSTS>                                  341,400
<OTHER-EXPENSES>                                12,298
<LOSS-PROVISION>                                 (500)
<INTEREST-EXPENSE>                             (2,375)
<INCOME-PRETAX>                                109,169
<INCOME-TAX>                                    42,030
<INCOME-CONTINUING>                             67,139
<DISCONTINUED>                                   1,292
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    68,431
<EPS-BASIC>                                       3.85
<EPS-DILUTED>                                     3.61


</TABLE>

<PAGE>

                                                                      EXHIBIT 99

The undertaking set forth below is filed for purposes of incorporation by
reference into Part II of the registration statements on Form S-8, File No. 2-
73997, File No. 2-75629, File No. 2-78133, File No. 2-80841, File No. 2-89659,
File No. 33-19952, File No. 33-24595, File No. 33-41602, File No. 333-41343, and
File No. 333-63709.

Item 9.  Undertakings.
- ---------------------

       (a)    The undersigned registrant hereby undertakes:

              Insofar as indemnification for liabilities arising under the
              Securities Act of 1933 (the "Securities Act") may be permitted to
              directors, officers or persons controlling the registrant pursuant
              to the provisions described in this registration statement, or
              otherwise, SEI Investments Company (the "Company") has been
              advised that in the opinion of the Commission such indemnification
              is against public policy as expressed in the Securities Act and is
              therefore unenforceable. In the event that a claim for
              indemnification against such liabilities (other than the payment
              by the Company of expenses incurred or paid by a director, officer
              or controlling person of the Company in the successful defense of
              any action, suit or proceeding) is asserted by such director,
              officer or controlling person in connection with the securities
              being registered, the Company 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
              such indemnification by it is against public policy as expressed
              in the Securities Act and will be governed by the final
              adjudication of such issue.


                                                                              78



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