MERRILL LYNCH & CO INC
424B5, 1999-06-24
SECURITY BROKERS, DEALERS & FLOTATION COMPANIES
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                                                    RULE NO. 424(b)(5)
                                                    REGISTRATION NO. 333-68747

P R O S P E C T U S

                           Merrill Lynch & Co., Inc.

                        5 1/4% Stock Return Income Debt
                       Securities SM due August 23, 2000
                            "STRIDES SM Securities"
                Linked to the value of the Nasdaq-100 Index(R)
                         $10 principal amount per unit


         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers  and  sales  related  to  market-making  transactions  in  the  STRIDES
Securities.

The STRIDES Securities:
o   Interest on the STRIDES Securities at a rate of 5 1/4% per year is payable
    on February 23 and August 23 of each year.
o   Senior unsecured debt securities of Merrill Lynch & Co., Inc.
o   Linked to the value of the Nasdaq-100 Index
o   The STRIDES Securities are listed on the American Stock Exchange under the
    symbol "NML".

Payment at Maturity:
o   On the maturity  date,  for each unit of the STRIDES  Securities you own,
    you will receive accrued and unpaid  interest.  In addition,  we will pay
    you the lesser of $12.50 and an amount based on the percentage  change in
    the value of the index, as described in this prospectus.


    Investing in the STRIDES Securities involves risks, including the risk
      that you may receive less than the price you paid for your STRIDES.
          See "Risk Factors" beginning on page 5 of this prospectus.

         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities  commission  has approved or  disapproved  of these  securities  or
determined if this  prospectus or the  accompanying  prospectus is truthful or
complete. Any representation to the contrary is a criminal offense.

         The  sale  price of the  STRIDES  Securities  will be the  prevailing
market price at the time of sale.

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

                              Merrill Lynch & Co.

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



                 The date of this prospectus is June 24, 1999.



"Stock Return Income DEbt Securities" and "STRIDES" are service marks owned by
Merrill Lynch & Co., Inc.  "Nasdaq",  "Nasdaq-100" and "Nasdaq-100  Index" are
trademarks,  trade names or service  marks owned by The Nasdaq  Stock  Market,
Inc.



                               TABLE OF CONTENTS

                                                                          Page

SUMMARY INFORMATION --Q&A...................................................3

RISK FACTORS................................................................5

MERRILL LYNCH & CO., INC....................................................8

RATIO OF EARNINGS TO FIXED CHARGES..........................................9

DESCRIPTION OF THE STRIDES SECURITIES......................................10

THE INDEX..................................................................18

OTHER TERMS................................................................22

WHERE YOU CAN FIND MORE INFORMATION........................................25

INCORPORATION OF INFORMATION WE FILE WITH THE SEC..........................26

PLAN OF DISTRIBUTION.......................................................26

EXPERTS....................................................................27



                         SUMMARY INFORMATION -- Q&A

         This summary includes  questions and answers that highlight  selected
information  from this  prospectus  to help you  understand  the STock  Return
Income DEbt  Securities SM or STRIDES SM Securities  due August 23, 2000.  You
should  carefully  read this  prospectus to fully  understand the terms of the
STRIDES  Securities,  the  Nasdaq-100  Index  as well  as the  tax  and  other
considerations that are important to you in making a decision about whether to
invest in the STRIDES Securities. You should, in particular,  carefully review
the "Risk Factors"  section,  which  highlights  certain  risks,  to determine
whether an investment in the STRIDES Securities is appropriate for you.

What are the STRIDES Securities?

         The STRIDES  Securities are a series of senior debt securities issued
by ML&Co.  and are not  secured by  collateral.  The STRIDES  Securities  rank
equally with all of our other unsecured and unsubordinated  debt. The maturity
date of the  STRIDES  Securities  is August  23,  2000.  We cannot  redeem the
STRIDES Securities at any earlier date.

         Each unit of the STRIDES  Securities  represents $10 principal amount
of the STRIDES  Securities.  You may transfer the STRIDES  Securities  only in
whole  units.  You will not have the right to  receive  physical  certificates
evidencing  your ownership  except under limited  circumstances.  Instead,  we
issued the STRIDES Securities in the form of a global certificate, held by The
Depository  Trust Company,  known as DTC, or its nominee.  Direct and indirect
participants in DTC record beneficial  ownership of the STRIDES  Securities by
individual  investors.  You should  refer to the section  "Description  of the
STRIDES Securities--Depositary" in this prospectus.

When will you receive interest?

         You will receive  interest  payments on the STRIDES  Securities  at a
rate of 5 1/4% per year of the  principal  amount of each unit, on February 23
and August 23 of each year, beginning August 23, 1999.

What will you receive on the maturity date?

         On the maturity  date, for each unit of the STRIDES  Securities  that
you own, in addition to accrued and unpaid interest, we will pay you an amount
equal to the "Redemption Amount" which will equal the lesser of:

     o   $12.50 (the "Capped Value"); and

                Ending Value
     o   $10x  --------------
                Starting Value

         "Starting Value" equals 1,891.37.

         "Ending  Value"  means the  average of the values of the index at the
close of the market on five business days shortly before the maturity date. We
may  calculate  the Ending  Value by  reference  to fewer than five or even by
reference to a single day's  closing  value if, during the period prior to the
maturity date,  there is a disruption in the trading of the stocks included in
the index or futures or options relating to the index.

         You should  understand  that the  opportunity  to  participate in the
possible  increases  in the value of the index  through an  investment  in the
STRIDES  Securities  is limited  because  the amount  that you  receive on the
maturity  date will  never  exceed  the  Capped  Value,  which  represents  an
appreciation of 25% over the initial price of the STRIDES Securities. However,
in the event that the value of the Index declines over the term of the STRIDES
Securities,  you will  realize  the  entire  decline  in value of the  STRIDES
Securities  and may  therefore  lose a part of your initial  investment in the
STRIDES  Securities.  For more  information  about risks  associated  with the
STRIDES  Securities,  please see the section  entitled  "Risk Factors" in this
prospectus.

         For more specific  information  about the determination of the Ending
Value and the Redemption Amount, please see the sections entitled "Description
of the STRIDES  Securities--Payment at Maturity" and "--Examples of Redemption
Amount Calculations" in this prospectus.

Who publishes the index and what does the index measure?

         The Nasdaq-100 Index is a modified  capitalization-weighted  index of
100 of the largest and most actively traded of non-financial  companies listed
on the Nasdaq  National  Market tier of the Nasdaq Stock Market.  The index is
currently calculated and published by The Nasdaq Stock Market, Inc.

         Please note that an  investment  in the STRIDES  Securities  does not
entitle you to any  ownership  interest  in any of the stocks  included in the
index.

How has the index performed historically?

         Tables  showing the closing  value of the index on the last  business
day of each month from January 1989 through  February 1999 are provided in the
section  entitled "The  Index--Historical  Data" in this  prospectus.  We have
provided this historical  information to help you evaluate the behavior of the
index in various economic environments; however, past performance of the index
is not necessarily indicative of how the index will perform in the future.

What about taxes?

         The U.S.  Federal  income tax  consequences  of an  investment in the
STRIDES  Securities  are complex and  uncertain.  Pursuant to the terms of the
STRIDES Securities,  ML&Co. and you agree, in the absence of an administrative
or judicial ruling to the contrary, to characterize a STRIDES Security for all
tax purposes as an investment  unit  consisting of a debt instrument of ML&Co.
and a forward  contract to acquire cash  equivalent to the Redemption  Amount.
Under this characterization of the STRIDES Securities, for U.S. Federal income
tax purposes,  you will include payments of interest on the STRIDES Securities
in income in accordance with your regular method of tax accounting. You should
be required to  recognize  gain or loss to the extent that you receive cash on
the maturity date.

Are the STRIDES Securities listed on a stock exchange?

         The STRIDES  Securities  are listed on the  American  Stock  Exchange
under the trading symbol "NML".

What is the role of MLPF&S?

         MLPF&S, our subsidiary, was the underwriter for the offering and sale
of the STRIDES Securities.

         MLPF&S  also is our agent for  purposes of  calculating,  among other
things,  the Ending Value and the Redemption  Amount.  In some  circumstances,
these duties could result in a conflict of interest  between MLPF&S' status as
our subsidiary and its responsibilities as calculation agent.

Who is ML&Co.?

         Merrill  Lynch  &  Co.,  Inc.  is  a  holding  company  with  various
subsidiary  and  affiliated  companies  that  provide  investment,  financing,
insurance  and  related  services on a global  basis.  For  information  about
ML&Co., please see the section "Merrill Lynch & Co., Inc." in this prospectus.
You should also read the other documents we have filed with the SEC, which you
can find by  referring  to the  section  entitled  "Where  You Can  Find  More
Information" in this prospectus.

Are there any risks associated with an investment in the STRIDES Securities?

         Yes, an  investment  in the STRIDES  Securities is subject to certain
risks. Please refer to the section entitled "Risk Factors" in this prospectus.



                                 RISK FACTORS

         Your  investment in the STRIDES  Securities  will involve risks.  You
should consider  carefully the following  discussion of risks before investing
in the  STRIDES  Securities.  In  addition,  you  should  reach an  investment
decision with regard to the STRIDES Securities only after consulting with your
legal  and  tax  advisers  and  considering  the  suitability  of the  STRIDES
Securities in the light of your particular circumstances.

The STRIDES Securities are unlike typical debt or equity securities

         The  STRIDES   Securities   combine   features  of  equity  and  debt
instruments. For example, like an equity instrument, your return will be based
on the  appreciation  of the stocks  included in the index as reflected in the
closing value of the index.  However,  as a holder of the STRIDES  Securities,
you will not be entitled to receive  dividends  that would be payable on these
underlying  stocks  if you had  made a  direct  investment  in the  underlying
stocks. In addition, like a debt instrument, you will receive a fixed interest
payment on your STRIDES Securities on each interest payment date. However, the
terms of the  STRIDES  Securities  differ  from the  terms  of  ordinary  debt
securities  in that the  amount  payable on the  maturity  date is not a fixed
amount, but is based on the closing value of the index, limited to the maximum
amount of $12.50.

Your investment may result in a loss

         The  STRIDES  Securities  are not  principal-protected.  Because  the
closing  value of the index is subject to market  fluctuations,  the amount of
cash paid to you on the maturity date,  determined as described  below, may be
more or less than the  principal  amount of your  STRIDES  Securities.  If the
average of the values of the index at the close of the market on five business
day shortly before the maturity date is less than 1,891.37, the amount we will
pay you at maturity  will be less than the initial issue price of each STRIDES
Security,  in which case your investment in the STRIDES  Securities may result
in a loss to you.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

         The  interest  payments  and the  amount we pay you at  maturity  may
together  be less than the return you could  earn on other  investments.  Your
yield  may be less than the yield  you  would  earn if you  bought a  standard
senior  non-callable  debt  security  of  Merrill  Lynch & Co.  with  the same
maturity date.  Your investment may not reflect the full  opportunity  cost to
you when you take into account factors that affect the time value of money.

Your return is capped and will not reflect the return of owning the stocks
underlying the index

         You should  understand  that the  opportunity  to  participate in the
possible  increases  in the value of the index  through an  investment  in the
STRIDES  Securities  is limited  because  the amount  that you  receive on the
maturity date will never exceed $12.50,  which  represents an  appreciation of
25% over the initial issue price of the STRIDES  Securities.  However,  in the
event  that  the  value of the  index  declines  over the term of the  STRIDES
Securities,  you will  realize  the  entire  decline  in value of the  STRIDES
Securities,  and may lose a part of your investment in the STRIDES Securities.
There is no assurance  that the amount that you receive on the  maturity  date
will be equal  to or  greater  than the  initial  issue  price of the  STRIDES
Securities.  Accordingly,  the value of the STRIDES Securities may decline and
that decline could be substantial.

         In  addition,  your  return  will not  reflect  the  return you would
realize if you actually owned the stocks underlying the index and received the
dividends paid on those stocks because the index is calculated by reference to
the prices of the  underlying  stocks without  taking into  consideration  the
value of dividends paid on these stocks.

There may be an uncertain trading market for the STRIDES Securities in the
future

         Although  the  STRIDES  Securities  are  listed on the AMEX under the
symbol "NML",  you cannot assume that a trading  market will continue to exist
for the STRIDES  Securities.  If a trading  market in the  STRIDES  Securities
continues  to exist,  you cannot  assume that there will be  liquidity  in the
trading  market.  The continued  existence of a trading market for the STRIDES
Securities  will  depend  on  our  financial  performance  and  other  factors
including the appreciation, if any, of the value of the index.

Many factors affect the trading value of the STRIDES Securities; these factors
interrelate  in  complex  ways and the  effect of any one factor may offset or
magnify the effect of another factor

         The  trading  value of the  STRIDES  Securities  will be  affected by
factors  that  interrelate  in  complex  ways.  It is  important  for  you  to
understand  that the  effect of one factor  may  offset  the  increase  in the
trading value of the STRIDES  Securities caused by another factor and that the
effect of one factor may  magnify the  decrease  in the  trading  value of the
STRIDES Securities caused by another factor. For example,  an increase in U.S.
interest  rates may offset some or all of any increase in the trading value of
the STRIDES Securities  attributable to another factor, such as an increase in
the value of the index. The following  paragraphs describe the expected effect
on the market  value of the  STRIDES  Securities  given a change in a specific
factor, assuming all other conditions remain constant.

         The value of the index is expected to affect the trading value of the
STRIDES  Securities.  The market value of the STRIDES  Securities  will depend
substantially  on the  amount by which the value of the index  exceeds or does
not exceed  1,891.37.  In general,  the value of the STRIDES  Securities  will
decrease  as the value of the  index  decreases  and the value of the  STRIDES
Securities  will  increase  as the value of the index  increases,  subject  to
maximum  payment at  maturity  of $12.50.  However,  as the value of the index
increases or decreases, the value of the STRIDES Securities is not expected to
increase or decrease at the same rate as the change in value of the index. The
value of the STRIDES  Securities  on the maturity  date cannot be greater than
$12.50, and therefore,  the STRIDES Securities will generally not trade in the
secondary  market above that  amount.  Additionally,  political,  economic and
other  developments  that can affect the capital markets  generally,  and over
which we have no control,  that affect the value of the index will also affect
the value of the STRIDES Securities.

         Changes in the levels of U.S.  interest  rates are expected to affect
the trading value of the STRIDES Securities. In general, we anticipate that if
U.S. interest rates increase, the trading value of the STRIDES Securities will
decrease,  and conversely,  if U.S. interest rates decrease, the trading value
of the STRIDES Securities will increase.  Generally,  fluctuations in interest
rates  will  affect the U.S.  economy  and,  in turn,  the value of the index.
Rising  interest rates may lower the value of the index and, as a result,  the
value of the STRIDES Securities. Falling interest rates may increase the value
of the  index  and,  as a  result,  may  increase  the  value  of the  STRIDES
Securities.

         Changes in the  volatility  of the index are  expected  to affect the
trading  value of the  STRIDES  Securities.  Volatility  is the  term  used to
describe the size and  frequency  of market  fluctuations.  Generally,  if the
volatility  of the index  increases,  we expect that the trading  value of the
STRIDES Securities will decrease and if the volatility of the index decreases,
we expect that the trading value of the STRIDES Securities will increase.

         As  the  time  remaining  to  maturity  of  the  STRIDES   Securities
decreases,  the "time premium"  associated  with the STRIDES  Securities  will
decrease. We believe that before the maturity date the STRIDES Securities will
trade at a value  above or below that  which  would be  expected  based on the
value of the index.  Generally,  as the time remaining to maturity  decreases,
the value of the STRIDES  Securities  will  approach  the amount that would be
payable at maturity based on the then current value of the index. As a result,
as  the  time  remaining  to  maturity  decreases,  any  discount  or  premium
attributed  to the trading  value of the  STRIDES  Securities  will  diminish,
increasing  or  decreasing  the trading  value of the STRIDES  Securities,  as
applicable.

         Changes in  dividend  yields of the stocks  included in the index are
expected to affect the trading value of the STRIDES Securities.  Generally, if
the dividend  yield on the  underlying  stocks  increases,  we expect that the
value of the STRIDES Securities will decrease, and conversely, if the dividend
yield on the  underlying  stocks  decreases,  we expect  that the value of the
STRIDES Securities will increase.

         Changes in our credit  ratings  may affect the  trading  value of the
STRIDES Securities. Our credit ratings are an assessment of our ability to pay
our  obligations.  Consequently,  real or  anticipated  changes  in our credit
ratings  may affect the  trading  value of the  STRIDES  Securities.  However,
because your return on your STRIDES  Securities  is dependent  upon factors in
addition to our ability to pay our obligations  under the STRIDES  Securities,
including the  percentage  increase in the value of the index at maturity,  an
improvement in our credit ratings will not reduce  investment risks related to
the STRIDES Securities.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading  value of the  STRIDES  Securities  of a
given  change in most of the  factors  listed  above will be less if it occurs
later in the term of the STRIDES  Securities  than if it occurs earlier in the
term of the STRIDES Securities.  However, so long as the value of the Index is
less than 25% above  1,891.37,  we expect that the effect on the trading value
of the STRIDES  Securities of a given increase or decrease in the value of the
index will be greater if it occurs later in the term of the STRIDES Securities
than if it occurs earlier in the term of the STRIDES Securities.

Potential conflicts

         The  calculation  agent  for  the  STRIDES  Securities  is one of our
subsidiaries.  In some circumstances,  MLPF&S's role as our subsidiary and its
responsibilities  as calculation  agent for the STRIDES  Securities could give
rise to conflicts of interests  between the calculation  agent and the holders
of the STRIDES  Securities.  These  conflicts  could occur,  for instance,  in
connection with its  determination as to whether a market disruption event has
occurred.  MLPF&S is required to carry out its duties as calculation  agent in
good faith and using its  reasonable  judgment.  However,  you should be aware
that because we control MLPF&S, potential conflicts of interest could arise.

         We have entered into  arrangements  with one of our  subsidiaries  to
hedge the market risks  associated  with our obligation in connection with the
STRIDES  Securities.  This  subsidiary  expects to make a profit in connection
with these arrangements. We did not seek competitive bids for the arrangements
from unaffiliated parties.


                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management,  provides investment,  financing, advisory, insurance, and related
products on a global basis, including:

         o    securities brokerage, trading and underwriting;

         o    investment banking, strategic services, including mergers and
               acquisitions and other corporate finance advisory activities;

         o    asset management and other investment advisory and recordkeeping
               services;

         o    trading and brokerage of swaps, options, forwards, futures and
               other derivatives;

         o    securities clearance services;

         o    equity, debt and economic research;

         o    banking, trust and lending services, including mortgage lending
               and related services; and

         o    insurance sales and underwriting services.

We provide these  products and services to a wide array of clients,  including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRIDES Securities described in this prospectus.






















<PAGE>
                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:

<TABLE>
<CAPTION>
                                                                                                    For the Three
                                                    Year Ended Last Friday in December              Months Ended
                                            1994        1995        1996       1997       1998     March 26, 1999
                                            ----        ----        ----       ----       ----     --------------
<S>                                         <C>         <C>         <C>        <C>        <C>      <C>

Ratio of earnings to fixed charges(a)....    1.2         1.2         1.2        1.2        1.1           1.3
</TABLE>
- ----------
(a)      The effect of combining Midland Walwyn did not change the ratios
         reported for the fiscal years 1994 through 1997.

         For the  purpose  of  calculating  the  ratio  of  earnings  to fixed
charges,  "earnings"  consist of earnings from  continuing  operations  before
income taxes and fixed charges,  excluding  capitalized interest and preferred
security  dividend  requirements of  subsidiaries.  "Fixed charges" consist of
interest costs, the interest factor in rentals,  amortization of debt issuance
costs,   preferred  security  dividend   requirements  of  subsidiaries,   and
capitalized interest.


<PAGE>

                     DESCRIPTION OF THE STRIDES SECURITIES

         On February 23, 1999, ML&Co.  issued $18,000,000  aggregate principal
amount of STRIDES  Securities due August 23, 2000. The STRIDES Securities were
issued as a series of senior debt securities  under the 1983 Indenture,  which
is more fully described in this prospectus.

         Upon the  occurrence  of an  Event of  Default  with  respect  to the
STRIDES Securities, beneficial owners of the STRIDES Securities may accelerate
the maturity of the STRIDES Securities, as described under "Description of the
STRIDES Securities--Events of Default and Acceleration" in this prospectus.

         The STRIDES Securities were issued in denominations of whole units.

         The STRIDES Securities do not have the benefit of any sinking fund.

Interest

         The STRIDES Securities bear interest at a rate of 5 1/4% per annum of
the  principal  amount of each unit from  February 23, 1999,  or from the most
recent interest payment date for which interest has been paid or provided for,
until the maturity date. Interest on the STRIDES Securities is payable in cash
semi-annually in arrears on February 23 and August 23 of each year, commencing
August 23,  1999,  to the persons in whose names the  STRIDES  Securities  are
registered at the close of business on the  immediately  preceding  February 8
and August 8,  respectively,  whether or not a Business  Day.  Interest on the
STRIDES Securities is computed on the basis of a 360-day year of twelve 30-day
months. If an interest payment date falls on a day that is not a Business Day,
the interest  payment to be made on the interest  payment date will be made on
the next succeeding  Business Day with the same force and effect as if made on
the interest payment date, and no additional  interest will accrue as a result
of a delayed payment.

Payment at Maturity

         The  maturity  date of the STRIDES  Securities  will be on August 23,
2000. On the maturity date, the beneficial owner of each STRIDES Security will
receive,  in  addition to accrued  and unpaid  interest,  for each unit of the
STRIDES Securities then held, the Redemption Amount in cash.

         The "Redemption  Amount" will be determined by the calculation  agent
and for each unit will equal the lesser of:


         o   $12.50 (the "Capped Value"); and

                     Ending Value
         o   $10x   --------------
                    Starting Value

        The "Starting Value" equals 1,891.37.


         The Ending Value will be determined by the calculation agent and will
equal the average or arithmetic mean of the Closing Values,  as defined below,
of the index  determined on each of the first five Calculation Days during the
Calculation  Period.  If there are fewer  than  five  Calculation  Days in the
Calculation Period, then the Closing Values used to determine the Ending Value
will equal the average or arithmetic  mean of the Closing  Values of the index
on those  Calculation Days, and if there is only one Calculation Day, then the
Ending  Value  will  be  equal  to the  Closing  Value  of the  index  on that
Calculation Day. If no Calculation  Days occur during the Calculation  Period,
then  the  Ending  Value  will be  equal to the  Closing  Value  of the  index
determined on the last scheduled  Calculation Day in the  Calculation  Period,
regardless of the occurrence of a Market Disruption Event on that day.

         The  "Calculation  Period"  means the period from and  including  the
seventh scheduled  Calculation Day prior to the maturity date to and including
the second scheduled Calculation Day prior to the maturity date.

         "Calculation  Day"  means  any Index  Business  Day on which a Market
Disruption Event has not occurred.

         "Index  Business Day" means any day on which the Nasdaq Stock Market,
the New York Stock Exchange and the AMEX are open for trading and the Index or
any Successor Index, as defined below, is calculated and published.

         "Market  Disruption  Event" has the  meaning  defined in the  section
entitled "--Adjustments to the Index; Market Disruption Events".

         "Closing  Value" means the value of the Index or any Successor  Index
at the close of trading on any Index Business Day.

         "Business Day" means each Monday,  Tuesday,  Wednesday,  Thursday and
Friday that is not a day on which banking institutions in The City of New York
are authorized or obligated by law to close and that is an Index Business Day.

         All determinations made by the calculation agent shall be at its sole
discretion and, absent a determination by the calculation  agent of a manifest
error,  shall be  conclusive  for all purposes  and binding on ML&Co.  and the
beneficial owners of the STRIDES Securities.



Examples of Redemption Amount Calculations

         Set forth below are three examples of Redemption Amount calculations:

Example One--Ending Value is 30% less than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 1,323.96

                                                           1,323.96
        Redemption Amount (per unit)           = $10.00 x ---------- = $7.00
                                                           1,891.37
Redemption Amount (per unit) = $7.00

Example Two--Ending Value is 10% greater than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 2,080.51

                                                           2,080.51
        Redemption Amount (per unit)           = $10.00 x ---------- = $11.00
                                                           1,891.37

Redemption Amount (per unit) = $11.00

Example Three--Ending Value is 30% greater than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 2,458.78

         Redemption Amount
         (per unit)
<TABLE>
<S>                                           <C>
                                                          2,458.78
                                               = $10.00 X -------- = $12.50  (Redemption Amount cannot
                                                          1,891.37           be greater than the Capped
                                                                             Value)
</TABLE>

Redemption Amount (per unit) = $12.50



Hypothetical Returns

    The following table illustrates, for a range of hypothetical Ending Values,

    o    the percentage change over the Starting Value;

    o    the Redemption Amount payable per unit;

    o    the total rate of return to beneficial owners of the STRIDES
         Securities;

    o    the pretax annualized rate of return to beneficial owners of STRIDES
         Securities; and

    o    the pretax  annualized rate of return of the Underlying  Stocks,
         which includes an assumed aggregate  dividend yield of 0.12% per
         annum, as more fully described below.

<TABLE>
<CAPTION>
                                                                                                        Pretax
                                           Redemption        Total Rate of         Pretax             Annualized
                     Percentage Change       Amount            Return of         Annualized         Rate of Return
    Hypothetical         Over the            Payable            STRIDES            Rate of         of the Underlying
    Ending Value      Starting Value        per unit         Securities(1)      Return(2)(3)         Stocks(3)(4)
    ------------     -----------------     ----------        -------------      ------------       ------------------
    <S>              <C>                   <C>               <C>                <C>                <C>

         945.69           -50.00%            $ 5.00              -42.13%          -34.57%               -41.16%
        1,040.25           -45.00%            $ 5.50              -37.13%          -29.68%               -36.03%
        1,134.82           -40.00%            $ 6.00              -32.13%          -25.05%               -31.21%
        1,229.39           -35.00%            $ 6.50              -27.13%          -20.67%               -26.65%
        1,323.96           -30.00%            $ 7.00              -22.13%          -16.49%               -22.31%
        1,418.53           -25.00%            $ 7.50              -17.13%          -12.50%               -18.18%
        1,513.10           -20.00%            $ 8.00              -12.13%           -8.68%               -14.22%
        1,607.66           -15.00%            $ 8.50               -7.13%           -5.00%               -10.43%
        1,702.23           -10.00%            $ 9.00               -2.13%           -1.47%                -6.79%
        1,796.80            -5.00%            $ 9.50                2.88%            1.95%                -3.27%
        1,891.37(5)          0.00%           $ 10.00                7.88%            5.25%                 0.12%
        1,985.94             5.00%           $ 10.50               12.88%            8.45%                 3.40%
        2,080.51            10.00%           $ 11.00               17.88%           11.55%                 6.58%
        2,175.08            15.00%           $ 11.50               22.88%           14.56%                 9.66%
        2,269.64            20.00%           $ 12.00               27.88%           17.48%                12.66%
        2,364.21            25.00%           $ 12.50               32.88%           20.33%                15.57%
        2,458.78            30.00%           $ 12.50               32.88%           20.33%                18.41%
        2,553.35            35.00%           $ 12.50               32.88%           20.33%                21.18%
        2,647.92            40.00%           $ 12.50               32.88%           20.33%                23.87%
        2,742.49            45.00%           $ 12.50               32.88%           20.33%                26.51%
        2,837.06            50.00%           $ 12.50               32.88%           20.33%                29.08%

</TABLE>

(1)    The rates of return  specified  in this column  assume a coupon yield
       of 5 1/4% per annum.
(2)    The annualized  rates of return  specified in this column
       assume a constant coupon yield of 5 1/4% per annum
       paid semi-annually and applied to the principal amount of each STRIDES
       Security.
(3)    The annualized rates of return specified in these columns are calculated
       on a semi-annual bond equivalent basis.
(4)    The rates of return specified in this column assume:
          (a)    a constant  dividend  yield of 0.12% per annum, paid quarterly
                 from  the  date  of  initial  delivery  of STRIDES Securities,
                 applied to the value of the Index at the end of each quarter
                 assuming  that  value increases  or  decreases  linearly  from
                 the Starting Value to the applicable hypothetical Ending Value;
          (b)    no transaction fees or expenses;
          (c)    an investment term equal to the term of the STRIDES Securities;
                 and (d) a final Index value equal to the hypothetical Ending
                 Value.
(5) This value is the Starting Value.

         The above figures are for purposes of  illustration  only. The actual
Redemption  Amount  received by investors and the  resulting  total and pretax
annualized  rate of return will depend  entirely  on the actual  Ending  Value
determined by the calculation agent as provided in this prospectus.

Adjustments to the Index; Market Disruption Events

         If at any time the method of calculating  the Index, or its value, is
changed in any material respect,  or if the Index is in any other way modified
so that the Index does not, in the opinion of the  calculation  agent,  fairly
represent  the value of the Index had the  changes or  modifications  not been
made,  then,  from and after that time, the  calculation  agent shall,  at the
close of business in New York,  New York,  on each date that the Closing Value
is to be calculated,  make any  adjustments  as, in the good faith judgment of
the calculation agent, may be necessary in order to arrive at a calculation of
a value  of a  stock  index  comparable  to the  Index  as if any  changes  or
modifications  had not  been  made,  and  calculate  the  Closing  Value  with
reference to the Index, as adjusted. Accordingly, if the method of calculating
the  Index is  modified  so that the  value of the  Index is a  fraction  or a
multiple of what it would have been if it had not been modified,  for example,
due to a split in the Index, then the calculation agent shall adjust the Index
in order to arrive at a value of the Index as if it had not been modified, for
example, as if the split had not occurred.

         "Market  Disruption  Event" means either of the following  events; as
determined by the calculation agent:

         (a)      the  suspension  or material  limitation on trading for more
                  than two hours of  trading,  or  during  the  one-half  hour
                  period  preceding  the close of  trading  on the  applicable
                  exchange,  in each case,  in 20% or more of the stocks which
                  then comprise the Index; or

         (b)      the  suspension or material  limitation on trading,  in each
                  case, for more than two hours of trading,  whether by reason
                  of movements in price otherwise  exceeding  levels permitted
                  by the relevant exchange or otherwise, in

                  (1)  futures contracts related to the Index, or options on
                       futures contracts, which are traded on any major U.S.
                       exchange or

                  (2) option  contracts  related to the Index which are traded
                      on any major U.S. exchange.

         For the  purposes  of clause (a) above,  any  limitations  on trading
during significant market fluctuations under New York Stock Exchange Rule 80A,
or any applicable rule or regulation enacted or promulgated by the NYSE or any
other self  regulatory  organization or the SEC of similar scope as determined
by the calculation agent, will be considered "material".

         For the purposes of this  definition,  a limitation on the hours in a
trading  day and/or  number of days of trading  will not  constitute  a Market
Disruption  Event  if it  results  from an  announced  change  in the  regular
business hours of the relevant exchange.

Discontinuance of the Index

         If Nasdaq discontinues publication of the Index and Nasdaq or another
entity  publishes a successor or substitute  index that the calculation  agent
determines,  in its sole discretion,  to be comparable to the Index (any index
so  selected  being  referred  to as a  "Successor  Index"),  then,  upon  the
calculation  agent's  notification  of the  determination  to the  Trustee and
ML&Co.,   the  calculation  agent  will  substitute  the  Successor  Index  as
calculated by Nasdaq or any other entity for the Index.  Upon any selection by
the calculation  agent of a Successor  Index,  ML&Co.  will cause notice to be
given to holders of the STRIDES Securities.

         If Nasdaq discontinues publication of the Index and a Successor Index
is not selected by the calculation  agent or is no longer  published on any of
the  Calculation  Days,  the  value to be  substituted  for the  Index for any
Calculation Day used to calculate the Redemption  Amount at maturity will be a
value computed by the calculation agent for each Calculation Day in accordance
with  the   procedures   last  used  to  calculate  the  Index  prior  to  any
discontinuance.  If a Successor  Index is selected  or the  calculation  agent
calculates  a value as a  substitute  for the Index as  described  below,  the
Successor  Index or value shall be substituted for the Index for all purposes,
including  for  purposes  of  determining  whether a Market  Disruption  Event
exists.  If the calculation  agent  calculates a value as a substitute for the
Index,  "Calculation Day" shall mean any day on which the calculation agent is
able to calculate the value.

         If Nasdaq  discontinues  publication of the Index prior to the period
during which the  Redemption  Amount is to be determined  and the  calculation
agent  determines  that no Successor  Index is available at that time, then on
each Index Business Day until the earlier to occur of (a) the determination of
the  Ending  Value and (b) a  determination  by the  calculation  agent that a
Successor Index is available,  the calculation  agent will determine the value
that would be used in  computing  the  Redemption  Amount as  described in the
preceding  paragraph as if that day were a  Calculation  Day. The  calculation
agent will cause notice of each value to be published not less often than once
each  month in The  Wall  Street  Journal  or  another  newspaper  of  general
circulation, and arrange for information with respect to the values to be made
available by telephone.  Discontinuance  of the  publication  of the Index may
adversely affect trading in the STRIDES Securities.

Events of Default and Acceleration

         In case an Event of Default  with  respect to any STRIDES  Securities
has occurred and is continuing,  the amount payable to a beneficial owner of a
STRIDES  Security upon any acceleration  permitted by the STRIDES  Securities,
with respect to each $10 unit of the STRIDES Securities,  will be equal to the
principal  amount  and any  accrued  interest  due  thereon.  If a  bankruptcy
proceeding is commenced in respect of the ML&Co.,  the claim of the beneficial
owner of a STRIDES Security may be limited,  under Section  502(b)(2) of Title
11 of the United States Code, to the principal  amount of the STRIDES Security
plus an additional amount of contingent interest calculated as though the date
of the  commencement  of the proceeding  were the maturity date of the STRIDES
Securities.

         In case of default in payment of the STRIDES  Securities,  whether at
any interest payment date, the maturity date or upon  acceleration),  from and
after that date the  STRIDES  Securities  shall bear  interest,  payable  upon
demand of the beneficial  owners of the STRIDES  Securities,  at the rate of 5
1/4% per annum,  to the extent that payment of any  interest  shall be legally
enforceable,  on the unpaid  amount due and payable on that date in accordance
with the terms of the STRIDES  Securities  to the date  payment of that amount
has been made or duly provided for.

Global Securities

         Description of the Global Securities

         Beneficial owners of the STRIDES  Securities may not receive physical
delivery  of the  STRIDES  Securities  nor may  they be  entitled  to have the
STRIDES Securities registered in their names. The STRIDES Securities currently
are represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository  Trust Company or
DTC (DTC, together with any successor,  being a "depositary"),  as depositary,
registered in the name of Cede & Co., DTC's  partnership  nominee.  Unless and
until it is exchanged in whole or in part for STRIDES Securities in definitive
form,  no  global  security  may  be  transferred  except  as a  whole  by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the  depositary or another  nominee of the  depositary or by the depositary or
any nominee to a successor of the depositary or a nominee of that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRIDES Securities represented by a global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial owners of the STRIDES  Securities  represented by a global security
will not be entitled to have the STRIDES Securities  represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the STRIDES Securities in definitive form and will not be
considered  the  owners or holders  under the 1983  Indenture,  including  for
purposes of receiving any reports delivered by ML&Co. or the Trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant  of DTC on the procedures of the  participant  through which the
person owns its  interest,  to exercise  any rights of a holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take any action,  and the participants  would authorize  beneficial  owners
owning through those  participants  to give or take action or would  otherwise
act upon the  instructions  of  beneficial  owners.  Conveyance of notices and
other  communications  by DTC to  participants,  by  participants  to indirect
participants  and by  participants  and indirect  participants  to  beneficial
owners will be governed by arrangements  among them,  subject to any statutory
or regulatory requirements as may be in effect from time to time.

         DTC Procedures

         The following is based on information furnished by DTC:

         DTC is the  securities  depositary  for the STRIDES  Securities.  The
STRIDES  Securities were issued as fully registered  securities  registered in
the  name  of  Cede & Co.,  DTC's  partnership  nominee.  One  or  more  fully
registered  global  securities  were issued for the STRIDES  Securities in the
aggregate principal amount of the STRIDES Securities,  and were deposited with
DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency"  registered  under to the  provisions of Section 17A of the Securities
and  Exchange  Act  of  1934,  as  amended.  DTC  holds  securities  that  its
participants  deposit  with DTC. DTC also  facilitates  the  settlement  among
participants  of securities  transactions,  such as transfers and pledges,  in
deposited  securities  through electronic  computerized  book-entry changes in
participants' accounts,  thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and  dealers,   banks,  trust  companies,   clearing  corporations  and  other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to DTC's  system is also  available to others such as  securities  brokers and
dealers,  banks and trust companies that clear through or maintain a custodial
relationship  with a direct  participant,  either directly or indirectly.  The
rules applicable to DTC and its participants are on file with the SEC.

         Purchases of STRIDES Securities under DTC's system must be made by or
through  direct  participants,  which will  receive a credit  for the  STRIDES
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from the direct participants or indirect participants through which
the  beneficial  owner  entered into the  transaction.  Transfers of ownership
interests in the STRIDES  Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate subsequent transfers,  all STRIDES Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of STRIDES  Securities with DTC and their registration in the name
of Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge
of the actual  beneficial  owners of the  STRIDES  Securities;  DTC's  records
reflect only the  identity of the direct  participants  to whose  accounts the
STRIDES  Securities  are  credited,  which  may or may  not be the  beneficial
owners.  The participants will remain responsible for keeping account of their
holdings on behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to direct
participants,  by direct participants to indirect participants,  and by direct
and  indirect   participants   to  beneficial   owners  will  be  governed  by
arrangements among them,  subject to any statutory or regulatory  requirements
as may be in effect from time to time.

         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
STRIDES Securities.  Under its usual procedures, DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
STRIDES  Securities  are credited on the record date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest, if any, payments on the
STRIDES  Securities will be made in immediately  available funds to DTC. DTC's
practice is to credit direct participants'  accounts on the applicable payment
date in accordance with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe that it will not receive  payment on
that date.  Payments by participants to beneficial  owners will be governed by
standing instructions and customary practices,  as is the case with securities
held for the  accounts of customers  in bearer form or  registered  in "street
name", and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium, if any, and/or
interest,  if any,  to DTC is the  responsibility  of ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

         Exchange for Certificated Securities
         If:

         o   the depositary is at any time unwilling or unable to continue as
             depositary and a successor depositary is not appointed by ML&Co.
             within 60 days,

         o   ML&Co. executes and delivers to the Trustee a company order to the
             effect that the global securities shall be exchangeable, or

         o   an Event of Default under the 1983 Indenture has occurred and is
             continuing with respect to the STRIDES Securities,

the  global  securities  will  be  exchangeable  for  STRIDES   Securities  in
definitive form of like tenor and of an equal aggregate  principal  amount, in
denominations  of $10 and integral  multiples of $10. The  definitive  STRIDES
Securities  will be  registered in the name or names as the  depositary  shall
instruct  the  trustee.  It is expected  that  instructions  may be based upon
directions  received  by the  depositary  from  participants  with  respect to
ownership of beneficial interests in the global securities.

         In addition,  ML&Co.  may decide to discontinue  use of the system of
book-entry transfers through the depositary. In that event, STRIDES Securities
in definitive form will be printed and delivered.

         The information in this section concerning DTC and DTC's system has
been obtained from sources that ML&Co. believes to be reliable, but ML&Co.takes
no responsibility for its accuracy.

Same-Day Settlement and Payment

         ML&CO.,  will make all  payments of  principal  and the  Supplemental
Redemption  Amount,  if any,  in  immediately  available  funds so long as the
STRIDES Securities are maintained in book-entry form.


                                   THE INDEX

         The Nasdaq-100 Index(R) is a modified  capitalization-weighted  index
of 100 of the  largest  and  most  actively  traded  stocks  of  non-financial
companies  listed on the  Nasdaq  National  Market  tier of the  Nasdaq  Stock
Market.  The Index was first published in January 1985 and includes  companies
across a variety of major industry groups.  Current information  regarding
the market  value of the Index is  available  from  Nasdaq as well as numerous
market information services. The Index is determined, comprised and calculated
by Nasdaq without regard to the STRIDES Securities.

         The Index share  weights of the component  securities,  or Underlying
Stocks,  of the Index at any time are based upon the total shares  outstanding
in each of the 100 securities in the Index and are  additionally  subject,  in
some cases,  to  rebalancing  to ensure  that the  relative  weighting  of the
Underlying Stocks continues to meet minimum pre-established requirements for a
diversified portfolio.  Accordingly,  each Underlying Stock's influence on the
value of the Index is  directly  proportional  to the value of its Index share
weight.  At any moment in time,  the value of the Index  equals the  aggregate
value of the then current  Index share  weights of each of the  component  100
Underlying Stocks multiplied by each security's  respective last sale price on
the Nasdaq Stock Market, and divided by a scaling factor (the "divisor") which
becomes the basis for the reported Index value. The divisor serves the purpose
of scaling the aggregate value,  otherwise in the trillions,  to a lower order
of magnitude which is more desirable for Index reporting purposes.

         After the close of trading on  December  18,  1998,  the Index  share
weights of the component securities in the Index were rebalanced in accordance
with the modified  capitalization  weighted  methodology  implemented  on that
date. Hence, the performance of the Index after December 18, 1998 will reflect
the  performance  of the  securities  in the Index as calculated in accordance
with the revised Index methodology.

Computation of the Index

Underlying Stock Eligibility Criteria and Annual Ranking Review

         To be eligible for inclusion in the Index,  a security must be traded
on the Nasdaq  National  Market tier of the Nasdaq  Stock  Market and meet the
following criteria:

         (1)      the security must be of a non-financial company;

         (2)      only one class of security per issuer is allowed;

         (3)      the security may not be issued by an issuer currently in
                  bankruptcy proceedings;

         (4)      the security must have average daily trading volume of at
                  least 100,000 shares per day;

         (5)      the security must have "seasoned" on the Nasdaq Stock Market
                  or  another  recognized  market,  generally,  a  company  is
                  considered to be seasoned by Nasdaq if it has been listed on
                  a market for at least two years;  in the case of  spin-offs,
                  the operating history of the spin-off will be considered;

         (6)      if a security would  otherwise  qualify to be in the top 25%
                  of  the   issuers   included   in  the   Index   by   market
                  capitalization,  then a one year "seasoning"  criteria would
                  apply;

         (7)      if the  security is of a foreign  issuer,  the company  must
                  have a worldwide  market  value of at least $10  billion,  a
                  U.S.  market  value  of at  least $4  billion,  and  average
                  trading  volume  on the  Nasdaq  Stock  Market  of at  least
                  200,000 shares per day; in addition, foreign securities must
                  be eligible for listed options trading; and

         (8)      the  issuer  of the  security  may not have  entered  into a
                  definitive agreement or other arrangement which would result
                  in the  security no longer  being listed on the Nasdaq Stock
                  Market within the next six months.

         These Index eligibility  criteria may be revised from time to time by
the NASD without regard to the STRIDES Securities.

         The  Underlying  Stocks  are  evaluated   annually  as  follows  (the
evaluation is referred to as the "Annual Ranking  Review").  Securities listed
on the Nasdaq  Stock  Market  which meet the above  eligibility  criteria  are
ranked by market  value.  Index-eligible  securities  which are already in the
Index and which are in the top 150 eligible securities, based on market value,
are retained in the Index provided that the security was ranked in the top 100
eligible  securities as of the previous  year's annual review.  Securities not
meeting this  criteria are replaced.  The  replacement  securities  chosen are
those  Index-eligible  securities  not  currently  in the Index which have the
largest market  capitalization.  The list of annual additions and deletions is
publicly  announced  via a  press  release  in the  early  part  of  December.
Replacements are made effective after the close of trading on the third Friday
in December.  Moreover,  if at any time during the year an Underlying Stock is
no longer  traded on the Nasdaq Stock  Market,  or is otherwise  determined by
Nasdaq to become ineligible for continued inclusion in the Index, the security
will be replaced with the largest market capitalization security not currently
in the Index and meeting the Index eligibility criteria listed above.

         In addition to the Annual Ranking Review, the securities in the Index
are  monitored  every day by Nasdaq  with  respect to changes in total  shares
outstanding arising from secondary offerings, stock repurchases,  conversions,
or other  corporate  actions.  Nasdaq  has  adopted  the  following  quarterly
scheduled weight adjustment  procedures with respect to these changes.  If the
change in total shares  outstanding  arising from corporate  action is greater
than or equal to 5.0%,  the  change  is  ordinarily  made to the  Index on the
evening prior to the effective date of the corporate action. Otherwise, if the
change in total shares  outstanding is less than 5%, then all of these changes
are  accumulated and made effective at one time on a quarterly basis after the
close of trading on the third Friday in each of March,  June,  September,  and
December.  In either case, the Index share weights for the  Underlying  Stocks
are  adjusted  by the  same  percentage  amount  by  which  the  total  shares
outstanding have changed in the Underlying Stocks. Ordinarily,  whenever there
is a change  in  Index  share  weights  or a change  in a  component  security
included in the Index,  Nasdaq  adjusts the divisor to assure that there is no
discontinuity in the value of the Index which might otherwise be caused by any
the change.

Rebalancing of the Index

         Effective  after the close of trading on December 18, 1998 Nasdaq has
calculated the Index under a "modified  capitalization-weighted"  methodology,
which is a hybrid  between  equal  weighting and  conventional  capitalization
weighting. This methodology is expected to:

o        retain in general the economic attributes of capitalization weighting;

o        promote portfolio weight diversification, thereby limiting domination
         of the Index by a few large stocks;

o        reduce Index performance distortion by preserving the capitalization
         ranking of companies; and

o        reduce market impact on the smallest Underlying Stocks from necessary
         weight rebalancings.

         Under the methodology  employed, on a quarterly basis coinciding with
Nasdaq's  quarterly  scheduled weight  adjustment  procedures,  the Underlying
Stocks are categorized as either "Large Stocks" or "Small Stocks" depending on
whether  their  current  percentage  weights,  after  taking into  account the
scheduled weight adjustments due to stock repurchases, secondary offerings, or
other  corporate  actions,  are  greater  than,  or less than or equal to, the
average percentage weight in the Index, for example, as a 100-stock index, the
average percentage weight in the Index is 1.0%.

         The  quarterly  examination  will result in an Index  rebalancing  if
either one or both of the following two weight  distribution  requirements are
not met: (1) the current weight of the single  largest  market  capitalization
Underlying  Stock must be less than or equal to 24.0% and (2) the  "collective
weight" of those  Underlying  Stocks whose  individual  current weights are in
excess of 4.5%, when added together, must be less than or equal to 48.0%.

         If either one or both of these weight  distribution  requirements are
not met upon  quarterly  review,  a weight  rebalancing  will be  performed in
accordance with the following  plan.  First,  relating to weight  distribution
requirement (1) above, if the current weight of the single largest  Underlying
Stock exceeds 24.0%,  then the weights of all Large Stocks will be scaled down
proportionately  towards 1.0% by enough for the adjusted  weight of the single
largest  Underlying  Stock to be set to  20.0%.  Second,  relating  to  weight
distribution   requirement  (2)  above,  for  those  Underlying  Stocks  whose
individual  current  weights  or  adjusted  weights  in  accordance  with  the
preceding  step are in excess of 4.5%, if their  "collective  weight"  exceeds
48.0%,   then  the   weights  of  all  Large   Stocks   will  be  scaled  down
proportionately  towards 1.0% by just enough for the  "collective  weight," so
adjusted, to be set to 40.0%.

         The aggregate  weight reduction among the Large Stocks resulting from
either or both of the above rescalings will then be redistributed to the Small
Stocks in the following  iterative manner. In the first iteration,  the weight
of the largest  Small Stock will be scaled  upwards by a factor  which sets it
equal to the average Index weight of 1.0%.  The weights of each of the smaller
remaining  Small  Stocks  will be  scaled  up by the same  factor  reduced  in
relation to each stock's  relative  ranking among the Small Stocks so that the
smaller the  Underlying  Stock in the  ranking,  the less the  scale-up of its
weight. This is intended to reduce the market impact of the weight rebalancing
on the smallest component securities in the Index.

         In the  second  iteration,  the weight of the  second  largest  Small
Stock,  already adjusted in the first  iteration,  will be scaled upwards by a
factor which sets it equal to the average index weight of 1.0%. The weights of
each of the  smaller  remaining  Small  Stocks  will be scaled up by this same
factor  reduced in relation to each stock's  relative  ranking among the Small
Stocks so that, once again, the smaller the stock in the ranking, the less the
scale-up of its weight.

         Additional   iterations  will  be  performed  until  the  accumulated
increase in weight among the Small Stocks exactly equals the aggregate  weight
reduction  among the Large Stocks from  rebalancing in accordance  with weight
distribution requirement (1) and/or weight distribution requirement (2).

         Then, to complete the rebalancing  procedure,  once the final percent
weights  of each Index  Security  are set,  the Index  share  weights  will be
determined  anew based upon the last sale prices and aggregate  capitalization
of the Index at the close of trading on the  Thursday in the week  immediately
preceding  the  week of the  third  Friday  in  March,  June,  September,  and
December.  Changes to the Index share weights will be made effective after the
close of trading on the third Friday in March, June,  September,  and December
and an adjustment  to the Index  divisor will be made to ensure  continuity of
the Index.

License Agreement

     The Nasdaq Stock Market, Inc. and Merrill Lynch & Co., Inc. have entered
into a non-exclusive license agreement providing for the license to ML&Co., in
exchange for a fee, of the right to use the Index in connection with certain
securities, including the STRIDES Securities.

         The license  agreement  between  Nasdaq and ML&Co.  provides that the
following language must be stated in this prospectus:

         "The STRIDES Securities are not sponsored, endorsed, sold or promoted
         by, The Nasdaq Stock Market, Inc. (including its affiliates) (Nasdaq,
         with its  affiliates,  are  referred to as the  "Corporations").  The
         Corporations  have not passed on the legality or  suitability  of, or
         the accuracy or adequacy of descriptions and disclosures relating to,
         the STRIDES  Securities.  The Corporations  make no representation or
         warranty,  express or implied to the owners of the STRIDES Securities
         or any member of the public  regarding the  advisability of investing
         in securities generally or in the STRIDES Securities particularly, or
         the ability of the Nasdaq-100  Index(R) to track general stock market
         performance.  The Corporations' only relationship to ML&Co. is in the
         licensing of the Nasdaq-100(R),  Nasdaq-100  Index(R),  and Nasdaq(R)
         trademarks or service marks,  and trade names of the Corporations and
         the use of the Nasdaq-100 Index(R) which is determined,  composed and
         calculated  by  Nasdaq  without  regard  to  ML&Co.  or  the  STRIDES
         Securities.  Nasdaq has no obligation to take the needs of ML&Co.  or
         the  owners  of  the  STRIDES   Securities  into   consideration   in
         determining,  composing or calculating the Nasdaq-100  Index(R).  The
         Corporations are not responsible for and have not participated in the
         determination  of the timing  of,  prices  at, or  quantities  of the
         STRIDES   Securities  to  be  issued  or  in  the   determination  or
         calculation of the equation by which the STRIDES  Securities is to be
         converted into cash. The Corporations have no liability in connection
         with  the  administration,   marketing  or  trading  of  the  STRIDES
         Securities.

         The  Corporations do not guarantee the accuracy and/or  uninterrupted
         calculation of the Nasdaq-100  Index(R) or any data included therein.
         The Corporations make no warranty,  express or implied, as to results
         to be obtained by ML&Co.,  owners of the STRIDES  Securities,  or any
         other person or entity from the use of the Nasdaq-100 Index(R) or any
         data included  therein.  The Corporations  make no express or implied
         warranties,  and expressly disclaim all warranties of merchantability
         or  fitness  for a  particular  purpose  or use with  respect  to the
         Nasdaq-100  Index(R) or any data included  therein.  Without limiting
         any of the  foregoing,  in no event shall the  Corporations  have any
         liability  for any lost  profits or  special,  incidental,  punitive,
         indirect,   or  consequential   damages,  even  if  notified  of  the
         possibility of such damages."

         All  disclosures  contained in this  prospectus  regarding the Index,
including its make-up,  method of calculation  and changes in its  components,
are derived from publicly available information prepared by Nasdaq. ML&Co. and
MLPF&S do not assume any  responsibility  for the accuracy or  completeness of
this information.


                                  OTHER TERMS

         ML&Co.  issued  the  STRIDES  Securities  as a series of senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating to the STRIDES  Securities of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture.

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the STRIDES  Securities  are governed by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary.  In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.

Limitations Upon Liens

         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any Voting
Stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its Voting  Stock,  unless,  after giving  effect to any  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition, ML&Co. may not permit MLPF&S to:

     o   merge or consolidate, unless the surviving company is a Controlled
         Subsidiary, or

     o   convey or transfer its properties and assets substantially as an
         entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o   the resulting corporation, if other than ML&Co., is a corporation
         organized and existing under the laws of the United States of America
         or any U.S. state and assumes all of ML&Co.'s obligations to:

     o   pay any amounts due and payable or deliverable with respect to all the
         senior debt securities; and o perform and observe all of ML&Co.'s
         obligations under the 1983 Indenture, and

     o   ML&Co. or the successor corporation, as the case may be, is not,
         immediately after any consolidation or merger, in default under the
         1983 Indenture.

Modification and Waiver

         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

          o   change  the stated  maturity  date of the  principal  of, or any
              installment  of interest or Additional  Amounts  payable on, any
              senior debt security or any premium  payable on  redemption,  or
              change the redemption price;

          o   reduce the  principal  amount of, or the interest or  Additional
              Amounts  payable  on, any  senior  debt  security  or reduce the
              amount of  principal  which  could be  declared  due and payable
              before the stated maturity date;

          o   change the place or currency of any payment of  principal or any
              premium,  interest or Additional  Amounts  payable on any senior
              debt security;

          o   impair the right to institute suit for the enforcement of any
              payment on or with respect to any senior debt security;

          o   reduce the  percentage  in principal  amount of the  outstanding
              senior  debt  securities  of any  series,  the  consent of whose
              holders is required to modify or amend the 1983 Indenture; or

o             modify the foregoing  requirements  or reduce the  percentage of
              outstanding  senior debt securities  necessary to waive any past
              default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series:

          o   default in the payment of any interest or Additional Amounts
              payable when due and continuing for 30 days;

          o   default in the payment of any principal or premium when due;

          o   default in the deposit of any sinking fund payment, when due;

          o   default in the  performance  of any other  obligation  of ML&Co.
              contained in the 1983  Indenture  for the benefit of that series
              or in the senior debt securities of that series,  continuing for
              60 days after written notice as provided in the 1983 Indenture;

          o   specified events in bankruptcy, insolvency or reorganization of
              ML&Co.; and

          o   any other Event of Default  provided with respect to senior debt
              securities  of that series which are not  inconsistent  with the
              1983 Indenture.

         If an Event of  Default  occurs and is  continuing  for any series of
senior debt securities,  other than as a result of the bankruptcy,  insolvency
or  reorganization  of ML&Co.,  the  trustee or the holders of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money,  the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

          o   in the payment of any amounts due and payable or deliverable
              under the debt securities of that series; or

          o   in respect of an obligation  or provision of the 1983  Indenture
              which  cannot be  modified  under  the  terms of that  Indenture
              without the consent of each holder of each outstanding  security
              of each series of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The STRIDES  Securities  and other  series of senior debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co.is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the STRIDES Securities and other securities.  For further information
on ML&Co.  and the STRIDES  Securities,  you should refer to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

          o   incorporated documents are considered part of the prospectus;

          o   we can disclose important information to you by referring you to
              those documents; and

          o   information that we file with the SEC will automatically  update
              and supersede this incorporated information.

We incorporate  by reference the documents  listed below which were filed with
the SEC under the Exchange Act:

          o   annual report on Form 10-K for the year ended December 25, 1998;

          o   quarterly report on Form 10-Q for the period ended March 26,
              1999; and

          o   current reports on Form 8-K dated December 28, 1998, January 19,
              1999,  February 17, 1999,  February 18, 1999, February 22, 1999,
              February 23, 1999,  March 26,  1999,  April 13, 1999,  April 19,
              1999, May 26, 1999, May 28, 1999 and June 1, 1999.

         We also incorporate by reference each of the following documents that
we will  file  with the SEC  after  the  date of this  prospectus  until  this
offering is completed:

          o   reports filed under Sections 13(a) and (c) of the Exchange Act;

          o   definitive  proxy or information  statements filed under Section
              14 of  the  Exchange  Act  in  connection  with  any  subsequent
              stockholders' meeting; and

          o   any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the STRIDES  Securities  and is to be used by MLPF&S when making offers and
sales related to market-making transactions in the STRIDES Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         ML&Co. may offer the STRIDES Securities on the AMEX or off the
exchange in negotiated transactions or otherwise.

         The  distribution  of the  STRIDES  Securities  will  conform  to the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.


                                    EXPERTS

         The  consolidated  financial  statements  and the  related  financial
statement  schedule  incorporated  in this  prospectus  by reference  from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries  have
been  audited by Deloitte & Touche  LLP,  independent  auditors,  as stated in
their reports (which  express an  unqualified  opinion and which report on the
consolidated  financial  statements includes an explanatory  paragraph for the
change in  accounting  method for certain  internal-use  software  development
costs),  which  are  incorporated  herein  by  reference,  and  have  been  so
incorporated  in  reliance  upon the  reports  of such firm  given  upon their
authority as experts in accounting and auditing.

         With  respect to  unaudited  interim  financial  information  for the
periods included in the Quarterly  Reports on Form 10-Q which are incorporated
herein by reference,  Deloitte & Touche LLP have applied limited procedures in
accordance  with  professional  standards  for a review  of such  information.
However, as stated in their reports included in such Quarterly Reports on Form
10-Q and incorporated by reference herein,  they did not audit and they do not
express an opinion on such interim  financial  information.  Accordingly,  the
degree of reliance on their reports on such  information  should be restricted
in light of the limited nature of the review  procedures  applied.  Deloitte &
Touche LLP is not  subject to the  liability  provisions  of Section 11 of the
Securities Act for any such report on unaudited interim financial  information
because  any such  report is not a  "report"  or a "part" of the  Registration
Statement  prepared  or  certified  by an  accountant  within  the  meaning of
Sections 7 and 11 of the Securities Act.


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