DREYFUS MONEY MARKET INSTRUMENTS INC
N-30D, 2000-08-22
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Dreyfus

Money Market

Instruments, Inc.

SEMIANNUAL REPORT June 30, 2000

(reg.tm)





The  views  expressed herein are current to the date of this report. These views
and  the  composition  of the fund's portfolio are subject to change at any time
based on market and other conditions.

           * Not FDIC-Insured * Not Bank-Guaranteed * May Lose Value


                                 Contents

                                 THE FUND
--------------------------------------------------

                             2   Letter from the President

                             3   Discussion of Fund Performance

                             6   Statement of Investments

                            10   Statement of Assets and Liabilities

                            11   Statement of Operations

                            12   Statement of Changes in Net Assets

                            13   Financial Highlights

                            15   Notes to Financial Statements

                                 FOR MORE INFORMATION
---------------------------------------------------------------------------

                                 Back Cover

                                                                       The Fund

                                                           Dreyfus Money Market

                                                              Instruments, Inc.

LETTER FROM THE PRESIDENT

Dear Shareholder:

We  are  pleased  to  present  this  semiannual report for Dreyfus Money  Market
Instruments,  Inc.,  covering  the six-month period from January 1, 2000 through
June  30,  2000. Inside, you'll find valuable information about how the fund was
managed  during  the  reporting  period,  including a discussion with the fund's
portfolio manager, Thomas S. Riordan.

When  the  reporting  period  began,  international  and domestic economies were
growing   rapidly,  giving  rise  to  concerns  that  long-dormant  inflationary
pressures  might  reemerge.  Consumers  continued to spend heavily, unemployment
levels  reached  new lows and the stock market, while highly volatile, generally
continued to climb.

Because  robust  economic  growth  may trigger an acceleration of inflation, the
Federal  Reserve  Board  raised key short-term interest rates three times during
the  reporting  period,  for  a  total increase of 1.00 percentage points. These
interest-rate  hikes  contributed  to  a  total  interest-rate  increase of 1.75
percentage  points  since  late  June  1999, before the current reporting period
began.  While these economic influences generally adversely affected longer term
bonds, they positively influenced money market yields.

We  appreciate  your confidence over the past six months, and we look forward to
your continued participation in Dreyfus Money Market Instruments, Inc.

Sincerely,


Stephen E. Canter
President and Chief Investment Officer
The Dreyfus Corporation
July 17, 2000




DISCUSSION OF FUND PERFORMANCE

Thomas S. Riordan, Portfolio Manager

How did Dreyfus Money Market Instruments, Inc. perform during the period?

For  the  six-month  period  ended  June  30, 2000, the fund produced annualized
yields  of  5.31%  for  its  Money  Market  Series  and 4.97% for its Government
Securities Series. Taking into account the effect of compounding, the annualized
effective yields were 5.44% for the fund's Money Market Series and 5.09% for its
Government Securities Series.(1)

What is the fund's investment approach?

The  fund seeks a high level of income as is consistent with the preservation of
capital and the maintenance of liquidity. To pursue this goal:

*The  fund' s  Money  Market  Series invests in a diversified portfolio of high
quality,   short-term  debt  securities.  These  include  securities  issued  or
guaranteed  as  to principal and interest by the U.S. Government or its agencies
and  instrumentalities, certificates of deposit, short-term securities issued by
domestic  or  foreign  banks,  repurchase  agreements,  asset-backed securities,
domestic  and  dollar-denominated  foreign commercial paper and other short-term
corporate  obligations,  including  those  with  floating  or  variable rates of
interest,  and  dollar-denominated  obligations  issued or guaranteed by foreign
governments.

*The  fund's Government Securities Series invests only in short-term securities
issued  or guaranteed as to principal and interest by the U.S. Government or its
agencies  or  instrumentalities  and  repurchase  agreements in respect of these
securities.

What factors influenced the fund's performance?

The  money  markets  continued  to  digest mixed signals from the economy as the
reporting  period  began. The Open Market Committee of the Federal Reserve Board
(the    "Fed"   ) had    acted   to   relieve   inflationary   pres
                                                                        The Fund


DISCUSSION OF FUND PERFORMANCE (CONTINUED)

sures,  taking a cautious, measured approach. It had raised interest rates three
times  in  1999,  each  time  by 0.25 percentage points. Each tightening brought
renewed  debate  as  to  whether rates were sufficiently high to ease growth and
head  off  inflation, or whether further tightening would be necessary. Economic
data  released  in  early  January  pointed toward the possibility of additional
interest-rate increases in the near future.

Gross  domestic  product  (" GDP" ) growth  had quickened to a stunning 7.3% for
fourth  quarter  1999.  Concern  mounted  that  economic growth was accelerating
considerably past a limit that could be sustained without triggering destructive
levels  of  inflation.  In  a  continuing attempt to head off inflation, the Fed
raised  interest  rates for the fourth time in this cycle of tightening in early
February, and a fifth time in March.

Preliminary  first  quarter 2000 figures showed GDP growth at a less torrid, but
still  strong  5.4% . Continuing  indications  that  prices, most notably in the
energy  sector, were moving higher added to the money market's concerns. Greater
than  expected  domestic  demand  for  goods and services continued. As overseas
economies  have recovered, their demand for raw materials has picked up as well,
creating global upward pressure on prices.

Through much of early 2000, consumer confidence and consumer spending showed few
signs of abating in response to gradual and relatively mild rate hikes. Home and
auto  sales  continued  at  record  paces through the first quarter and into the
second  quarter  of  2000.  The  tightest U.S. labor market in the past 30 years
added  the  threat of wage-driven inflation. Such price and wage factors led the
Fed  to  its  largest  rate  hike in its current credit-tightening cycle: a 0.50
percentage-point increase at its May 16th meeting.

More  recently,  we have seen signs that the Fed's series of rate hikes may have
begun  to slow the economy. Retail sales declined in both April and May, housing
starts  have  slowed  dramatically,  and  inflation  figures  through early 2000
appeared to be lower than market expectations. As a result, the Fed chose not to
tighten rates further at its June 28th meeting.

But  economic signals remain contradictory; it is not clear that the economy has
yet  cooled  sufficiently  for  the  Fed  to  consider its job done. Immediately
following  the  Fed' s  June  meeting, economic reports indicated that, although
growth  may  be  slowing, inflation may be higher than previously thought. While
indexes  measuring  demand  for  housing and labor declined in May, the personal
consumption expenditures price index for first quarter 2000 was adjusted upward,
from  3.1%  to  3.5%. This measure, closely followed by Federal Reserve Chairman
Greenspan,  is  generally  considered  by  many  to  be among the best gauges of
inflation  and  could  indicate  that  Fed-described  concerns  over "heightened
inflation pressure" may lead to a further tightening when the Fed meets again in
August.

What is the fund's current strategy?

In  anticipation  of  rising  interest  rates throughout the six-month reporting
period,  the  fund adopted a somewhat defensive strategy. Most significantly, we
reduced  the  fund' s  average  maturity  in  order to increase its flexibility.
Shorter  maturities  were  designed  to  help  the  fund  take  advantage of any
potential opportunities from additional interest-rate increases.

As  of  June 30, 2000, the fund's average maturity remained relatively short. We
will continue to monitor the situation, including the economy and changes in the
Fed' s monetary policy, and we will look to take what we believe are appropriate
actions in response with respect to the fund's portfolio.

July 17, 2000

(1)  ANNUALIZED EFFECTIVE YIELD IS BASED UPON DIVIDENDS DECLARED DAILY AND
REINVESTED MONTHLY. PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS. YIELDS
FLUCTUATE. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FDIC OR
THE U.S. GOVERNMENT. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR
INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE
FUND.

                                                             The Fund

STATEMENT OF INVESTMENTS
<TABLE>

MONEY MARKET SERIES

June 30, 2000 (Unaudited)

STATEMENT OF INVESTMENTS

                                                                                              Principal
NEGOTIABLE BANK CERTIFICATES OF DEPOSIT--22.7%                                               Amount ($)               Value ($)
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                           <C>                      <C>

Allfirst Bank

   6.64%, 2/9/2001                                                                            5,000,000  (a)           4,998,172

American Express Centurion Bank

   6.59%, 7/19/2000                                                                           5,000,000                5,000,000

First Tennessee Bank N.A.

   6.67%, 12/11/2000                                                                          5,000,000  (a)           5,000,000

South Trust N.A.

   6.55%, 7/11/2000                                                                           5,000,000                5,000,000

Union Bank of California N.A.

   5.98%, 8/1/2000                                                                            4,000,000                4,000,000

Wesdeutsche Landesbank (London)

   7.01%, 3/16/2001                                                                           5,000,000                5,000,000

TOTAL NEGOTIABLE BANK CERTIFICATES OF DEPOSIT

   (cost $28,998,172)                                                                                                 28,998,172
------------------------------------------------------------------------------------------------------------------------------------

COMMERCIAL PAPER--48.2%
------------------------------------------------------------------------------------------------------------------------------------

Associates Corp. of North America

   6.95%, 7/3/2000                                                                            5,500,000                5,497,876

BCI Funding Corp.

   6.50%, 8/2/2000                                                                            4,000,000                3,977,262

Canadian Imperial Holdings Inc.

   6.62%, 8/3/2000                                                                            4,000,000                3,976,130

DaimlerChrysler North America Holding Corp.

   6.25%, 7/18/2000                                                                           5,000,000                4,985,479

Den Danske Corp.

   6.77%, 8/28/2000                                                                           5,000,000                4,946,431

General Electric Capital Corp.

   6.67%, 9/14/2000                                                                           4,000,000                3,945,333

General Electric Capital Services Corp.

   6.67%, 9/15/2000                                                                           4,000,000                3,944,604

Lehman Brothers Holdings Inc.

   7.40%, 2/12/2001                                                                           5,000,000                4,779,964

San Paolo IMI U.S. Financial Co.

   6.60%, 8/4/2000                                                                            5,000,000                4,969,353

Santander Finance (DE) Inc.

   6.68%, 9/5/2000                                                                            5,000,000                4,939,776

Spintab AB

   6.25%, 7/20/2000                                                                           5,000,000                4,983,850

Swedbank Inc.

   6.57%, 7/12/2000                                                                           5,000,000                4,990,069



                                                                                              Principal
COMMERCIAL PAPER (CONTINUED)                                                                 Amount ($)                Value ($)
------------------------------------------------------------------------------------------------------------------------------------

UBS Finance Delaware LLC

   6.95%, 7/3/2000                                                                            5,500,000                5,497,877

TOTAL COMMERCIAL PAPER

   (cost $61,434,004)                                                                                                 61,434,004
------------------------------------------------------------------------------------------------------------------------------------

CORPORATE NOTES--18.4%
------------------------------------------------------------------------------------------------------------------------------------

Heller Financial Inc.

   6.90%, 8/7/2000                                                                            4,000,000  (a)           4,000,000

Merrill Lynch & Co. Inc.

   6.64%, 3/28/2001                                                                           5,000,000  (a)           5,000,000

Morgan (J.P.) & Co.

   6.67%, 3/6/2001                                                                            5,000,000  (a)           4,999,660

Morgan Stanley Dean Witter & Co.

   6.67%, 3/19/2001                                                                           5,000,000  (a)           5,000,000

Paine Webber Group Inc.

   6.85%, 9/15/2000                                                                           4,500,000  (a)           4,500,000

TOTAL CORPORATE NOTES

   (cost $23,499,660)                                                                                                 23,499,660
------------------------------------------------------------------------------------------------------------------------------------

SHORT-TERM BANK NOTES--3.1%
------------------------------------------------------------------------------------------------------------------------------------

Bank of America NA

  6.25%, 7/20/2000

   (cost $4,000,000)                                                                          4,000,000                4,000,000
------------------------------------------------------------------------------------------------------------------------------------

TIME DEPOSITS--7.5%
------------------------------------------------------------------------------------------------------------------------------------

Bayerische Hypo-und Vereinsbank AG (Grand Cayman)

   7.00%, 7/3/2000                                                                            5,500,000                5,500,000

HSBC USA Inc. (London)

   6.75%, 7/3/2000                                                                            4,063,000                4,063,000

TOTAL TIME DEPOSITS

   (cost $9,563,000)                                                                                                   9,563,000
------------------------------------------------------------------------------------------------------------------------------------

TOTAL INVESTMENTS

   (cost $127,494,836)                                                                            99.9%              127,494,836

CASH AND RECEIVABLES (NET)                                                                          .1%                   77,528

NET ASSETS                                                                                       100.0%              127,572,364

(A) VARIABLE INTEREST RATE--SUBJECT PERIODIC CHANGE.

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund


STATEMENT OF INVESTMENTS
<TABLE>

GOVERNMENT SECURITIES SERIES

June 30, 2000 (Unaudited)

                                                                        Annualized
                                                                          Yield on
                                                                           Date of                Principal
U.S. TREASURY BILLS--49.5%                                             Purchase (%)              Amount ($)            Value ($)
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                           <C>                <C>                   <C>

7/6/2000

   (cost $159,893,333)                                                         4.80             160,000,000          159,893,333
------------------------------------------------------------------------------------------------------------------------------------

U.S. TREASURY NOTES--7.6%
------------------------------------------------------------------------------------------------------------------------------------

5.25%, 5/31/2000

   (cost $24,652,313)                                                          6.61              25,000,000           24,652,313
------------------------------------------------------------------------------------------------------------------------------------

REPURCHASE AGREEMENTS--43.4%
------------------------------------------------------------------------------------------------------------------------------------

Barclays Capital Inc.

  dated 6/30/2000, due 7/3/2000
  in the amount of $12,206,253

   (fully collateralized by $12,355,000
   U.S. Treasury Notes, 5.00%,
   due 2/8/2001, value $12,446,901)                                            6.15              12,200,000            12,200,000

Bears, Stearns & Co.

  dated 6/30/2000, due 7/3/2000
  in the amount of $32,017,333

   (fully collateralized by $34,120,000
   U.S. Treasury Strips, due 5/15/2001,
   value $32,390,116)                                                          6.50              32,000,000            32,000,000

Donaldson, Lufkins & Jenrette Securities Inc.

  dated 6/30/2000, due 7/3/2000,
  in the amount of $32,017,467

   (fully collateralized by $32,166,000
   U.S. Treasury Notes, 5.00%, due 2/28/2001,
   value $32,401,809)                                                          6.55              32,000,000            32,000,000

Morgan Stanley Dean Witter & Co.

  dated 6/30/2000, due 7/3/2000
   in the amount of $32,017,253

   (fully collateralized by $32,240,000
   U.S. Treasury Notes, 5.00%, due 2/28/2001,
   value $32,646,224)                                                          6.47              32,000,000            32,000,000



                                                                         Annualized
                                                                           Yield on
                                                                            Date of               Principal
REPURCHASE AGREEMENTS (CONTINUED)                                      Purchase (%)              Amount ($)            Value ($)
------------------------------------------------------------------------------------------------------------------------------------

Warburg Dillion Read, Inc.

  dated 6/30/2000, due 7/3/2000,
  in the amount of $32,017,467

  (fully collateralized by $30,434,000

   U.S. Treasury Notes, 13.125%, due 5/15/2001,
   value $32,640,465)                                                          6.55             32,000,000            32,000,000

TOTAL REPURCHASE AGREEMENTS

   (cost $140,200,000)                                                                                               140,200,000
------------------------------------------------------------------------------------------------------------------------------------

TOTAL INVESTMENTS (cost $324,745,646)                                                            100.5%              324,745,646

LIABILITIES, LESS CASH AND RECEIVABLES                                                            (.5%)              (1,524,615)

NET ASSETS                                                                                       100.0%              323,221,031

SEE NOTES TO FINANCIAL STATEMENTS
</TABLE>

                                                             The Fund


STATEMENT OF ASSETS AND LIABILITIES
<TABLE>

June 30, 2000 (Unaudited)

                                                                                                       Money            Government
                                                                                                      Market            Securities

                                                                                                      Series                Series
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                                 <C>                  <C>

ASSETS ($):

Investments in securities, See Statement of Investments

   (including repurchase agreements of $140,200,000
   for the Government Securities Series)--Note 2(b)                                              127,494,836            324,745,646

Interest receivable                                                                                  443,568                136,426

Prepaid expenses                                                                                      60,662                118,919

                                                                                                 127,999,066            325,000,991
------------------------------------------------------------------------------------------------------------------------------------

LIABILITIES ($):

Due to The Dreyfus Corporation and affiliates                                                         54,838                181,850

Cash overdraft due to Custodian                                                                      322,988              1,518,447

Accrued expenses and other liabilities                                                                48,876                 79,663

                                                                                                     426,702              1,779,960
------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($)                                                                                   127,572,364            323,221,031
------------------------------------------------------------------------------------------------------------------------------------

COMPOSITION OF NET ASSETS ($):

Paid-in capital                                                                                  127,612,485            323,305,410

Accumulated net realized gain (loss) on investments                                                  (40,121)               (84,379)
------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($)                                                                                   127,572,364            323,221,031

NET ASSET VALUE PER SHARE

                                                                                                       Money            Government
                                                                                                      Market            Securities
                                                                                                      Series                Series
------------------------------------------------------------------------------------------------------------------------------------

Net Assets ($)                                                                                   127,572,364           323,221,031

Shares Outstanding                                                                               127,595,985           323,305,410
------------------------------------------------------------------------------------------------------------------------------------

NET ASSET VALUE PER SHARE ($)                                                                           1.00                  1.00

SEE NOTES TO FINANCIAL STATEMENTS.




STATEMENT OF OPERATIONS

Six Months Ended June 30, 2000 (Unaudited)

                                                                                                       Money            Government
                                                                                                      Market            Securities
                                                                                                      Series                Series
------------------------------------------------------------------------------------------------------------------------------------

INVESTMENT INCOME ($):

INTEREST INCOME                                                                                    3,460,822             9,952,871

EXPENSES--NOTE 2:

Management fee-Note 3(a)                                                                             269,609               850,001

Shareholder servicing costs-Note 3(b)                                                                212,466               454,942

Custodian fees                                                                                        20,579                30,651

Professional fees                                                                                     13,955                16,142

Registration fees                                                                                      8,734                 9,303

Prospectus and shareholders' reports                                                                   7,124                12,728

Directors' fees and expenses-Note 3(c)                                                                 4,526                18,921

Miscellaneous                                                                                          2,625                16,160

TOTAL EXPENSES                                                                                       539,618             1,408,848

INVESTMENT INCOME--NET                                                                             2,921,204             8,544,023
------------------------------------------------------------------------------------------------------------------------------------

NET REALIZED GAIN (LOSS) ON INVESTMENTS--NOTE 2(B) ($)                                                (9,973)                3,065

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                                               2,911,231             8,547,088

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund

<TABLE>

STATEMENT OF CHANGES IN NET ASSETS

                                                 Money Market Series                            Government Securities Series
                                  ------------------------------------------------------------------------------------------------
                                  Six Months Ended                                    Six Months Ended
                                     June 30, 2000                Year Ended             June 30, 2000               Year Ended
                                        (Unaudited)        December 31, 1999                (Unaudited)        December 31, 1999
------------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>                      <C>                        <C>                       <C>

OPERATIONS:

Investment
   income-net                            2,921,204                 4,467,006                 8,544,023                17,681,980

Net realized gain
   (loss) on investments                   (9,973)                   (1,333)                     3,065                  (87,197)

NET INCREASE (DECREASE)
   IN NET ASSETS

   RESULTING FROM
   OPERATIONS                            2,911,231                 4,465,673                 8,547,088                17,594,783
------------------------------------------------------------------------------------------------------------------------------------

DIVIDENDS TO
   SHAREHOLDERS FROM ($):

Investment income-net                  (2,921,204)               (4,467,006)               (8,544,023)               (17,681,980)
------------------------------------------------------------------------------------------------------------------------------------

CAPITAL STOCK TRANSACTIONS
   ($1.00 PER SHARE):

Net proceeds from
   shares sold                         404,717,471               320,522,771               770,697,474             1,597,921,400

Dividends reinvested                     1,497,985                 2,829,101                 4,598,801                10,137,442

Cost of shares
   redeemed                          (378,839,088)             (333,779,964)             (815,026,936)            (1,672,681,750)

INCREASE (DECREASE)
   IN NET ASSETS FROM

   CAPITAL STOCK
   TRANSACTIONS                         27,376,368              (10,428,092)              (39,730,661)               (64,622,908)

TOTAL INCREASE
   (DECREASE)

   IN NET ASSETS                        27,366,395              (10,429,425)              (39,727,596)               (64,710,105)
------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($):

Beginning of Period                    100,205,969               110,635,394               362,948,627               427,658,732

END OF PERIOD                          127,572,364               100,205,969               323,221,031               362,948,627

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>



FINANCIAL HIGHLIGHTS Money Market Series

The  following tables describe the performance for the fiscal periods indicated.
Total return shows how much your investment in the fund would have increased (or
decreased)  during  each  period,  assuming you had reinvested all dividends and
distributions.  These  figures  have  been  derived  from  the  fund's financial
statements.

<TABLE>

                                          Six Months Ended
                                             June 30, 2000                               Year Ended December 31,
                                                                    ----------------------------------------------------------------
                                                (Unaudited)         1999         1998          1997           1996          1995
------------------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>            <C>           <C>            <C>           <C>            <C>

PER SHARE DATA ($):

Net asset value,

   beginning of period                                1.00          1.00          1.00           1.00          1.00          1.00

Investment Operations:

Investment income--net                                .027          .044          .047          .047           .046          .053

Distributions:

Dividends from investment
   income-net                                       (.027)        (.044)        (.047)         (.047)        (.046)        (.053)

Net asset value, end of period                        1.00         1.00          1.00           1.00          1.00          1.00
------------------------------------------------------------------------------------------------------------------------------------

TOTAL RETURN (%)                                      5.43(a)      4.45          4.76           4.76          4.73          5.46
------------------------------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA (%):

Ratio of expenses to
   average net assets                                 1.00(a)       .94           .94           1.00           .93           .84

Ratio of net investment income

   to average net assets                              5.40(a)      4.35          4.66           4.66          4.63          5.33

Decrease reflected in above
   expense ratios due to under-
   takings by The Dreyfus Corporation                   --           --           --             .01            --            --
------------------------------------------------------------------------------------------------------------------------------------

Net Assets, end of period
   ($ x 1,000)                                     127,572      100,206       110,635        118,767       129,344       144,172

(A) ANNUALIZED.

SEE NOTES TO FINANCIAL STATEMENTS.


                                                             The Fund



FINANCIAL HIGHLIGHTS Government Securities Series

                                          Six Months Ended
                                             June 30, 2000                                 Year Ended December 31,
                                                                    ----------------------------------------------------------------
                                                (Unaudited)         1999          1998          1997           1996          1995
------------------------------------------------------------------------------------------------------------------------------------

PER SHARE DATA ($):

Net asset value,

   beginning of period                                1.00          1.00          1.00           1.00          1.00          1.00

Investment Operations:

Investment income--net                                .025          .042          .047           .046          .045          .051

Distributions:

Dividends from investment
   income-net                                       (.025)        (.042)        (.047)         (.046)        (.045)        (.051)

Net asset value, end of period                        1.00         1.00          1.00           1.00          1.00          1.00
------------------------------------------------------------------------------------------------------------------------------------

TOTAL RETURN (%)                                      5.07(a)      4.31          4.83           4.72          4.60          5.18
------------------------------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA (%):

Ratio of expenses to
   average net assets                                 .83(a)        .75           .69            .87           .90           .83

Ratio of net investment income

   to average net assets                             5.01(a)       4.24          4.71           4.62          4.50          5.07
------------------------------------------------------------------------------------------------------------------------------------

Net Assets, end of period
   ($ x 1,000)                                    323,221       362,949       427,659        380,992       441,769       431,444

A   ANNUALIZED.

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>



NOTES TO FINANCIAL STATEMENTS (Unaudited)

NOTE 1--General:

Dreyfus  Money  Market  Instruments,  Inc.  (the "fund") is registered under the
Investment  Company  Act  of  1940,  as  amended  (the  "Act"), as a diversified
open-end  management investment company and operates as a series company issuing
two  classes  of  Common  Stock:  the  Money  Market  Series  and the Government
Securities  Series. The fund accounts separately for the assets, liabilities and
operations  of  each  series.  The  fund' s  investment  objective is to provide
investors  with  as  high  a  level  of current income as is consistent with the
preservation   of   capital  and  the  maintenance  of  liquidity.  The  Dreyfus
Corporation (the "Manager") serves as the fund's investment adviser. The Manager
is  a direct subsidiary of Mellon Bank, N.A., which is a wholly-owned subsidiary
of Mellon Financial Corporation.

Effective  March  22,  2000, Dreyfus Service Corporation ("DSC"), a wholly-owned
subsidiary  of  the  Manager, became the distributor of the fund's shares, which
are  sold to the public without a sales charge. Prior to March 22, 2000, Premier
Mutual  Fund Services, Inc. was the distributor. The fund is authorized to issue
5 billion shares of $.001 par value Common Stock for the Money Market Series and
10  billion shares of $.001 par value Common Stock for the Government Securities
Series.

It  is  the  fund's policy to maintain a continuous net asset value per share of
$1.00  for  each  series;  the  fund  has  adopted certain investment, portfolio
valuation and dividend and distribution policies to enable it to do so. There is
no assurance, however, that the fund will be able to maintain a stable net asset
value per share of $1.00 for each series.

The  fund' s  financial  statements  are  prepared  in accordance with generally
accepted accounting principles which may require the use of management estimates
and assumptions. Actual results could differ from those estimates.

                                                             The Fund

NOTES TO FINANCIAL STATEMENTS (Unaudited) (CONTINUED)

NOTE 2--Significant Accounting Policies:

(a) Portfolio valuation: Investments in securities are valued at amortized cost,
which has been determined by the fund's Board of Directors to represent the fair
value of the fund's investments.

(b)  Securities  transactions and investment income: Securities transactions are
recorded  on  a  trade  date  basis.  Realized  gain  and  loss  from securities
transactions  are  recorded  on  the  identified  cost basis. Interest income is
recognized  on the accrual basis. Cost of investments represents amortized cost.
Under  the  terms of the custody agreement, the Money Market Series received net
earnings  credits  of  $  3,268  during  the period ended June 30, 2000 based on
available cash balances left on deposit. Income earned under this arrangement is
included  in  interest. Under the terms of the custody agreement, the Government
Securities Series receives net earnings credits based on available cash balances
left on deposit.

The  fund  may  enter  into  repurchase  agreements with financial institutions,
deemed  to  be  creditworthy  by  the  fund' s  Manager, subject to the seller's
agreement  to repurchase and the fund's agreement to resell such securities at a
mutually   agreed   upon  price.  Securities  purchased  subject  to  repurchase
agreements are deposited with the fund's custodian and, pursuant to the terms of
the  repurchase  agreement,  must have an aggregate market value greater than or
equal  to  the repurchase price plus accrued interest at all times. If the value
of  the underlying securities falls below the value of the repurchase price plus
accrued  interest,  the  fund  will  require  the  seller  to deposit additional
collateral by the next business day. If the request for additional collateral is
not met, or the seller defaults on its repurchase obligation, the fund maintains
the  right  to  sell the underlying securities at market value and may claim any
resulting loss against the seller.

(c)  Expenses: Expenses directly attributable to each series are charged to that
series'  operations;  expenses which are applicable to both series are allocated
between them on a pro rata basis.


(d)  Dividends  to  shareholders:  It is the policy of the fund, with respect to
both  series,  to  declare dividends from investment income-net on each business
day;  such dividends are paid monthly. Dividends from net realized capital gain,
with  respect  to both series, are normally declared and paid annually, but each
series  may  make  distributions  on  a  more  frequent basis to comply with the
distribution  requirements of the Internal Revenue Code of 1986, as amended (the
" Code" ). However,  to  the  extent  that a net realized capital gain of either
series can be reduced by a capital loss carryover of that series, such gain will
not be distributed.

(e) Federal income taxes: It is the policy of each series to continue to qualify
as  a  regulated  investment  company,  if  such  qualification  is  in the best
interests  of  its  shareholders, by complying with the applicable provisions of
the  Code,  and to make distributions of taxable income sufficient to relieve it
from substantially all Federal income and excise taxes.

The  Money  Market  Series has an unused capital loss carryover of approximately
$30,000  available  for Federal income tax purposes to be applied against future
net securities profits, if any, realized subsequent to December 31, 1999. If not
applied,  $18,000  of  the  carryover  expires in fiscal 2004, $4,000 expires in
fiscal 2005, $7,000 expires in fiscal 2006 and $1,000 expires in fiscal 2007.

The  Government  Securities  Series  has  an  unused  capital  loss carryover of
approximately  $87,000  available  for Federal income tax purposes to be applied
against  future  net securities profits, if any, realized subsequent to December
31, 1999. If not applied, the carryover expires in fiscal 2007.

At  June 30, 2000, the cost of investments of each series for Federal income tax
purposes was substantially the same as the cost for financial reporting purposes
(see the Statements of Investments).

                                                             The Fund

NOTES TO FINANCIAL STATEMENTS (Unaudited) (CONTINUED)

NOTE 3--Management Fee and Other Transactions With Affiliates:

(a)  Pursuant  to  a  management  agreement  ("Agreement") with the Manager, the
management  fee  for  each series is computed at the annual rate of .50 of 1% of
the value of the average daily net assets of each series and is payable monthly.

(b)  Under  the  Shareholder Services Plan, each series reimburses DSC an amount
not  to  exceed an annual rate of .25 of 1% of the value of each series' average
daily  net  assets for certain allocated expenses of providing personal services
and/or  maintaining  shareholder  accounts.  The  services  provided may include
personal   services   relating   to  shareholder  accounts,  such  as  answering
shareholder  inquiries  regarding  the  fund  and  providing  reports  and other
information,  and  services  related to the maintenance of shareholder accounts.
During  the  period  ended  June  30,  2000,  the  Money  Market  Series and the
Government  Securities  Series were charged $122,874 and $279,918, respectively,
pursuant to the Shareholder Services Plan.

The  fund  compensates  Dreyfus Transfer, Inc., a wholly-owned subsidiary of the
Manager,   under  a  transfer  agency  agreement  for  providing  personnel  and
facilities  to  perform transfer agency services for the fund. During the period
ended  June  30,  2000,  the  Money  Market Series and the Government Securities
Series,  were  charged  $59,296  and  $106,271,  respectively,  pursuant  to the
transfer agency agreement.

(c) Each Board member also serves a Board member of other funds within the
Dreyfus complex (collectively, the "Fund Group"). Effective January 1, 2000,
each Board member who is not an "affiliated person" as defined in the Act
receives an annual fee of $40,000 and an attendance fee of $6,000 for each in
person meeting and $500 for telephone meetings. These fees are allocated among
the funds in the Fund Group. The chairman of the Board receives an additional
25% of such compensation. Subject to the fund's Emeritus Program Guidelines,
Emeritus Board Members, if any, receive 50% of the fund's annual retainer fee
and per meeting fee paid at the time the Board member achieves emeritus status.

                                                             The Fund

NOTES




                                                             The Fund

                                                           For More Information

                        Dreyfus
                        Money Market
                        Instrument, Inc.
                        200 Park Avenue
                        New York, NY 10166

                      Manager

                        The Dreyfus Corporation
                        200 Park Avenue
                        New York, NY 10166

                      Custodian

                        The Bank of New York
                        100 Church Street
                        New York, NY 10286

                      Transfer Agent &
                      Dividend Disbursing Agent

                        Dreyfus Transfer, Inc.
                        P.O. Box 9671
                        Providence, RI 02940

                      Distributor

                        Dreyfus Service Corporation
                        200 Park Avenue
                        New York, NY 10166


To obtain information:

BY TELEPHONE
Call 1-800-645-6561

BY MAIL  Write to:
The Dreyfus Family of Funds
144 Glenn Curtiss Boulevard
Uniondale, NY 11556-0144

BY E-MAIL  Send your request
to [email protected]

ON THE INTERNET  Information can be viewed online or downloaded from:

http://www.dreyfus.com

(c) 2000 Dreyfus Service Corporation                               008-060SA006





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