NETSCOUT SYSTEMS INC
10-Q, 2000-02-14
COMPUTER INTEGRATED SYSTEMS DESIGN
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<PAGE>


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q

(Mark One)
     [ X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
For the quarterly period ended December 31, 1999

                                       OR
     [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
For the transition period from              to
                              --------------  --------------

Commission file number    0000-26251

                             NETSCOUT SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)

         Delaware                                        04-2837575
  ---------------------                            ----------------------
(State or other jurisdiction of                (IRS Employer Identification No.)
incorporation or organization)

                   4 Technology Park Drive, Westford, MA 01886
           -----------------------------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (978) 614-4000
           -----------------------------------------------------------
              (Registrant's telephone number, including area code)

Indicate by check mark whether the registrant: (1) has filed all reports
required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.

YES [X ] NO [  ]

The number of shares outstanding of the registrant's common stock, as of
February 1, 2000 was 26,105,766.


<PAGE>


                                    FORM 10-Q
                     FOR THE QUARTER ENDED DECEMBER 31, 1999
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

Item Number                                                                                               Page

                          PART I: FINANCIAL INFORMATION

<S>                                                                                                       <C>
Item 1.  Financial Statements                                                                              3
                  a.) Consolidated Balance Sheet:
                       As of December 31, 1999 (unaudited) and March 31, 1999 (unaudited)
                  b.) Consolidated Statement of Income:
                       For the three and nine months ended December 31, 1999
                       (unaudited) and December 31, 1998 (unaudited)
                  c.) Consolidated Statement of Cash Flows:
                       For the nine months ended December 31, 1999 (unaudited) and
                       December 31, 1998 (unaudited)
                  d.) Notes to the Consolidated Financial Statements

Item 2.  Management's Discussion and Analysis of Financial Condition and Results
                  of Operations                                                                            8

Item 3.  Quantitative and Qualitative Disclosures About Market Risk                                       18

                           PART II: OTHER INFORMATION

Item 1.  Legal Proceedings                                                                                18

Item 2.  Changes in Securities and Use of Proceeds                                                        18

Item 6.  Exhibits and Reports on Form 8-K                                                                 19

SIGNATURES                                                                                                20

EXHIBIT INDEX                                                                                             21
</TABLE>

                                                                               2


<PAGE>
                          PART I: FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

                             NETSCOUT SYSTEMS, INC.
                           CONSOLIDATED BALANCE SHEET
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                            DECEMBER 31,           MARCH 31,
                                                                                               1999                  1999
                                                                                               ----                  ----
<S>                                                                                            <C>                <C>
ASSETS
Current assets:

Cash and cash equivalents                                                                      $  51,277          $  25,477
Short-term investments                                                                            12,747                  -

Accounts receivable, net of allowance for doubtful accounts and returns of $1,025
and $1,036 at December 31,  1999 and March 31, 1999, respectively                                  8,600              6,550
Inventories                                                                                        4,452              3,165
Refundable income taxes                                                                              304                217
Deferred income taxes                                                                              1,196              1,196
Prepaids and other current assets                                                                  3,330                821
                                                                                              ----------         ----------
   Total current assets                                                                           81,906             37,426
Fixed assets, net                                                                                  5,327              4,227
Notes receivable - stockholders                                                                        -              2,000
Deferred income taxes                                                                                321                321
                                                                                              ----------         ----------
   Total assets                                                                                $  87,554          $  43,974
                                                                                              ==========         ==========
LIABILITIES, REDEEMABLE CONVERTIBLE COMMON STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
Accounts payable                                                                               $   2,802          $   3,945
Accrued compensation                                                                               3,761              3,539
Accrued other                                                                                      2,468              1,165
Customer deposits                                                                                     34                 34
Deferred revenue                                                                                   6,332              4,254
                                                                                              ----------         ----------
   Total current liabilities                                                                      15,397             12,937
Commitments and contingencies
Redeemable convertible common stock:
Class B redeemable convertible common stock, $0.001 par value; no shares
authorized, issued or outstanding at December 31, 1999; 6,977,254 shares
authorized, issued and outstanding at March 31, 1999                                                  -             44,161
                                                                                              ----------         ----------
Stockholder's equity (deficit):
Preferred stock:
Preferred stock (undesignated), $0.001 par value, 5,000,000 shares authorized, no
shares issued or outstanding at December 31, 1999; no shares authorized, issued or
outstanding at March 31, 1999                                                                          -                  -
Series A convertible preferred stock, $0.001 par value; no shares authorized, issued or
outstanding at December 31, 1999; 631,579 shares authorized and issued, 315,790 shares
outstanding at March 31, 1999                                                                          -              5,964
Common stock, $0.001 par value:
Voting, 150,000,000 shares authorized, 29,852,305 shares issued, 25,875,051
shares outstanding at December 31, 1999; 121,798,382 shares authorized,
16,000,000 shares issued, 11,250,502 shares outstanding at March 31, 1999                             30                 16
Non-voting, no shares authorized, issued or outstanding at December 31, 1999;
21,224,364 shares authorized, 4,035,858 shares issued, 3,071,258 shares outstanding
at March 31, 1999                                                                                      -                  4

Additional paid-in capital                                                                        63,252              2,143
Deferred compensation                                                                              (973)            (1,312)
Treasury stock                                                                                  (25,306)           (44,394)
Retained earnings                                                                                 35,154             24,455
                                                                                              ----------         ----------
   Total stockholder's equity (deficit)                                                           72,157           (13,124)
                                                                                              ----------         ----------
   Total liabilities, redeemable convertible common stock and stockholders'equity (deficit)   $   87,554          $  43,974
                                                                                              ==========          =========
</TABLE>
                     The accompanying notes are an integral part of these
                               consolidated financial statements.

                                                                               3
<PAGE>




                             NETSCOUT SYSTEMS, INC.
                        CONSOLIDATED STATEMENT OF INCOME
                      (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                   (UNAUDITED)

<TABLE>
<CAPTION>

                                                      THREE MONTHS ENDED                        NINE MONTHS ENDED
                                                          DECEMBER 31,                             DECEMBER 31,
                                                    1999                1998                 1999                1998
                                                    ----                ----                 ----                ----
<S>                                                <C>                 <C>                  <C>                 <C>
Revenue:
   Product                                         $14,584             $13,327              $40,939             $36,737
   Service                                           3,348               2,172                8,912               6,329
   License and royalty                               4,910               1,972               12,366               5,814
                                                   -------             -------              -------             -------
      Total revenue                                 22,842              17,471               62,217              48,880
                                                   -------             -------              -------             -------
Cost of revenue:
   Product                                           5,389               4,927               15,290              13,614
   Service                                             422                 222                1,242                 838
                                                   -------             -------              -------             -------
      Total cost of revenue                          5,811               5,149               16,532              14,452
                                                   -------             -------              -------             -------

Gross margin                                        17,031              12,322               45,685              34,428
                                                   -------             -------              -------             -------

Operating expenses:
   Research and development                          2,322               1,803                7,022               5,295
   Sales and marketing                               7,370               5,191               20,121              14,726
   General and administrative                        1,334               1,030                3,421               3,058
                                                   -------             -------              -------             -------
      Total operating expenses                      11,026               8,024               30,564              23,079
                                                   -------             -------              -------             -------

Income from operations                               6,005              4,298               15,121              11,349
Interest income, net                                   833                224                1,609                 667
                                                   -------             -------              -------             -------
Income before provision for
      income taxes                                   6,838               4,522               16,730              12,016
Provision for income taxes                           2,467               1,629                6,031               4,327
                                                   -------             -------              -------             -------
Net income                                          $4,371              $2,893              $10,699              $7,689
                                                   =======             =======              =======             =======

Basic net income per share                          $ 0.17              $ 0.15               $ 0.53              $ 0.39
Diluted net income per share                        $ 0.16              $ 0.12               $ 0.40              $ 0.32
Shares used in computing:

      Basic net income per share                    25,796              19,668               20,249              19,568
      Diluted net income per share                  28,154              23,980               26,562              23,792

Pro forma basic net income per share                $ 0.17              $ 0.13               $ 0.44              $ 0.35
Pro forma diluted net income per share              $ 0.16              $ 0.12               $ 0.40              $ 0.32
Shares used in computing:

      Pro forma basic net income per share          25,796              22,194               24,235              22,095
      Pro forma diluted net income per share        28,154              23,980               26,562              23,792

</TABLE>

                     The accompanying notes are an integral part of these
                               consolidated financial statements.


                                                                               4
<PAGE>


                             NETSCOUT SYSTEMS, INC.
                      CONSOLIDATED STATEMENT OF CASH FLOWS
                                 (IN THOUSANDS)
                                   (UNAUDITED)

<TABLE>
<CAPTION>

                                                                                                 NINE MONTHS ENDED
                                                                                                   DECEMBER 31,
                                                                                               1999            1998
                                                                                               ----            ----
<S>                                                                                       <C>              <C>
CASH FLOWS FROM OPERATING ACTIVITIES:

          Net income                                                                       $ 10,699           $7,689
          Adjustments to reconcile net income to net cash provided by
          operating activities:
             Depreciation and amortization                                                    2,006            1,454
             Loss on disposal of fixed assets                                                    49               50
             Compensation expense associated with equity awards                                 339              194
             Deferred income taxes                                                                -            (108)
          Changes in assets and liabilities:
               Accounts receivable                                                          (2,050)          (2,823)
               Inventories                                                                  (1,287)              422
               Refundable income taxes                                                         (87)              708
               Prepaids and other current assets                                            (2,509)               18
               Accounts payable                                                             (1,143)            (316)
               Accrued expenses                                                               1,525              856
               Income taxes payable                                                               -              306
               Customer deposits                                                                  -            (117)
               Deferred revenue                                                               2,078              428
                                                                                              -----              ---
               Net cash provided by operating activities                                      9,620            8,761
                                                                                              -----            -----

CASH FLOWS FROM INVESTING ACTIVITIES:

          Purchase of marketable securities                                                (14,747)                -
          Proceeds from maturity of marketable securities                                     2,000            8,834
          Proceeds from notes receivable                                                      2,000                -
          Purchase of fixed assets                                                          (3,155)          (1,955)
                                                                                            -------          -------
               Net cash provided (used) by investing activities                            (13,902)            6,879
                                                                                           --------            -----

CASH FLOWS FROM FINANCING ACTIVITIES:
          Proceeds from issuance of common stock                                             30,082               43
                                                                                             ------               --

Net increase in cash and cash equivalents                                                    25,800           15,683

Cash and cash equivalents, beginning of year                                                 25,477            6,341
                                                                                             ------            -----
Cash and cash equivalents, end of period                                                  $  51,277        $  22,024
                                                                                          =========        =========

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
          Cash paid for interest                                                        $         5      $         2
          Cash paid for income taxes                                                    $     6,131      $     3,421

</TABLE>

  The accompanying notes are an integral part of these consolidated financial
                                  statements.


                                                                               5
<PAGE>


                             NETSCOUT SYSTEMS, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. BASIS OF PRESENTATION

     The accompanying consolidated financial statements as of December 31, 1999
and for the three and nine months ended December 31, 1999 and 1998 are
unaudited. In the opinion of NetScout's management, the December 31, 1999 and
1998 unaudited interim consolidated financial statements include all
adjustments, consisting of normal recurring adjustments, necessary for a fair
presentation of the financial position and results of operations for that
period. The results of operations for the nine month period ended December 31,
1999 are not necessarily indicative of the results of operations for the year
ended March 31, 2000.

     The balance sheet at March 31, 1999 has been derived from the audited
financial statements at that date but does not include all of the information
and footnotes required by generally accepted accounting principles for complete
financial statements.

     For further information, refer to the consolidated financial statements and
footnotes thereto included in NetScout's Registration Statement on Form S-1, as
amended (No. 333-76843), as filed with the Securities and Exchange Commission.

2. CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

     NetScout considers all highly liquid investments purchased with a maturity
of three months or less to be cash equivalents and those with maturities greater
than three months are considered to be investments. Cash equivalents and
investments are stated at amortized cost plus accrued interest, which
approximates fair value. Cash equivalents and investments consist primarily of
money market instruments and U.S. Treasury bills.

     NetScout accounts for its investments in accordance with Statement of
Financial Accounting Standards ("SFAS") No. 115, "Accounting for Certain
Investments in Debt and Equity Securities." Under the provision of SFAS No. 115,
NetScout has classified its investments as "available-for-sale" and any
associated unrealized gains or losses, if material, are recorded as a separate
component of stockholders' equity until realized. At December 31, 1999 and March
31, 1999, any unrealized gains or losses were immaterial.

3. INVENTORIES

     Inventories consist of the following:

<TABLE>
<CAPTION>

                                        December 31,             March 31,
                                            1999                   1999
                                            ----                   ----

<S>                                        <C>                    <C>
         Raw materials                     $3,718                 $2,620
         Work-in-process                      263                    348
         Finished goods                       471                    197
                                         --------               --------
                                           $4,452                 $3,165
                                           ======                 ======

</TABLE>

4. STOCKHOLDERS' EQUITY

     In August 1999, NetScout completed an initial public offering of 3,000,000
shares of its common stock for net proceeds of $29.6 million after underwriter
commissions and offering expenses. As a result, all issued and outstanding
shares and shares held in treasury of Series A Preferred Stock, Class B
Convertible Common Stock and Non-Voting Common Stock were automatically
converted into 2,526,316, 6,977,254 and 4,062,321 shares, respectively, of
voting common stock.


                                                                               6
<PAGE>

5. NET INCOME PER SHARE

     Basic net income per share is computed by dividing income available to
common stockholders by the weighted average number of shares of common stock
outstanding during the period, excluding shares of common stock subject to
repurchase. Diluted net income per share is computed by dividing income
available to common stockholders by the sum of the weighted average number of
shares of common stock outstanding during the period and the weighted average
number of potential shares of common stock from the assumed exercise of stock
options and shares of common stock subject to repurchase using the "treasury
stock" method and the assumed conversion of Series A Preferred Stock and the
Class B Convertible Common Stock.

6. PRO FORMA NET INCOME PER SHARE

     Pro forma basic and diluted net income per share are computed assuming the
conversion of all shares of Series A Preferred Stock, Class B Convertible Common
Stock and Non-Voting Common Stock into Voting Common Stock, as if the shares had
been converted immediately upon their issuance.

7. GEOGRAPHIC INFORMATION

     Revenue was distributed geographically as follows:

<TABLE>
<CAPTION>

                                               THREE MONTHS ENDED             NINE MONTHS ENDED
                                                   DECEMBER 31,                  DECEMBER 31,
                                                 1999        1998               1999      1998
                                                 ----        ----               ----      ----
<S>                                            <C>            <C>            <C>         <C>
         North America..........               $20,881        $15,557        $54,198     $43,260
         Other international......               1,961          1,914          8,019       5,620
                                                -------       -------        -------     -------
                                                $22,842       $17,471        $62,217     $48,880
                                                =======       =======        =======     =======

</TABLE>

     Substantially all of NetScout's identifiable assets are located in the
United States.

8.       CONTINGENCIES

      In August 1998, a former employee made claims against NetScout and an
employee stockholder and alleged unspecified damages. The former employee filed
a related claim with the Massachusetts Commission Against Discrimination (the
"MCAD") and the Equal Employment Opportunity Commission (the "EEOC") in December
1998. In July 1999, the former employee requested that the claim be withdrawn
from the MCAD and the EEOC so that the claim may be filed in state and/or
federal court. In accordance with this request, the MCAD closed this matter on
July 14, 1999 and the EEOC closed this matter on August 12, 1999. On or about
November 5, 1999, the former employee filed an action in the Superior Court
Department of the Trial Court, Middlesex County. On December 30, 1999, NetScout
filed a Notice of Removal to the United States District Court for the District
of Massachusetts, thereby removing the action to that Court. Based on the
information available to date, NetScout believes that the claim is without merit
and intends to vigorously defend this claim. NetScout has recorded an accrual to
address this matter, however, since this matter is at a preliminary stage,
NetScout is unable to predict the outcome or amount of related expense, or loss,
if any.

     In addition to the matter noted above, from time to time NetScout is
subject to legal proceedings and claims in the ordinary course of business. In
the opinion of management, the amount of ultimate expense with respect to any
other current legal proceedings and claims will not have a material adverse
effect on NetScout's financial position or results of operations.


                                                                               7
<PAGE>


ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS.

     The following information should be read in conjunction with the
consolidated historical financial information and the notes thereto included in
Item 1 of this Quarterly Report on Form 10-Q and Management's Discussion and
Analysis of Financial Condition and Results of Operations contained in our
Registration Statement on Form S-1 as filed with the Securities and Exchange
Commission, as amended (No. 333-76843).

     In addition to the other information in this report, the following
Management Discussion and Analysis should be considered carefully in evaluating
the Company and our business. This Form 10-Q contains forward-looking
statements. These statements relate to future events or our future financial
performance and are identified by terminology such as "may", "will", "could",
"should", "expects," "plans," "intends," "seeks," "anticipates," "believes,"
"estimates," "potential," or "continue" or the negative of such terms or other
comparable terminology. These statements are only predictions. You should not
place undue reliance on these forward-looking statements. Actual events or
results may differ materially. In evaluating these statements, you should
specifically consider various important factors, including the risks outlined
under "Certain Factors Which May Affect Future Results" in this section of this
report and our other filings with the Securities and Exchange Commission. These
factors may cause our actual results to differ materially from any
forward-looking statement.

     Although we believe that the expectations reflected in the forward-looking
statements are reasonable, we cannot guarantee future results, levels of
activity, performance or achievements. We are under no duty to update any of the
forward-looking statements after the date of this Form 10-Q to conform such
statements to actual results.

OVERVIEW

     NetScout designs, develops, manufactures, markets and supports a family of
products that enable businesses and network service providers to manage the
performance of their computer networks and software applications. Our products
include data collection devices, consisting of probes and software agents, which
collect, aggregate and perform detailed analysis of computer network and
application data, and analytical and presentation software, which provides
current network and application performance information in an easy-to-use,
graphical format.

     We were incorporated in 1984 and primarily provided consulting services
until 1992 when we began to develop and market our first computer network
performance management products. Our operations have been financed principally
through cash provided by operations and we have been profitable for each of the
last six years.


                                                                               8
<PAGE>


RESULTS OF OPERATIONS

     The following table sets forth for the periods indicated the percentage of
total revenue of certain line items included in our Statement of Income:

                             NETSCOUT SYSTEMS, INC.
                         STATEMENT OF INCOME PERCENTAGES

<TABLE>
<CAPTION>

                                                       THREE MONTHS ENDED                    NINE MONTHS ENDED
                                                          DECEMBER 31,                          DECEMBER 31,
                                                      1999            1998                   1999            1998
                                                      ----            ----                   ----            ----
<S>                                                 <C>              <C>                    <C>             <C>
Revenue:

  Product                                            63.8%            76.3%                  65.8%           75.2%
  Service                                            14.7%            12.4%                  14.3%           12.9%
  License and royalty                                21.5%            11.3%                  19.9%           11.9%
                                                     -----            -----                  -----           -----
      Total revenue                                 100.0%           100.0%                 100.0%          100.0%
                                                    ------           ------                 ------          ------

Cost of revenue:
  Product                                            23.6%            28.2%                  24.6%           27.9%
  Service                                             1.8%             1.3%                   2.0%            1.7%
                                                      ----             ----                   ----            ----
      Total cost of revenue                          25.4%            29.5%                  26.6%           29.6%
                                                     -----            -----                  -----           -----

Gross margin                                         74.6%            70.5%                  73.4%           70.4%
                                                     -----            -----                  -----           -----

Operating expenses:
  Research and development                           10.2%            10.3%                  11.3%           10.8%
  Sales and marketing                                32.3%            29.7%                  32.3%           30.1%
  General and administrative                          5.8%             5.9%                   5.5%            6.3%
                                                      ----             ----                   ----            ----
      Total operating expenses                       48.3%            45.9%                  49.1%           47.2%
                                                     -----            -----                  -----           -----

Income from operations                               26.3%            24.6%                  24.3%           23.2%
Interest income, net                                  3.6%             1.3%                   2.6%            1.4%
                                                      ----             ----                   ----            ----

Income before provision for income taxes             29.9%            25.9%                  26.9%           24.6%
Provision for income taxes                           10.8%             9.3%                   9.7%            8.9%
                                                     -----             ----                   ----            ----
Net income                                           19.1%            16.6%                  17.2%           15.7%
                                                     =====            =====                  =====           =====

</TABLE>

THREE MONTHS ENDED DECEMBER 31, 1999 AND 1998

REVENUE

     Total revenue increased 31% from $17.5 million for the three months ended
December 31, 1998 to $22.8 million for the three months ended December 31 1999.

     PRODUCT. Product revenue increased 9% from $13.3 million for the three
months ended December 31, 1998 to $14.6 million for the three months ended
December 31, 1999. This increase was primarily due to a 38% increase in average
selling price attributable to larger volumes of higher speed and multi-port
probes.

     SERVICE. Service revenue increased 54% from $2.2 million for the three
months ended December 31, 1998 to $3.3 million for the three months ended
December 31, 1999. This increase was primarily due to an increase in support
agreements attributable to new product sales and an increase in the sale of
support agreements to new and existing customers attributable to increased sales
and marketing efforts.


                                                                               9
<PAGE>


     LICENSE AND ROYALTY. License and royalty revenue increased 149% from $2.0
million for the three months ended December 31, 1998 to $4.9 million for the
three months ended December 31, 1999. The December 31, 1999 license and royalty
revenue includes $818,000 in royalties for the period ended September 30, 1999
that one of our partners did not report until the period ended December 31,
1999. Beyond this, the additional increase in license and royalty revenue was
primarily due to a proportionate growth in unit sales of our software and
embedded software products by Cisco. We anticipate that license and royalty
revenue will decrease in absolute dollars, and as a percentage of total revenue.

COST OF REVENUE AND GROSS MARGIN

     PRODUCT. Cost of product revenue consists primarily of components,
personnel costs, media duplication, manuals, packaging materials, licensed
technology fees and overhead. Cost of product revenue increased 9% from $4.9
million for the three months ended December 31, 1998 to $5.4 million for the
three months ended December 31, 1999. This increase was primarily due to a 35%
increase in the average cost per unit. Product gross margins were 63% for the
three months ended December 31, 1998 and 1999.

     SERVICE. Cost of service revenue consists primarily of personnel costs.
Cost of service revenue increased 90% from $222,000 for the three months ended
December 31, 1998 to $422,000 for the three months ended December 31, 1999. This
increase was primarily due to a 116% increase in personnel costs. Service gross
margins decreased from 90% for the three months ended December 31, 1998 to 87%
for the three months ended December 31, 1999.

     Gross margin increased 38% from $12.3 million for the three months ended
December 31, 1998 to $17.0 million for the three months ended December 31, 1999.
This increase was primarily due to an increase in license and royalty revenue as
a percentage of total revenue.

OPERATING EXPENSES

     RESEARCH AND DEVELOPMENT. Research and development expenses consist
primarily of personnel costs, fees for outside consultants and related costs
associated with the development of new products and the enhancement of existing
products. Research and development expenses increased 29% from $1.8 million for
the three months ended December 31, 1998 to $2.3 million for the three months
ended December 31, 1999. This increase was primarily due to a 33% increase in
personnel costs and a 31% increase in consulting expenses. We anticipate that
research and development expenses will increase in absolute dollars and as a
percentage of total revenues as staffing reaches planned levels.

     SALES AND MARKETING. Sales and marketing expenses consist primarily of
personnel costs and costs associated with marketing programs such as trade
shows, seminars, advertising and new product launch activities. Sales and
marketing expenses increased 42% from $5.2 million for the three months ended
December 31, 1998 to $7.4 million for the three months ended December 31, 1999.
This increase was primarily due to a 36% increase in sales and marketing
personnel costs. We anticipate that sales and marketing expenses will increase
in absolute dollars as we expand our sales force and marketing programs to
support international expansion, increased sales efforts to major accounts,
brand awareness and product launches.

     GENERAL AND ADMINISTRATIVE. General and administrative expenses consist
primarily of personnel costs for executive, financial, information services and
human resource employees. General and administrative expenses increased 30% from
$1.0 million for the three months ended December 31, 1998 to $1.3 million for
the three months ended December 31, 1999. This increase was primarily due to a
12% increase in personnel costs. We expect that our general and administrative
expenses will increase in absolute dollars as we continue to expand our staff to
support expanded operations and facilities and incur expenses relating to our
responsibilities as a public company.

     INTEREST INCOME, NET. Interest income, net of interest expense, increased
272% from $224,000 for the three months ended December 31, 1998 to $833,000 for
the three months ended December 31, 1999. This increase was primarily due to an
increase in our cash balances related to the proceeds from our initial public
offering.


                                                                              10
<PAGE>


     PROVISION FOR INCOME TAXES. The provision for income taxes increased from
$1.6 million for the three months ended December 31, 1998 to $2.5 million for
the three months ended December 31, 1999, primarily due to higher pre-tax
income. Our effective tax rate remained constant at 36% for the three months
ended December 31, 1998 and 1999.

NINE MONTHS ENDED DECEMBER 31, 1999 AND 1998

REVENUE

     Total revenue increased 27% from $48.9 million for the nine months ended
December 31, 1998 to $62.2 million for the nine months ended December 31, 1999.

     PRODUCT. Product revenue increased 11% from $36.7 million for the nine
months ended December 31, 1998 to $40.9 million for the nine months ended
December 31, 1999. This increase was primarily due to a 30% increase in average
selling price attributable to larger volumes of higher speed and multi-port
probes.

     SERVICE. Service revenue increased 41% from $6.3 million for the nine
months ended December 31, 1998 to $8.9 million for the nine months ended
December 31, 1999. This increase was primarily due to an increase in support
agreements attributable to new product sales and an increase in the sale of
support agreements to new and existing customers attributable to increased sales
and marketing efforts.

     LICENSE AND ROYALTY. License and royalty revenue increased 113% from $5.8
million for the nine months ended December 31, 1998 to $12.4 million for the
nine months ended December 31, 1999. This increase was primarily due to a
proportionate growth in unit sales of our software and embedded software
products by Cisco.

COST OF REVENUE AND GROSS MARGIN

     PRODUCT. Cost of product revenue increased 12% from $13.6 million for the
nine months ended December 31, 1998 to $15.3 million for the nine months ended
December 31, 1999. This increase was primarily due to a 27% increase in the
average cost per unit. Product gross margins were 63% for the nine months ended
December 31, 1998 and 1999.

     SERVICE. Cost of service revenue increased 48% from $838,000 for the nine
months ended December 31, 1998 to $1.2 million for the nine months ended
December 31, 1999. This increase was primarily due to a 46% increase in
personnel costs. Service gross margins decreased slightly from 87% for the nine
months ended December 31, 1998 to 86% for the nine months ended December 31,
1999.

     Gross margin increased 33% from $34.4 million for the nine months ended
December 31, 1998 to $45.7 million for the nine months ended December 31, 1999.
This increase was primarily due to an increase in license and royalty revenue as
a percentage of total revenue.

OPERATING EXPENSES

     RESEARCH AND DEVELOPMENT. Research and development expenses increased 33%
from $5.3 million for the nine months ended December 31, 1998 to $7.0 million
for the nine months ended December 31, 1999. This increase was primarily due to
a 35% increase in personnel costs and to a lesser degree a 30% increase in
consulting expenses.

     SALES AND MARKETING. Sales and marketing expenses increased 37% from $14.7
million for the nine months ended December 31, 1998 to $20.1 million for the
nine months ended December 31, 1999. This increase was primarily due to a 29%
increase in sales and marketing personnel costs.

     GENERAL AND ADMINISTRATIVE. General and administrative expenses increased
12% from $3.1 million for the nine months ended December 31, 1998 to $3.4
million for the nine months ended December 31, 1999. This increase was primarily
due to a 25% increase in personnel costs.


                                                                              11
<PAGE>


     INTEREST INCOME, NET. Interest income, net of interest expense, increased
141% from $667,000 for the nine months ended December 31, 1998 to $1.6 million
for the nine months ended December 31, 1999. This increase was primarily due to
an increase in our cash balances related to the proceeds from our initial public
offering.

     PROVISION FOR INCOME TAXES. The provision for income taxes increased from
$4.3 million for the nine months ended December 31, 1998 to $6.0 million for the
nine months ended December 31, 1999, primarily due to higher pre-tax income. Our
effective tax rate remained constant at 36% for the nine months ended December
31, 1998 and 1999.

LIQUIDITY AND CAPITAL RESOURCES

     As of December 31, 1999, we had $51.3 million in cash and cash equivalents
and $12.7 million in short-term investments. Prior to our initial public
offering, we financed our operations through cash provided by operating
activities. On August 17, 1999, we completed our initial public offering of
3,000,000 shares of common stock at a price of $11.00 per share. We received net
proceeds of approximately $29.6 million after underwriter commissions and
offering expenses. We have a line of credit with a bank, which allows us to
borrow up to $5.0 million for working capital purposes and to obtain letters of
credit. The line of credit expires in March 2000. Amounts available under the
line of credit are a function of eligible accounts receivable and bear interest
at the bank's prime rate. At December 31, 1999, we had letters of credit
outstanding under the line aggregating $561,000. The bank line of credit is
secured by our inventory and accounts receivable.

     Cash, cash equivalents and short-term investments were $64.0 million at
December 31, 1999. Cash provided by operating activities was $9.6 million and
$8.8 million for the nine months ended December 31, 1999 and 1998, respectively.
Cash provided by operating activities was primarily derived from net income and
to a lesser degree, increases in depreciation and amortization, accrued expenses
and deferred revenue in each period. This was partially offset by increases in
accounts receivable for the nine months ended December 31, 1999 and 1998,
respectively, and increases in prepaids and other current assets for the nine
months ended December 31, 1999. These changes were due to the growth of our
business.

     Cash used by investing activities was $13.9 million for the nine months
ended December 31, 1999, which reflects the purchase of short-term investments
and, to a lesser degree, fixed assets. Cash provided by investing activities was
$6.9 million for the nine months ended December 31, 1998, which was primarily
due to the maturity of short-term investments, partially offset by the purchase
of fixed assets.

     Cash provided by financing activities was $30.1 million for the nine months
ended December 31, 1999 which is due to the initial public offering proceeds.

     We believe that our current cash balances and the cash flows generated by
operations will be sufficient to meet our anticipated cash needs for working
capital and capital expenditures for the next 12 months. Thereafter, if cash
generated from operations is insufficient to satisfy our liquidity requirements,
we may seek to sell additional equity or convertible debt securities. The sale
of additional equity or debt securities could result in additional dilution to
our stockholders. A portion of our cash may be used to acquire or invest in
complementary businesses or products or to obtain the right to use complementary
technologies. From time to time, in the ordinary course of business, we evaluate
potential acquisitions of such businesses, products or technologies. We have no
current plans, agreements or commitments, and are not currently engaged in any
negotiations with respect to any such transaction.

YEAR 2000 READINESS DISCLOSURE

     Many computers and software products accept only two digit entries in date
fields which could cause problems distinguishing dates after December 31, 1999.
The use of computers and software products that are not year 2000 compliant
could result in system failures or miscalculations causing business disruptions,
including the inability to process transactions, send invoices or perform other
business activities. As a result, many computers and software products may need
to be upgraded or replaced in order to meet year 2000 requirements.


                                       12
<PAGE>


     We believe that we have three general areas of potential exposure with
respect to the year 2000 problem:

- -        our own products;
- -        our internal information systems and equipment-related systems; and
- -        the effects of third party compliance efforts.

     We have completed our review of our products to determine whether they are
year 2000 compliant. As of February 14, 2000 customers have not reported to us
any year 2000 related problems or disruptions with any of our products. In
addition, we are not aware of any year 2000 related problems with any of our
equipment, facilities, or material suppliers. Based on our review, we believe
that our products are year 2000 compliant. However, there can be no assurance
that our products will not interact with non-year 2000 compliant products, which
could cause our products to malfunction. This malfunction could expose us to
claims from our customers or third parties or result in a reduction in market
acceptance of our products and services and increased service costs to us.

     With respect to our internal information systems, we believe our current
financial and accounting systems are year 2000 compliant. We anticipate that our
financial and accounting systems will be upgraded in the first calendar quarter
of 2000 and that such systems will also be year 2000 compliant. All other
internal systems used in our daily operations, including our computers, software
packages, telephones, security systems and shipping systems, have either been
determined to be compliant, have been certified compliant by the commercial
provider or have been tested and upgraded. We believe that our review of our
internal information systems and equipment-related systems is complete. To date,
costs of making our internal information systems and equipment-related systems
year 2000 compliant have not been material and we do not expect any future costs
to be material.

     The third aspect of our year 2000 analysis involves evaluating the year
2000 efforts of third parties, including suppliers and indirect channel
partners. We have evaluated many of these third parties and believe that they
are year 2000 compliant. Failure of our suppliers' systems, however, to operate
properly could require us to incur significant expenses to remedy problems or
replace suppliers. Failure of our indirect channel partners' systems to operate
properly, however, could reduce our revenue from our indirect channel partners.
Problems with our suppliers or indirect channel partners could have a material
adverse effect on our business, operating results and financial condition.

     To date, we have not incurred significant costs in connection with
identifying and evaluating year 2000 issues or complying with year 2000
requirements. We have not experienced any significant year 2000 problems and
have not deferred the release of any of our products or any IT projects as a
result of year 2000 complications. However, we have not used any independent
verification or validation processes to support our assertions regarding year
2000 risks and cost estimates. While we do not expect to incur significant costs
in the foreseeable future, the identification and evaluation process is ongoing
and year 2000 complications are not fully known, therefore, there can be no
assurance that year 2000 errors or defects will not be discovered in our
products or internal software systems. If such errors or defects are discovered,
there can be no assurance that the costs of making such systems year 2000
compliant will not have a material adverse effect on our business, operating
results and financial condition.

     Some of our products are sold to original equipment manufacturers who
incorporate them into their own product offerings. We do not know whether
original equipment manufacturer products incorporating our products are year
2000 compliant. If such original equipment manufacturer products are not year
2000 compliant, their customers could cancel or delay orders which, in time,
would affect the orders that we receive from our original equipment manufacturer
partners. Therefore, the failure of our original equipment manufacturer partners
to be year 2000 compliant could have a material adverse effect on our business,
results of operation and financial condition.

     Under the reasonably likely worst case scenario, our products could
interact with non-year 2000 compliant products, which could cause our products
to malfunction; our indirect channel partners, our customers or we may not be
able to process orders; or our suppliers may not be able to supply us with
critical components needed to make our products.


                                                                              13
<PAGE>
CERTAIN FACTORS WHICH MAY AFFECT FUTURE RESULTS

We do not provide financial performance forecasts. Our operating results and
financial condition have varied in the past and may in the future vary
significantly depending on a number of factors. Except for the historical
information in this report, the matters contained in this report include
forward-looking statements that involve risks and uncertainties. The following
factors, among others, could cause actual results to differ materially from
those contained in forward-looking statements made in this report. Such factors,
among others, may have a material adverse effect upon our business, results of
operations and financial condition.

A REDUCTION IN ORDERS FROM CISCO SYSTEMS, INC. WOULD MATERIALLY ADVERSELY
AFFECT OUR BUSINESS. Our operating results and financial condition for a
particular fiscal period would be materially adversely affected if there
is a substantial reduction in orders from Cisco Systems, Inc. or if we are
unable to complete one or more Cisco orders planned for that period. We
derive a significant portion of our revenue from Cisco, which distributes
some of our products under its private label and incorporates some of our
software in its products. Cisco accounted for 50% of our total revenue for
the nine months ended December 31, 1999 and 49% of our total revenue for the
nine months ended December 31, 1998. Our future performance is significantly
dependent upon Cisco's continued promotion of our products. Cisco has no
obligation to purchase any products from us. Further, we do not control
Cisco's distribution of our products, whether incorporated into Cisco's
products or sold under private label. Finally, Cisco may decide to internally
develop products that compete with our solution or partner with our
competitors or bundle or sell competitors' solutions, possibly at lower
prices. If our relationship with Cisco were terminated or adversely affected
for any reason, our business, operating results and financial condition would
be materially adversely affected.

OUR QUARTERLY OPERATING RESULTS MAY FLUCTUATE. Our quarterly revenue and
operating results are difficult to predict and may fluctuate significantly from
quarter to quarter. Most of our expenses, such as employee compensation and
rent, are relatively fixed in the short term. Moreover, our expense levels are
based, in part, on our expectations regarding future revenue levels. As a
result, if revenue for a particular quarter is below our expectations, we may
not be able to reduce operating expenses proportionately for that quarter, and
therefore this revenue shortfall would have a disproportionately negative effect
on our operating results for that quarter.

Our quarterly revenue may fluctuate as a result of a variety of factors, many of
which are outside our control, including the following:

          -       the market for network and application performance management
                  solutions is in an early stage of development and therefore
                  demand for our solutions may be uneven;
          -       the timing and receipt of orders from customers, particularly
                  Cisco, especially in light of our lengthy sales cycle;
          -       the timing and market acceptance of new products or product
                  enhancements by us or our competitors;
          -       distribution channels through which our products are sold
                  could change;
          -       the timing of hiring sales personnel and the speed at which
                  such personnel become productive;
          -       we may not be able to anticipate or adapt effectively to
                  developing markets and rapidly changing technologies; and
          -       our prices or the prices of our competitors' products may
                  change.

We operate with minimal backlog because our products typically are shipped
shortly after orders are received. Therefore, product revenue in any quarter is
substantially dependent on orders booked and shipped in that quarter and revenue
for any future quarter is not predictable to any degree of certainty. Therefore,
any significant deferral of orders for our products would cause a shortfall in
revenue for that quarter.

OUR RELIANCE ON SOLE SOURCE SUPPLIERS COULD ADVERSELY AFFECT OUR BUSINESS. Many
components that are necessary for the assembly of our probes are obtained from
separate sole source suppliers or a limited group of suppliers. These components
include some of our network interface cards, which are produced for us solely by
SDL Communications, Inc. Our reliance on sole or limited suppliers involves
several risks, including a potential inability to obtain an adequate supply

                                                                              14
<PAGE>


of required components and reduced control over pricing, quality and timely
delivery of components. We do not generally maintain long-term agreements
with any of our suppliers or large volumes of inventory. Our inability to
obtain adequate deliveries or the occurrence of any other circumstance that
would require us to seek alternative sources of these components would affect
our ability to ship our products on a timely basis. This could damage
relationships with current and prospective customers, cause shortfalls in
expected revenue and materially adversely affect our business, operating
results and financial condition.

OUR CONTINUED GROWTH DEPENDS ON OUR ABILITY TO EXPAND OUR SALES FORCE. We must
increase the size of our sales force in order to increase our direct sales and
support our indirect sales channels. Because our products are very technical,
sales people require a long period of time to become productive, typically three
to six months. This lag in productivity, as well as the challenge of attracting
qualified candidates, may make it difficult to meet our sales force growth
targets. Further, we may not generate sufficient sales to offset the increased
expense resulting from growing our sales force. If we are unable to successfully
expand our sales capability, our business, operating results and financial
condition could be materially adversely affected.

OUR SUCCESS DEPENDS ON OUR ABILITY TO EXPAND AND MANAGE INDIRECT DISTRIBUTION
CHANNELS. To increase our sales, we must further expand and manage our indirect
distribution channels, including original equipment manufacturers, distributors,
resellers, systems integrators and service providers. Sales to our indirect
distribution channels accounted for 78% and 82% of our total revenue for the
nine months ended December 30, 1999 and 1998, respectively. Sales to Cisco
accounted for 50% and 49% of our total revenue for the nine months ended
December 31, 1999 and 1998. Our indirect channel partners have no obligation to
purchase any products from us. In addition, they could internally develop
products which compete with our solutions or partner with our competitors or
bundle or resell competitors' solutions, possibly at lower prices. Our inability
to expand and manage our relationships with our partners, the inability or
unwillingness of our partners to effectively market and sell our products or the
loss of existing partnerships could have a material adverse effect on our
business, operating results and financial condition.

IF WE FAIL TO INTRODUCE NEW PRODUCTS AND ENHANCE OUR EXISTING PRODUCTS TO KEEP
UP WITH RAPID TECHNOLOGICAL CHANGE, DEMAND FOR OUR PRODUCTS MAY DECLINE. The
market for network and application performance management solutions is
relatively new and is characterized by rapid changes in technology, evolving
industry standards, changes in customer requirements and frequent product
introductions and enhancements. Our success is dependent upon our ability to
meet our customers' needs, which are driven by changes in computer networking
technologies and the emergence of new industry standards. In addition, new
technologies may shorten the life cycle for our products or could render our
existing or planned products obsolete. If we are unable to develop and introduce
new network and application performance management products or enhancements to
existing products in a timely and successful manner, it would have a material
adverse effect on our business, operating results and financial condition.

WE FACE SIGNIFICANT COMPETITION FROM OTHER TECHNOLOGY COMPANIES. The market for
network and application performance management solutions is intensely
competitive. We believe customers make network management system purchasing
decisions based primarily upon product performance, functionality and price;
name and reputation of vendor; distribution strength; and alliances with
industry partners. We compete with probe vendors, such as Hewlett-Packard
Company, providers of network performance management solutions, such as Concord
Communications, Inc. and Micromuse, Inc., and providers of portable network
traffic analyzers, such as Network Associates, Inc. In addition, leading network
equipment providers could offer their own or competitors' solutions in the
future. Many of our current and potential competitors have longer operating
histories, greater name recognition and substantially greater financial,
management, marketing, service, support, technical, distribution and other
resources than we do. Therefore, they may be able to respond more quickly than
we can to new or changing opportunities, technologies, standards or customer
requirements.

As a result of these and other factors, we may not be able to compete
effectively with current or future competitors, which would have a material
adverse effect on our business, operating results and financial condition.


                                                                              15
<PAGE>

THE SUCCESS OF OUR BUSINESS DEPENDS ON THE CONTINUED GROWTH IN THE MARKET FOR
AND THE COMMERCIAL ACCEPTANCE OF NETWORK AND APPLICATION PERFORMANCE MANAGEMENT
SOLUTIONS. We derive all of our revenue from the sale of products and services
that are designed to allow our customers to manage the performance of computer
networks and software applications. The market for network and application
performance management solutions is in an early stage of development. Therefore,
we cannot accurately assess the size of the market and may be unable to predict
the appropriate features and prices for products to address the market, the
optimal distribution strategy and the competitive environment that will develop.
In order for us to be successful, our potential customers must recognize the
value of more sophisticated network and application performance management
solutions, decide to invest in the management of their networks and the
performance of software applications and, in particular, adopt our management
solutions. Any failure of this market to continue to develop would materially
adversely affect our business, operating results and financial condition.
Businesses may choose to outsource the management of their networks and
applications to service providers. Our business may depend on our ability to
develop relationships with these service providers and successfully market our
products to them.

FAILURE TO PROPERLY MANAGE GROWTH COULD ADVERSELY AFFECT OUR BUSINESS. We have
been experiencing a period of rapid growth over the past several years. We plan
to continue to expand our business by hiring additional personnel. The growth in
size and complexity of our business and our customer base has been and will
continue to be a significant challenge to our management and operations. To
manage further growth effectively we must enhance our financial and accounting
systems and controls, integrate new personnel and manage expanded operations. We
anticipate that our financial and accounting systems will be upgraded in the
first calendar quarter in 2000. If we are unable to successfully integrate these
systems and controls and to effectively manage our growth, our costs, the
quality of our products, the effectiveness of our sales organization, and our
ability to retain key personnel, our business, operating results and financial
condition could be materially adversely affected.

LOSS OF KEY PERSONNEL COULD ADVERSELY AFFECT OUR BUSINESS. Our future success
depends to a significant degree on the skills, experience and efforts of Anil
Singhal, our Chairman of the Board, Chief Executive Officer and co-founder and
Narendra Popat, our President, Chief Operating Officer and co-founder. We also
depend on the ability of our other executive officers and senior managers to
work effectively as a team. The loss of one or more of our key personnel could
have a material adverse effect on our business, operating results and financial
condition.

WE MUST HIRE AND RETAIN SKILLED PERSONNEL IN A TIGHT LABOR MARKET. Qualified
personnel are in great demand throughout the computer software, hardware and
networking industries. The demand for qualified personnel is particularly acute
in the New England area due to the large number of software and high technology
companies and the low unemployment in the region. Our success depends in large
part upon our ability to attract, train, motivate and retain highly-skilled
employees, particularly sales and marketing personnel, software engineers, and
technical support personnel. We have had difficulty hiring and retaining these
highly skilled employees in the past. If we are unable to attract and retain the
highly skilled technical personnel that are integral to our sales, marketing,
product development and customer support teams, the rate at which we can
generate sales and develop new products or product enhancements may be limited.
This inability could have a material adverse effect on our business, operating
results and financial condition.

OUR SUCCESS DEPENDS ON OUR ABILITY TO PROTECT OUR INTELLECTUAL PROPERTY RIGHTS.
Our business is heavily dependent on our intellectual property. We rely upon a
combination of copyright, trademark and trade secret laws and non-disclosure and
other contractual arrangements to protect our proprietary rights. The reverse
engineering, unauthorized copying or other misappropriation of our intellectual
property could enable third parties to benefit from our technology without
compensating us. Legal proceedings to enforce our intellectual property rights
could be burdensome and expensive and could involve a high degree of
uncertainty. In addition, legal proceedings may divert management's attention
from growing our business. There can be no assurance that the steps we have
taken to protect our intellectual property rights will be adequate to deter
misappropriation of proprietary information, or that we will be able to detect
unauthorized use by third parties and take appropriate steps to enforce our
intellectual property rights. Further, we also license software from third
parties for use as part of our products, and if any of these licenses were to
terminate, we may experience delays in product shipment until we develop or
license alternative software.

                                                                              16
<PAGE>


OTHERS MAY CLAIM THAT WE INFRINGE ON THEIR INTELLECTUAL PROPERTY RIGHTS. We may
be subject to claims by others that our products infringe on their intellectual
property rights. These claims, whether or not valid, could require us to spend
significant sums in litigation, pay damages, delay product shipments, reengineer
our products or acquire licenses to such third-party intellectual property. We
may not be able to secure any required licenses on commercially reasonable terms
or secure them at all. We expect that these claims will become more frequent as
more companies enter the market for network and application performance
management solutions. Any of these claims or resulting events could have a
material adverse effect on our business, operating results and financial
condition.

IF OUR PRODUCTS CONTAIN ERRORS, THEY MAY BE COSTLY TO CORRECT, REVENUE MAY BE
DELAYED, WE COULD GET SUED AND OUR REPUTATION COULD BE HARMED. Despite testing
by us and our customers, errors may be found in our products after commencement
of commercial shipments. If errors are discovered, we may not be able to
successfully correct them in a timely manner or at all. In addition, we may need
to make significant expenditures of capital resources in order to eliminate
errors and failures. Errors and failures in our products could result in loss of
or delay in market acceptance of our products and could damage our reputation.
If one or more of our products fails, a customer may assert warranty and other
claims for substantial damages against us. The occurrence or discovery of these
types of errors or failures could have a material adverse effect on our
business, operating results and financial condition.

OUR SUCCESS DEPENDS ON OUR ABILITY TO EXPAND AND MANAGE OUR INTERNATIONAL
OPERATIONS. Sales outside North America accounted for 13% and 11% of our total
revenue for the nine months ended December 31, 1999 and 1998, respectively. We
currently expect international revenue to continue to account for a significant
percentage of total revenue in the future. We believe that we must continue to
expand our international sales activities in order to be successful. Our
international sales growth will be limited if we are unable to expand
international indirect distribution channels, hire additional sales personnel,
adapt products for local markets, or manage geographically dispersed operations.
The major countries outside of North America in which we do, or intend to do,
business are the United Kingdom, Germany and Japan. Our international
operations, including our operations in the United Kingdom, Germany and Japan,
are generally subject to a number of risks, including failure of local laws to
provide the same degree of protection against infringement of our intellectual
property, protectionist laws and business practices that favor local
competitors, dependence on local indirect channel partners, multiple conflicting
and changing governmental laws and regulations, longer sales cycles, greater
difficulty in collecting accounts receivable, foreign currency exchange rate
fluctuations and political and economic instability.

OUR BUSINESS MAY BE AFFECTED BY UNEXPECTED YEAR 2000 PROBLEMS. Many existing
computer systems and software products do not properly recognize dates after
December 31, 1999. This year 2000 problem could result in miscalculations, data
corruption, system failures or disruptions of operations. Our products, our
internal systems, our customers' systems, our distributors' systems and our
suppliers' systems may experience year 2000 problems, any of which could have a
material adverse effect on our business, operating results and financial
condition. Under the reasonably, likely worst case scenario our products could
interact with non-year 2000 compliant products, which could cause our products
to malfunction, our indirect channel partners, our customer or we may not be
able to process orders, or our suppliers may not be able to supply us with
critical components needed to make our products.

Year 2000 errors or defects in our products could give rise to warranty and
other claims by our customers. In addition, there can be no assurance that year
2000 errors or defects will not be discovered in our internal software systems
and, if errors or defects are present, there can be no assurance that the costs
of making such systems year 2000 compliant will not be material. If we are
unable to make our products and internal systems year 2000 compliant in a timely
manner, our business, operating results and financial condition could be
materially adversely affected.

Changing purchasing patterns of customers impacted by year 2000 issues may
result in reduced purchases of our solutions. Any year 2000 errors or defects
in our distributors' systems or the products of our original equipment
manufacturer partners could cause a reduction in their orders to us. Finally,
year 2000 errors or defects in the internal systems of our suppliers,
including our sole and limited source suppliers, could require us to incur
significant unanticipated expense to remedy any problems or replace affected
vendors and could cause cancellations or delays in product shipments.

                                                                              17
<PAGE>


THE PRICE OF OUR COMMON STOCK MAY DECREASE DUE TO MARKET VOLATILITY. The stock
market in general has recently experienced extreme price and volume
fluctuations. In addition, the market prices of securities of technology
companies have been extremely volatile and have experienced fluctuations that
often have been unrelated or disproportionate to the operating performance of
these companies. These broad market fluctuations could adversely affect the
market price of our common stock.

Recently, when the market price of a stock has been volatile, holders of that
stock have occasionally instituted securities class action litigation against
the company that issued the stock. If any of our stockholders brought such a
lawsuit against us, even if the lawsuit is without merit, we could incur
substantial costs defending the lawsuit. The lawsuit could also divert the time
and attention of our management.

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     We consider all highly-liquid investments purchased with a maturity of
three months or less to be cash equivalents and those with maturities greater
than three months are considered to be investments. Cash equivalents and
investments are stated at amortized cost plus accrued interest, which
approximates fair value. Cash equivalents and investments consist primarily of
money market instruments and U.S. Treasury bills. We currently do not hedge
interest rate exposure, but do not believe that an increase in interest rates
would have a material effect on the value of our investments.

     On January 1, 1999, eleven of the existing members of the European Union
joined the European Monetary Union. Ultimately there will be a single currency
within certain countries of the European Union, known as the Euro, and one
organization, the European Central Bank, responsible for setting European
monetary policy. We have reviewed the impact the Euro will have on our business
and whether this will give rise to a need for significant changes in our
commercial operations or treasury management functions. Because our transactions
are denominated in U.S. dollars, we do not believe that the Euro conversion will
have any material effect on our business, financial condition or results of
operations.

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS.

In August 1998, a former employee made claims against NetScout and an employee
stockholder and alleged unspecified damages. The former employee filed a related
claim with the Massachusetts Commission Against Discrimination (the "MCAD") and
the Equal Employment Opportunity Commission (the "EEOC") in December 1998. In
July 1999, the former employee requested that the claim be withdrawn from the
MCAD and the EEOC so that the claim may be filed in state and/or federal court.
In accordance with this request, the MCAD closed this matter on July 14, 1999
and the EEOC closed this matter on August 12, 1999. On or about November 5,
1999, the former employee filed an action in the Superior Court Department of
the Trial Court, Middlesex County. On December 30, 1999, NetScout filed a Notice
of Removal to the United States District Court for the District of
Massachusetts, thereby removing the action to that Court. Based on the
information available to date, NetScout believes that the claim is without merit
and intends to vigorously defend this claim. NetScout has recorded an accrual to
address this matter, however, since this matter is at a preliminary stage,
NetScout is unable to predict the outcome or amount of related expense, or loss,
if any.

In addition to the matter noted above, from time to time NetScout is subject to
legal proceedings and claims in the ordinary course of business. In the opinion
of management, the amount of ultimate expense with respect to any other current
legal proceedings and claims will not have a material adverse effect on
NetScout's financial position or results of operations.

ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS.

On August 17, 1999, we completed our initial public offering of 3 million shares
of common stock at a price of $11.00 per share. The principal underwriters for
the transaction were Deutsche Banc Alex. Brown, Bear, Stearns & Co. Inc. and
Dain Rauscher Wessels, a division of Dain Rauscher Incorporated. The
registration statement relating to this offering was declared effective by the
Securities and Exchange Commission (SEC File Number 333-76843) on August 11,
1999. The aggregate offering price of the initial public offering of our


                                                                              18
<PAGE>


securities to the public was $33.0 million. We received proceeds of $30.7
million after deducting $2.3 million in underwriting discounts and
commissions. We also incurred $1.1 million in other offering expenses. The
net proceeds we received after deducting underwriting discounts and
commissions and other offering expenses was approximately $29.6 million.

Upon the exercise of the over allotment option by the underwriters, certain
selling security holders sold 450,000 shares of common stock for net proceeds of
approximately $4.6 million after deducting underwriting discounts and
commissions.

To date, we have not utilized any of the net proceeds from our initial public
offering. We have invested all such net proceeds primarily in US Treasury
obligations and other interest bearing investment grade securities.

From September 1, 1999 to December 31, 1999, NetScout issued 181,335 shares of
Common Stock for an aggregate purchase price of $276,495 pursuant to the
exercise of stock options. No underwriters were involved in the sale of such
securities. These sales were made in reliance upon an exemption from the
registration provisions of the Securities Act set forth in Rule 701 under the
Securities Act. These securities are deemed restricted securities for purposes
of the Securities Act.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

(a)      Exhibits

         The following exhibits are filed or incorporated by reference as part
         of this Report.

         10.1*    Amendment No. 5 effective as of December 26, 1999 to Private
                  Label Agreement and Project Development and License Agreement
                  between Cisco Systems, Inc. and NetScout Systems, Inc.
         11.1     Statement re Computation of Per Share Earnings
         27.1     Financial Data Schedule

(b)      Reports on Form 8-K
         None

* Confidential treatment requested pursuant to Rule 24b-2 of the Securities
Exchange Act of 1934


                                                                              19
<PAGE>


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                             NetScout Systems, Inc.

                                             /S/ ANIL SINGHAL
                                             -----------------------------------
Date: February 14, 2000                      Name: Anil Singhal
                                             Title: Chairman of the Board, Chief
                                             Executive Officer and Treasurer

                                             NetScout Systems, Inc.

                                             /S/ LISA FIORENTINO
                                             -----------------------------------
Date: February 14, 2000                      Name: Lisa Fiorentino
                                             Title: Vice President, Finance and
                                             Chief Accounting Officer


                                                                              20
<PAGE>





                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT NUMBER                      DESCRIPTION

<S>                                 <C>
10.1*                               Amendment No. 5 effective as of December 26,
                                    1999 to Private Label Agreement and Project
                                    Development and License Agreement between
                                    Cisco Systems, Inc. and NetScout Systems,
                                    Inc.

11.1                                Statement re Computation of Per Share
                                    Earnings

27.1                                Financial Data Schedule
</TABLE>

* Confidential treatment requested pursuant to Rule 24b-2 of the Securities
Exchange Act of 1934


                                                                              21

<PAGE>

                               AMENDMENT NO. 5 TO
                             PRIVATE LABEL AGREEMENT
                                       AND
                    PROJECT DEVELOPMENT AND LICENSE AGREEMENT
                                     BETWEEN
                               CISCO SYSTEMS, INC.
                                       AND
                             NETSCOUT SYSTEMS, INC.

         This Amendment No. 5 ("Amendment #5"), having an Effective Date of Dec
26, 1999, is made by and between Cisco Systems, Inc., a California corporation
having its principal place of business at 170 West Tasman Drive, San Jose, CA
95134-1706, U.S.A. ("Cisco"), and NetScout Systems, Inc., (Formerly known as
Frontier Software Development, Inc.) a Delaware corporation having its principal
place of business at 4 Technology Park Drive, Westford, Massachusetts 01886
("NetScout").

         WHEREAS, Cisco and NetScout entered into the Project Development and
License Agreement on July 13, 1994 ("Software Agreement"), a Private Label
Agreement on October 17, 1995 ("Hardware Agreement") and four amendments dated
January 4, 1995 ("Amendment #1"), May 15, 1996 ("Amendment #2"), October 29,
1996 ("Amendment #3"), and Feb 23, 1998 ("Amendment #4"), collectively the
"Agreement"; and

         WHEREAS, Cisco and NetScout desire to change and add certain terms to
the Agreement as specified below.

         NOW THEREFORE, in consideration of the covenants and conditions
contained herein, the parties agree as follows:

1.0      DEFINITIONS.

         All defined terms shall have the meaning as defined in the Agreement
except that terms defined herein shall have the meaning as defined in this
Amendment #5.

"Applications" shall mean, collectively, all NetScout RMON and other management
and monitoring application programs shipped to Cisco as Products (see Section 1
of Amendment #2) under the Agreement, including but not limited to,
TrafficDirector and TrafficScout. SwitchProbes, RMON Agents, and Embedded Agents
are not considered Applications.

"CWSI-LAN Bundle" shall mean a Cisco LAN management product that includes one or
more Cisco LAN management applications, and specifically includes the NetScout
TrafficScout Application or the Cisco version of NetScout's NetScout Manager
Plus Application known as TrafficDirector as a bundled component. In the event
that the parties choose to include additional NetScout Applications within the
CWSI-LAN Bundle, the parties shall negotiate in good faith to establish royalty
payments and other terms and conditions relating to the inclusion of these
additional Applications to this bundle.

"Effective Date" as used herein shall mean the Effective Date of this Amendment
#5.

"First Customer Shipment (FCS)" shall mean first shipment for revenue of a new
release of a product by Cisco per Cisco's then existing new product release
process.


Cisco Systems Confidential Information                                    Page 1

[*] INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED MATERIAL HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24b-2 PROMULGATED UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.
<PAGE>

"Strategic Feature Set" shall mean one or more product features, as agreed to by
the parties, for which Cisco shall pay an incremental royalty for Products that
incorporate such feature set.

"WAN Bundle" shall mean a Cisco WAN (Wide Area Networking) management product
that includes one or more Cisco WAN management applications, and specifically
includes the NetScout TrafficScout Application or the Cisco version of
NetScout's NetScout Manager Plus Application known as TrafficDirector as a
bundled component. In the event that the parties choose to include additional
NetScout Applications within the WAN Bundle, the parties shall negotiate in good
faith to establish the royalty payments and other terms and conditions relating
to the inclusion of these additional Applications to this bundle.

2.0      TERM EXTENSION.

         The term of the Agreement is hereby extended to October 31, 2002.
Thereafter, this Agreement shall be automatically renewed for additional
successive one (1) year periods, unless written notice of non-renewal is
received by the other party no later than ninety (90) days prior to the
expiration of the then current term

3.0      ROYALTIES.

         (a) CWSI-LAN Bundle Royalties. Notwithstanding anything to the contrary
in the Agreement, the royalty for each unit of the CWSI-LAN Bundle shipped for
revenue by Cisco, but excluding units shipped pursuant to Cisco's customer
support contract obligations for CWSI-LAN products (which are covered under the
maintenance fees in Section 4.0 below and except as provided in subsection (b)
below), shall be as follows:

              (i)   Beginning on the Effective Date, the base royalty for the
                    CWSI-LAN Bundle shall be [*] per unit.

              (ii)  Thereafter the base royalty shall be reduced [*] per unit
                    for units shipped after the start of the seventh (7th)
                    complete Cisco fiscal month after the Effective Date and
                    shall be reduced an additional [*] per unit for units
                    shipped at each successive six (6) month interval
                    thereafter, provided however that the minimum base royalty
                    (exclusive of incremental royalties for Strategic Features)
                    shall be [*] per unit.

              (iii) The royalty shall be increased above the then current base
                    royalty by [*] per unit for each Strategic Feature Set
                    incorporated within the for CWSI-LAN Bundle.

         (b) CWSI-LAN Bundle Upgrades. Cisco shall pay a one-time upgrade fee of
[*] per unit to upgrade a customer who had previously licensed a Cisco product
containing TrafficDirector to the CWSI-LAN Bundle containing TrafficScout.

         (c) WAN Bundle Royalties. Notwithstanding anything to the contrary in
the Agreement, the royalty for each unit of the WAN Bundle shipped for revenue
by Cisco, but excluding units shipped pursuant to Cisco's support contract
obligations (which are covered under the maintenance fees in Section 4.0 below),
shall be as follows:

              (i)   Beginning at FCS for the first commercial release of the WAN
                    Bundle accepted by Cisco the base royalty shall be [*] per
                    unit.


Cisco Systems Confidential Information                                    Page 2

[*] INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED MATERIAL HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24b-2 PROMULGATED UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.
<PAGE>

              (ii)  Beginning at the start of the thirteenth (13th) complete
                    Cisco fiscal month after FCS the base royalty shall be [*]
                    per unit.

              (iii) Beginning at the start of the nineteenth (19th) complete
                    Cisco fiscal month after FCS the base royalty shall be [*]
                    and shall continue at this level.

              (iv)  The royalty shall be increased above the then current base
                    royalty by [*] per unit for each Strategic Feature Set
                    incorporated within the for WAN Bundle.

         (d) WAN Bundle Upgrades. Cisco shall have no obligation to pay an
upgrade fee or any other royalty, for units of WAN Bundle shipped by Cisco
pursuant to its obligations under support contracts, to upgrade customers who
had previously purchased the WAN Bundle including TrafficDirector to a WAN
Bundle which includes TrafficScout.

         (e) Other Application Royalties. Notwithstanding anything to the
contrary in the Agreement, except as provided for the CWSI-LAN Bundle and WAN
Bundle herein, and excluding units shipped pursuant to Cisco's support contract
obligations, Cisco shall pay a royalty of [*] of the then existing NetScout [*]
for its comparable product for each unit of an Application shipped for revenue
by Cisco.

4.0      MAINTENANCE FEES.

         Beginning on the Effective Date, Cisco shall pay NetScout a
consolidated maintenance fee of [*] per Cisco fiscal quarter for all maintenance
activity relating to all Applications hereunder. (First quarter shall be paid on
a pro rata basis.) Such maintenance fee shall be paid within 45 days after the
completion of each Cisco fiscal quarter. At the beginning of the fifth complete
Cisco fiscal quarter after the Effective Date, the maintenance fee shall be
increased to [*]. Thereafter, at yearly intervals, the parties shall review the
maintenance activity to determine the appropriate maintenance fee for the next
four Cisco fiscal quarters. In the event the parties cannot agree upon a new
maintenance fee, the maintenance fee shall increase by [*] at each annual
anniversary of the first increase.

         Notwithstanding anything to the contrary in the Agreement, except for
the upgrade payments pursuant to Section 3 (b) herein, after the Effective Date,
Cisco shall not be obligated to pay per-unit maintenance fees or royalties for
units of Applications shipped as updates or upgrades pursuant to Cisco's product
support obligations (including but not limited to, SAS Software Application
Support, SASU, Software Application Support with Upgrades, SMARTnet). It is the
intent of the parties that the maintenance fees per this Section 4 shall
constitute the sole and total maintenance fees payable by Cisco to NetScout for
Applications.

5.0      YEAR 2000.

         (a) Year 2000 Warranty. NetScout hereby represents and warrants to
Cisco that the occurrence in or use by the Product of dates before, on or after
January 1, 2000 ("Millennial Dates") will not adversely affect its performance
with respect to date-dependent data, computations, output, or other functions
(including, without limitation, calculating, comparing and sequencing) and that
the Product will create, store, process and output information related to or
including Millennial Dates without error or omissions and at no additional cost
to Cisco. The Product includes calendar year 2000 date conversion and
compatibility capabilities, including, but not limited to, date data century
recognition, same century and multiple century formula and date value
calculations, and user interface date data values that reflect the century, and
that the Product will (i) manage and manipulate data involving dates, including
single century and multiple century dates (including proper handling of leap
year), and will not cause an abnormal abend or abort or result in the generation
of incorrect values or invalid output involving such dates; and (ii)


Cisco Systems Confidential Information                                    Page 3

[*] INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED MATERIAL HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24b-2 PROMULGATED UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.
<PAGE>

include the indication of the correct century in all date-related user interface
functionalities; (iii) include the indication of the correct century in all
date-related system-to-system or application-to-application data interface
functionalities; and (iv) respond to two-digit year-date input in a way that
resolves the ambiguity as to century in a disclosed, defined, and predetermined
manner.

         (b) Compliance with Year 2000 Specification. The parties agree that for
a Product to comply with the warranty in Section 5(a) above, the Product must
pass all relevant tests conducted by Cisco per Cisco's then existing Year 2000
Specification which Cisco applies for all of its products.

6.0      CHANGES AND CANCELLATIONS.

         Section 4.5 of the Hardware Agreement shall be deleted and replaced in
its entirety with the following:

"4.5     Cancellations and Reschedules

Prior to the delivery of any item, Cisco may notify NetScout in writing of its
intent to cancel the order for the Products. Written notice may be provided via
e-mail. Such emails must be sent to Robert Massad at the email address of
[email protected], Tracy Steele at the email address of [email protected]
and Tom Hill at the email address of [email protected]. It is solely up to
NetScout to notify Cisco of any changes to this list of people to be notified in
the case of a cancellation notification.

Cisco shall have the right to cancel orders or portions of orders per the terms
herein, and subject to the cancellation charges per the "NetScout/Cisco -
Maximum Cancellation Charges" table below, provided the aggregate Cisco purchase
price of units cancelled is limited to [*] per calendar quarter. Additional
cancellations, which exceed the [*], will be reviewed and agreed upon by Cisco
and NetScout on a case by case basis. NetScout may not unreasonably withhold
acceptance of the cancellation request. In the event that Cisco requests
additional cancellations, NetScout shall not add value to nor ship any Product
subject to the cancellation request. Cisco and NetScout shall have the right to
request a mutually agreed upon third party auditor to settle any cancellation
disputes.

In the event that Cisco cancels additional quantity of Product, Cisco shall be
liable for time, materials, reasonable markups on components or WIP that is not
sellable, by NetScout, within 120 days of cancellation. As a part of this
overall settlement, but not in addition to it, Cisco shall prepay the charges
outlined in "NetScout/Cisco - Maximum Cancellation Charges" table. In the event
that Cisco chooses to cancel additional quantities of Product, Cisco shall be
liable for time, materials, reasonable markups on any components or WIP that is
not sellable, by NetScout, within 120 days of cancellation or for the
cancellation charges outlined in the "NetScout/Cisco Maximum Cancellation
Charges" table below, whichever is greater. NetScout and Cisco will work
together to use commercially reasonable efforts to mitigate the cancellation
costs. A claim by NetScout for cancellation charges shall be limited to the
reasonable markups previously referred to and the actual, documented costs
incurred by NetScout related to the canceled portion of the purchase order,
including, only to the extent that any components, materials and other inventory
cannot be used in any of NetScout's non-Cisco products, as follows: (i)
NetScout's cost of component inventory for the terminated portion of the
purchase order(s), (ii) NetScout's cost of work in process materials including
manufacturing operations completed at the time of cancellation for the canceled
portion of Cisco's purchase order, and (iii) reasonable cancellation charges
incurred by NetScout from component suppliers for the canceled portion of
Cisco's purchase order. Cisco and NetScout shall have the right to request a
mutually agreed upon third party auditor to settle any component cost issues.


Cisco Systems Confidential Information                                    Page 4

[*] INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED MATERIAL HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24b-2 PROMULGATED UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.
<PAGE>

                  NETSCOUT/CISCO - MAXIMUM CANCELLATION CHARGES

<TABLE>
<S>                                                 <C>
Notice prior to Scheduled Delivery Date*            Cancellation Charge
Greater than 15 days                                         [*]
11 to 15 days                                                [*]
6 to 10 days                                                 [*]
3 to 5 days                                                  [*]
</TABLE>

*Due date at Cisco's dock

Cisco may reschedule the delivery of all or any portion of Products ordered
under a purchase order or modify the delivery locations provided that NetScout
has received written notice at least [*] working days prior to the due date at
Cisco's dock. Cisco may reschedule the delivery of Product up to 120 days from
the original delivery date without incurring cancellation charges. NetScout may
charge Cisco an inventory-carrying cost for Product rescheduled thirty (30)
calendar days or more past the original purchase order date. Carrying cost shall
not exceed [*] of Cisco purchase price of the Product for each full thirty (30)
day period past the original purchase order [delivery] date."

7.0      ON-TIME PERFORMANCE.

         NetScout's on-time performance shall be measured as [*] early, [*] days
late. Cisco has the right to cancel any late product providing that the order
was placed within the normal lead time parameters ** and expedited service is
not requested** .

All other terms and conditions of the Agreement remain in full force and effect
except as modified herein by Amendment #5.

IN WITNESS WHEREOF, the parties have caused this Amendment to be executed by
their duly authorized representatives effective as of the last date given below.

CISCO SYSTEMS,  INC.                        NETSCOUT SYSTEMS, INC.


/s/ Jeff Krause                             /s/ Anil K. Singhal
- --------------------------------            --------------------------------
Signature                                   Signature

Jeff Krause                                 Anil K. Singhal
- --------------------------------            --------------------------------
Name                                        Name

VP & GM, EMBU                               Chairman & CEO
- --------------------------------            --------------------------------
Title                                       Title


Cisco Systems Confidential Information                                    Page 5

[*] INDICATES MATERIAL THAT HAS BEEN OMITTED AND FOR WHICH CONFIDENTIAL
TREATMENT HAS BEEN REQUESTED. ALL SUCH OMITTED MATERIAL HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO RULE 24b-2 PROMULGATED UNDER THE
SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.

<PAGE>


                                  EXHIBIT 11.1
                             NETSCOUT SYSTEMS, INC.
                 STATEMENT RE COMPUTATION OF PER SHARE EARNINGS
                                   (UNAUDITED)

Below is a summary of the shares used in computing basic and diluted net income
per share for the periods indicated.

<TABLE>
<CAPTION>
                                              THREE MONTHS ENDED          NINE MONTHS ENDED
                                                DECEMBER 31,                 DECEMBER 31,

                                                 1999         1998         1999         1998
                                                 ----         ----         ----         ----
<S>                                           <C>          <C>          <C>          <C>
Weighted average number of shares
outstanding ...............................   25,796,397   19,668,172   20,249,284   19,568,493
Shares attributable to Class B Convertible
Common Stock ..............................         --           --      3,374,454         --
Shares attributable to Series A Preferred
Stock .....................................         --      2,526,316      610,910    2,526,316
Shares attributable to unvested Non-Voting
Common Stock ..............................         --        126,250         --        155,075
Stock options .............................    2,357,949    1,659,726    2,327,330    1,542,181
                                              ----------   ----------   ----------   ----------
Shares used in computing diluted net income
per share .................................   28,154,346   23,980,464   26,561,978   23,792,065
                                              ==========   ==========   ==========   ==========
</TABLE>


Below is a summary of the shares used in computing pro forma basic and diluted
net income per share for the periods indicated.

<TABLE>
<CAPTION>
                                               THREE MONTHS ENDED          NINE MONTHS ENDED
                                                 DECEMBER 31,                 DECEMBER 31,

                                                  1999         1998         1999         1998
                                                  ----         ----         ----         ----
<S>                                            <C>          <C>          <C>          <C>
Weighted average number of shares
outstanding ................................   25,796,397   19,668,172   20,249,284   19,568,493
Shares attributable to Class B Convertible
Common Stock ...............................         --           --      3,374,454         --
Shares attributable to Series A Preferred
Stock ......................................         --      2,526,316      610,910    2,526,316
                                               ----------   ----------   ----------   ----------
Shares used in computing pro forma basic net
income per share ...........................   25,796,397   22,194,488   24,234,648   22,094,809
Shares attributable to unvested Non-Voting
Common Stock ...............................         --        126,250         --        155,075
Stock options ..............................    2,357,949    1,659,726    2,327,330    1,542,181
                                               ----------   ----------   ----------   ----------
Shares used in computing pro forma diluted
net income per share .......................   28,154,346   23,980,464   26,561,978   23,792,065
                                               ==========   ==========   ==========   ==========
</TABLE>


For both diluted net income per share and pro forma diluted net income per
share, stock options to purchase 57,652 for the three months ended December 31,
1998 (unaudited) and 20,072 and 94,429 shares of Non-Voting Common Stock for the
nine months ended December 31, 1999 and 1998 (unaudited), respectively, were
outstanding at period end but were not included in the computation of diluted or
pro forma diluted net income per share because the exercise prices of the
options were greater than the average fair value of the common stock for the
respective period.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEET AND CONSOLIDATED STATEMENT OF INCOME.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                 <C>                     <C>                  <C>                <C>

<PERIOD-TYPE>                   12-MOS               3-MOS                3-MOS               9-MOS              9-MOS

<FISCAL-YEAR-END>                      MAR-31-1999          MAR-31-2000          MAR-31-1999        MAR-31-2000         MAR-31-1999

<PERIOD-START>                         APR-01-1998          OCT-01-1999          OCT-01-1998        APR-01-1999         APR-01-19
98
<PERIOD-END>                           MAR-31-1999          DEC-31-1999          DEC-31-1998        DEC-31-1999         DEC-31-1998

<CASH>                                      25,477               51,277                    0                  0
 0
<SECURITIES>                                     0               12,747                    0                  0                   0

<RECEIVABLES>                                7,586                9,625                    0                  0
 0
<ALLOWANCES>                                 1,036                1,025                    0                  0                   0

<INVENTORY>                                  3,165                4,452                    0                  0
 0
<CURRENT-ASSETS>                            37,426               81,906                    0                  0                   0

<PP&E>                                       8,505               11,462                    0                  0
 0
<DEPRECIATION>                               4,278                6,135                    0                  0                   0

<TOTAL-ASSETS>                              43,974               87,554                    0                  0
 0
<CURRENT-LIABILITIES>                       12,937               15,397                    0                  0                   0

<BONDS>                                          0                    0                    0                  0
 0
                            0                    0                    0                  0                   0

                                  5,964                    0                    0                  0
 0
<COMMON>                                    44,181                   30                    0                  0                   0

<OTHER-SE>                                (43,563)               36,973                    0                  0
 0
<TOTAL-LIABILITY-AND-EQUITY>                43,974               87,554                    0                  0                   0

<SALES>                                          0               14,584               13,327             40,939              36,7
37
<TOTAL-REVENUES>                                 0               22,842               17,471             62,217              48,880

<CGS>                                            0                5,389                4,927             15,290              13,6
14
<TOTAL-COSTS>                                    0                5,811                5,149             16,532              14,452

<OTHER-EXPENSES>                                 0               11,026                8,024             30,564              23,0
79
<LOSS-PROVISION>                                 0                    0                    0                  0                   0

<INTEREST-EXPENSE>                               0                    0                    0                  0
 0
<INCOME-PRETAX>                                  0                6,005                4,298             15,121              11,349

<INCOME-TAX>                                     0                2,467                1,629              6,031               4,3
27
<INCOME-CONTINUING>                              0                    0                    0                  0                   0

<DISCONTINUED>                                   0                    0                    0                  0
 0
<EXTRAORDINARY>                                  0                    0                    0                  0                   0

<CHANGES>                                        0                    0                    0                  0
 0
<NET-INCOME>                                     0                4,371                2,893             10,699               7,689

<EPS-BASIC>                                      0                 0.17                 0.15               0.53                0.
39
<EPS-DILUTED>                                    0                 0.16                 0.12               0.40                0.32



</TABLE>


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