OPNET Technologies Reports First Fiscal Quarter 2001 Results

Washington, DC – August 9, 2000 -- OPNET Technologies, Inc. (NASDAQ:OPNT), today announced financial results for the quarter ended June 30, 2000. OPNET reported revenues of $6.4 million for the first fiscal quarter of 2001. This compares to $3.9 million for the same period last year.

For the first three months of fiscal 2001, the Company realized net income of $224,000, or basic and diluted net income per share of $0.02. This compares to net income of $132,000, or basic and diluted net income per share of $0.01 for the comparable period in fiscal year 2000.

On August 1, 2000, the Company's registration statement for its initial public offering of 4.0 million shares of common stock became effective and the offering was priced with an initial public offering price of $13 per share. The offering closed on August 7, 2000, yielding proceeds of approximately $46,860,000, after deducting underwriting discounts and commissions and estimated offering expenses payable by the Company. The underwriters for the offering also exercised their over-allotment option to purchase an additional 600,000 shares which closed on August 9, 2000, raising an additional $7,254,000 in net proceeds to the Company. The lead manager for the offering was Morgan Stanley Dean Witter and the co-managers were Robertson Stephens and Friedman Billings Ramsey.

About OPNET Technologies, Inc.

The OPNET family of intelligent network management software enables our customers to optimize the performance and maximize the availability of communications networks and networked applications. The OPNET product suite combines predictive simulations and a comprehensive understanding of networking technologies to enable network professionals to more effectively design and deploy networks, diagnose network and application performance problems, and predict the impact of proposed network modifications.

The statements contained in this press release that are not purely historical are forward-looking statements within the meaning the Private Securities Litigation Reform Act of 1995, as amended, including statements regarding OPNET Technologies Inc.'s expectations, beliefs, intentions, or strategies regarding the future. All forward-looking statements included in this document are based upon information available to OPNET Technologies, Inc. as of the date hereof; OPNET Technologies, Inc. assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. For a discussion of such risks and uncertainties, see the Company's reports filed with the Securities & Exchange Commission, including its amended Form S-1, declared effective by the SEC on August 1, 2000.

Note to editors: The word OPNET is spelled with all upper-case letters.

OPNET Technologies, Inc.
Consolidated Statements of Operations
(unaudited)

OPNET Technologies, Inc.
Consolidated Balance Sheets
(in thousands)

OPNET Media Contact:
Margarita Castillo
OPNET Technologies, Inc.
(240) 497-3000
Media@opnet.com
www.opnet.com

OPNET Investor Relations:
Mel Wesley
OPNET Technologies
(240) 497-3000
ir@opnet.com
www.opnet.com