FD Technologies Regulatory News (FDP)

First Derivatives plc (the "Company")

(AIM:FDP.L, IEX:GYQ.I)

Total Voting Rights

In accordance with the Financial Services Authority's Disclosure and Transparency Rules, the total number of ordinary shares of 0.5p each in the capital of the Company in issue as at the date of this notice is 15,667,726 with each share carrying the right to one vote.

The above figure of 15,667,726 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in the Company, under the Disclosure and Transparency Rules.

30 June 2010

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