Centrosim Utilizes Orc Technology for Automated Trading and Risk Management

For Immediate Release: Milan, ITALY: Wednesday 5 March 2008– Orc Software(SSE: ORC), the leading global provider of technology for advanced derivatives trading and connectivity solutions, today announced Italian investment firm and established Orc Software customer, Centrosim, is utilizing Orc technology for its single platform, automated trading and risk management solution.

Centrosim is utilizing Orc Trading technology tools including Orc Trader and via Orc Connect, market connections for the Italian Derivatives Market (IDEM), Italian Stock Exchange (MTA), Securitised Derivatives Exchange (SeDeX), and the Mercato Alternativo del Capitale (MAC). Plans are also underway for non-membership market access via Orc Connect to SEB for the major European and North American financial markets (Euronext.liffe, Eurex and CME-CBOT).

“Orc Software provides the powerful and reliable trading, risk management and market access infrastructure to drive our business forward,” says Mr Enrico Rugo, Head of Operations Direction at Centrosim. “Over time Orc has satisfied our demands and proven the trading and risk management capabilities of the Orc Trader solution. Through Orc Connect we will now leverage a liquidity access solution that delivers all the benefits of fast, reliable connectivity for non-market-members.”

"We are pleased Centrosim continues to utilize Orc Trader for pricing and quoting sophisticated products," says Matteo Carcano, Orc Software’s President for Western Europe. "Orc Trading meets the highest market demands for pricing and risk management on electronically traded derivatives, while providing competitive edge to trade from a single platform, on any listed instrument, cross-asset class, on 100+ markets.”

Orc Trading and Orc Connect provide customers with the tools for making the best trading and connectivity decisions... strong analytics, unmatched market access, powerful automated trading functionality, high performance futures and options trading capabilities, ultra-low latency, and risk management.

Orc Connect provides traders and brokers with fast, reliable access to liquidity pools, both for market members and non-members, in the critical areas of execution, market data and reference data.

Orc’s customers include leading worldwide investment banks, trading and market-making firms, exchanges, brokerage houses, institutional investors and hedge funds.

Orc Software is next exhibiting at the FOW Conference in London April 8 & 9, 2008.

About Orc Software’s revenue model
This agreement follows Orc’s licensing subscription model to give customers access to the software, new versions and support as long as the agreement is valid. Customers are invoiced quarterly in advance and revenue allocated to the invoicing period.

About Orc Software
Orc Software (SSE: ORC) is the leading global provider of powerful solutions for the worldwide financial industry in the critical areas of advanced derivatives trading and low latency connectivity. Orc’s competitive edge lies in its depth of knowledge of the derivatives trading world gained by deploying advanced solutions for sophisticated traders for over 20 years.

Orc Trading and Orc Connect provide the tools for making the best trading and connectivity decisions… strong analytics, unmatched market access, powerful automated trading functionality, high performance futures and options trading capabilities, ultra-low latency, and risk management.

Orc’s customers include leading investment banks, trading and market-making firms, exchanges, brokerage houses, institutional investors and hedge funds.

Orc provides timely sales and quality support services from its offices across EMEA, Americas and Asia Pacific.

www.orcsoftware.com

For further information:
Matteo Carcano, +39 02 8058 071
Annie Walsh, + 44 20 7942 0950