Orc Software AB – Interim report January 1 – September 30, 2005

January-September 2005 ·Revenue SEK 200 (186) million ·Operating income SEK 14 (29) million ·Operating margin 7.1 (15.4) percent ·Income after taxes SEK 12 (21) million ·Earnings per share SEK 0.86 (1.57) July-September 2005 ·Revenue SEK 65 (58) million ·Operating income SEK 6 (4) million ·Operating margin 8.4 (7.2) percent ·Income after taxes SEK 5 (3) million ·Earnings per share SEK 0.33 (0.27) Significant events · New financial targets: - Orc Software should achieve an annual revenue growth of at least 15 percent and an annual operating margin of at least 15 percent in the medium term - The company is overcapitalized and the capital structure will be reviewed ·Agreement with OMX regarding development of a new front office product

For further information please contact: Jonas Lindström, CEO, tel: +46 8 407 38 35 Lars Johansson, EVP and COO, tel: +46 8 407 38 24 Susanne Holmlund, Investor Relations, tel: +46 8 407 38 50

About Us

Orc is the global market leader in trading technology for listed derivatives. Building on our commitment to long term partnerships and technology innovation that delivers results, Orc serves the trading and electronic execution needs of clients worldwide. Leading trading firms, market makers, banks and brokers depend on Orc to provide robust solutions that deliver concrete value, ensuring that they achieve their business goals in the world's increasingly dynamic and competitive markets. With nearly 200 customer sites in more than 30 countries, access to over 150 trading venues and offices in each of the world's key financial centers, we offer true global capabilities. Combining our technology and financial industry expertise, including a solid understanding of regulatory issues, Orc also provides expert advice and services that help reduce complexity and cost, while enabling clients to stay focused on value creation in their core businesses. Orc is owned by Orc Group Holding AB which in turn is owned mainly by Nordic Capital Fund VII. www.orc-group.com

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