Leading Swedish securities firm expands Orc Trading platform

Leading Swedish securities firm expands Orc Trading platform

- Erik Penser Bankaktiebolag implements Orc Liquidator to support advanced
algorithmic trading strategies

Stockholm, SWEDEN, Wednesday October 1, 2008 - Orc Software (SSE: ORC), the
leading global provider of technology for advanced derivatives trading and
connectivity solutions, today announced that leading Swedish securities firm
Erik Penser Bankaktiebolag, has selected an Orc Trading solution based on Orc
Liquidator to support the firm's growing algorithmic trading operations. Erik
Penser Bankaktiebolag already relies on Orc for its DMA offering, as well as for
proprietary trading. The order was booked in Q2, 2008.

A member of the Stockholm, Copenhagen and Helsinki exchanges, Erik Penser
Bankaktiebolag is an independent and privately owned securities firm that is
rapidly expanding its range of services. Erik Penser Bankaktiebolag conducted
extensive testing of Orc Liquidator before its production go-live
implementation. The new Orc Trading solution enables Erik Penser Bankaktiebolag
to conduct cash and derivatives trading with access to the OMX Nordic markets,
and to global markets through Neonet.

”Our traders are very satisfied with the tools and the overall working
environment provided by Orc, as well as Orc's unrivalled connectivity offering
for accessing global markets,” said Johan Wattenström, Head of trading, Erik
Penser Bankaktiebolag. ”Going forward with Orc Liquidator, we can implement
state-of-the-art algorithmic trading while developing custom trading strategies
to give our clients an edge in time-critical trading on volatile markets.”

“We are very pleased that Erik Penser Bankaktiebolag in strong competition again
has selected Orc to support their growing needs for electronic trading
solutions,” said Peter O Bäck, Sales Director, Nordic Region, Orc Software.
“Erik Penser Bankaktiebolag also shows that smaller and mid-sized firms are just
as determined as the major financial players to make use of advanced algorithmic
trading strategies that can only be realized using sophisticated technology and
low latency market connections.”
Orc Trading provides the competitive edge to trade from a single platform
capable of running thousands of complex trading strategies simultaneously. Orc
Trading is used by financial firms worldwide for enhanced trading, pricing and
risk management on electronically traded derivatives.

About Orc Software's revenue model
Standard agreements follow Orc's licensing subscription model, a flexible
approach designed to streamline the customer onboarding process and provide ease
of access to software updates, together with a mature support framework.
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, please contact Orc Software:
Peter O Bäck, Sales Director, Nordic Region, Tel. +46 8 506 477 69
Christine Blinke, Investor Relations and Marketing Director, Tel. + 46 739 01 02
01