Corvil Teams With International Securities Exchange (ISE) to Deliver Real-Time Latency Monitoring and Transparency for New Options Trading System

CorvilNet and CorvilClear Solutions to be Deployed to Benchmark Latency of Optimise(TM) Trading Architecture and Measure Low-Latency Member Access

LONDON and NEW YORK, May 3, 2011 - Corvil, a provider of latency management systems for high
performance trading and market data, today announced that the International
Securities Exchange (ISE) is deploying Corvil's latency management solutions
for full monitoring and reporting of latency throughout its new options
trading system running on Deutsche Borse Group's Optimise(TM) architecture.
Corvil will be used to benchmark and manage internal system latencies as well
as monitor and measure latency between ISE members and the new trading
system.

CorvilNet will meet ISE's need for a latency management solution
that can handle both the network and application layers in a single platform.
It was critical for ISE to find a system that could measure and report
latency in real-time for all order transaction flows and market data feeds
while also managing all aspects of network speed and performance
simultaneously. CorvilNet's unified approach enables immediate identification
of the source and root-cause of latency whether it is in the application
layer or the network layer. The scale and performance requirements for ISE's
options trading system present a new level of challenge for latency
monitoring systems with transaction and message processing volumes reaching
multiple millions per second. The CorvilNet platform is uniquely capable of
handling these volume levels while offering nanosecond precision visibility
to latency on every packet, message and transaction.

"With the launch of Optimise, ISE's new, best-in-class trading
system is positioned at the forefront of the highly competitive U.S. options
industry. Demonstrating the true latency performance of our system and
assuring the lowest latency access for our members is critical. In teaming
with Corvil, we have selected a trusted brand and product that will enable
ISE to offer our members the highest levels of latency transparency and
performance predictability available on an options market," said ISE's Chief
Information Officer, Daniel Friel.

ISE's members will now be able to take advantage of CorvilClear,
a real-time interparty latency management solution between the exchange and
its members. The CorvilClear latency peering engine allows members to
establish latency channels for continuous real-time measurement of order
flow, market data feeds and network connectivity latency between the member
site and ISE. CorvilClear facilitates rapid troubleshooting of latency issues
between both parties due to the increased levels of latency transparency and
use of a common tool suite.

"Optimise is a highly innovative trading architecture that pushes
the boundaries of speed and performance. With these new systems, market
participants need to see continuous and precise measurements of actual
experienced speed and performance throughout the trading day such that
assumptions within their trading strategies can be de-risked and optimized.
We are delighted that ISE has selected our CorvilNet and CorvilClear
solutions to assure and provide this capability," said Corvil CEO, Donal
Byrne.

Corvil

Corvil is a provider of Unified Latency Management systems to the world's
leading trading organizations including global banks, exchanges, electronic
market makers and services providers to financial markets. The company was
founded in 2000 and operates from New York, London and Dublin. Customers use
Corvil for precision monitoring, troubleshooting and reporting of performance
for their trading applications and networks. In addition, Corvil's products
are used to demonstrate latency compliance and transparency of services such
as co-location, direct feeds and Direct Market Access (DMA) offered to
trading clients. For more information on Corvil, please visit
www.corvil.com

CONTACT: Collette Bird, E-mail: collette.bird at corvil.com, Phone: +353-1-859-1040