PRESS RELEASE

StreamBase and Vhayu Announce Shared Customer Deployment

Partnership delivers real solutions to critical trading issues

LOS GATOS, CA and LEXINGTON, MA — November 10, 2008 — Vhayu and StreamBase today announced that the technology partnership between their firms to enable the testing and deployment of trading strategies has resulted in success for their shared customer, RBC Capital Markets, which now benefits from the integration of the products to provide real-time and historical market data storage and analysis, and back-testing for trading strategies.

Vhayu Velocity™ provides a source to supply historical market data to back-test trading strategies implemented using the StreamBase Event Processing platform.  Raw and aggregated time series data captured by Vhayu Velocity is fed into StreamBase as a way to identify and verify the most effective trading strategies from a historical perspective.  The successful strategies can then be rapidly deployed in the live market using StreamBase. The result is a solution that combines StreamBase’s ultra low-latency and high performance complex event processing (CEP) with Vhayu’s enterprise class market data storage and analysis, allowing the testing of years of market tick data with very low-latency.

“The integration between Vhayu and StreamBase gives firms the flexibility, time to market, and performance needed in these volatile times,” Vhayu CEO Jeff Hudson said. “Our StreamBase partnership allows firms such as RBCCM to rapidly devise algorithmic and quantitative strategies, which may require months to years of tick data to discover past patterns that may predict existing or future trading conditions without adding large amounts of latency.”

“In their recent report, “The World According to Quants: Enter Alpha Generation Platforms”, the AITE Group reported that certain trading algorithms have a shelf-life of less than 3 months,” said StreamBase CEO Mark Palmer. “By partnering with Vhayu, we not only let firms like RBCCM get to market quickly with new algorithms, we help them stay ahead and evolve those strategies in days, rather than months or years required by custom development techniques.”

About StreamBase
StreamBase Systems, Inc, a leader in high-performance Complex Event Processing (CEP), provides software for rapidly building systems that analyze and act on real-time streaming data for instantaneous decision-making. StreamBase’s Event Processing Platform™ combines a rapid application development environment, an ultra low-latency high-throughput event server, and the broadest connectivity to real-time and historical data. Leading investment banks, hedge funds, and government agencies use StreamBase to power mission-critical applications that increase revenue, lower costs, and reduce risk. The company is headquartered in Lexington, Massachusetts. For more information, visit www.streambase.com.

About Vhayu
Vhayu delivers the fastest market data solutions for the capture and high-speed analysis of massive amounts of streaming and historical data, to the world's leading financial institutions. Through its unique patented Velocity and Squeezer technologies, Vhayu combines software and hardware to provide significant competitive advantages to financial firms concerned with the processing and storage of tick data by enabling faster and smarter trading decisions. Partnered with some of the world’s leading technology and financial services organizations, Vhayu's customers include 8 of the top 10 global financial institutions, the leading online discount broker, the largest financial information provider, major hedge funds and trading systems vendors.

Vhayu was founded in 1998 by Intel technologists who brought together over twenty years of experience architecting high performance hardware and software solutions. Headquartered in Silicon Valley, the company also has offices in New York, London and Tokyo. For more information, visit http://www.vhayu.com.