London - 3 March 2008

Reuters (LSE: RTR; NASDAQ: RTRSY) today launched its Reuters Latency Monitor (RLM) to meet growing demand for monitoring the speed or latency at which market data is delivered. RLM offers customers continuous monitoring of system latency in real time with the ability to generate alerts if the speed of the data falls.

The product allows Reuters customers to understand the exact amount of network delay between the origination of market data and its delivery to their trading applications. This is vital for algorithmic trading applications in particular, which capitalize on the fleeting opportunities created in high-velocity markets where the timely use of data is essential.

Measurements can be made right across a network or focused on specific areas within it. The monitoring is passive and causes no additional strain on the network and needs no modifications to the existing Reuters Market Data System (RMDS).

Terry Roche, Executive Vice President, Head of Strategic Business, Reuters, said; “Reuters customers need to know that their trading applications are getting data at the high speeds they need to trade effectively. If this speed falls for any reason, RLM will alert users instantaneously so that they can adjust their trading method immediately. Reuters Latency Monitor will give them the vital insight they need on the speed at which data is reaching them on a second-to-second basis.”

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