LSEdefends high-freq traders

The boss of the London Stock Exchange (LSE) has spoken out for high-frequency traders, the market speculators who have come under fire in the US for exacerbating market volatility in the credit crunch. Xavier Rolet has said he values the traders as they provide much-needed liquidity to the market. &ldquo;They are a source of liquidity and we do not rank any particular source of liquidity higher than any other,&rdquo; he told the Financial Times. <br />