Interdealer rankings 2009: Brokers

The collapse of Lehman Brothers last year triggered unprecedented volatility across asset classes, a blowing out of credit spreads, and the rescue of key financial institutions by governments across the globe. In response to the crisis, regulators are slowly working their way through an impressive agenda of regulatory fine-tuning, covering everything from central clearing of over-the-counter derivatives to higher regulatory capital charges. But despite all this change over the past 12 months