Compared to pre-crisis days, there have been undeniable advances in OTC derivatives (over-the-counter) management. Markets that were once controlled by a handful of firms who kept a tight grip on market information as rich bid-ask spreads and transaction costs were codified in a relationship-based trading environment have changed. There have been numerous market innovations, particularly in interest rate markets, notes Greenwich Associates in a report out Tuesday. But challenges also remain in credit default swaps (CDS), total return swaps (TRS), corporate bond market and other venues that trade debt-related products.

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