Regulatory bodies on both sides of the Atlantic will be busy in 2012 finalising rules on one of the most important requirements for bringing pre- and post-trade transparency to the over-the-counter derivatives markets by ensuring prices are posted to a wide variety of market participants, not just among dealers. Initially set by the G-20 leaders at their Pittsburgh Summit in September 2009 and later adopted in reform packages in the US and Europe, transparency would be achieved through the requirements that “all standardised OTC derivatives contracts should be traded on exchanges or electronic trading platforms, where appropriate, and cleared through central counterparties by end-2012 at the latest.”