Ibrahim al Zaabi, deputy chief executive of the Emirates Securities and Commodities Authority (SCA) has unveiled plans to introduce a set of rules by the end of the year aimed at tightening the regulation of financial markets, The National has reported. The new rules will cover trading on margins, market making and short selling. "We're discussing with the market to see the mechanism so that the tools are available at the market," he said. Once the talks are complete, the SCA will submit the proposals to its board, he added.