arbitrage

Mr. Boesky brought an aggressive style to the once-sleepy world of arbitrage, the buying and selling of stocks in companies that appear to be takeover targets.

Treasuries market would reduce liquidity risks associated with a popular hedge fund arbitrage trading strategy that could strain the broader financial markets if it unravels abruptly, said Moody's.

"Today's rule would crack down on one avenue for regulatory arbitrage by ensuring large technology firms and other nonbank payments companies are subjected to appropriate oversight," he said.

“Today’s rule would crack down on one avenue for regulatory arbitrage by ensuring large technology firms and other nonbank payments companies are subjected to appropriate oversight.”

Treasuries futures this year as part of the so-called 'basis trade', a leveraged arbitrage play profiting from price differences between cash bonds and futures.