This transaction is known as a buyout agreement. For the party who sells the security and agrees to buy it back in the future, this is a deposit; For the party at the other end of the transaction that buys the security and agrees to sell in the future, this is a reverse support agreement. Beginning in late 2008, the Fed and other regulators introduced new rules to address these and other concerns. The impact of these regulations has included increased pressure on banks to maintain their safest assets, such as treasuries. .