US policy makers on May 16 moved to boost oversight of the $13 trillion treasury market, taking steps to better monitor a market that is the world’s most liquid, but also remains much more opaque than trading for stocks and other types of bonds.

The Treasury Department and Securities and Exchange Commission said they are requesting a Wall Street watchdog create a data feed the government will be able to use to track treasury trades. No such centralised reporting currently exists for Treasury trades, unlike those of corporate and municipal debt that brokers must report in near real-time.