The US regulator will propose a rule next month on overseeing third-country CCPs.
Deutsche Börse's post-trade services provider is buying a managed funds services business.
Securities Financing Transaction Regulation is due to go live next April.
If approved by the SEC, it would be the 15th or 16th US stock exchange.
Customers in OTC interest rate derivatives clearing increased by 50% in the last six months.
Non-volume related revenue was 47% of total group proceeds.
The shorter contract will allow management of exposures for interest rate and curve shape moves.
The extended trading phase will enable transactions at an already-established closing price.
Nasdaq has supplied the real-time platform which is part of a multi-year project.