The U.S. oil futures market was rocked at the start of this week as a growing glut of supply and weak demand put fund managers and retail investors in the position of potentially having to take possession of thousands of barrels of crude that they would not be able to store anywhere. TD Ameritrade told customers it would only allow closing trades in June and July U.S. crude futures contracts as well as in all U.S. crude options contracts. Two other brokerages, London-based Marex Spectron and INTL FCStone, said they were limiting new positions being taken up after the high-volatility trading on Monday delivered big losses to holders of that contract.
