Futures Markets Saw Trading Spike Before Trump’s Iran Post

(Bloomberg) -- Futures for oil and stocks worth billions of dollars changed hands just 15 minutes before a social media post from US President Donald Trump sent crude prices tumbling and equities soaring.Contracts corresponding to at least 6 million barrels of Brent and West Texas Intermediate were sold in the two minutes from 6:49 a.m. in New York on Monday, according to exchange data compiled by Bloomberg. The average for the same time period over the previous five trading days was about 700 l