'Limit down' curbs triggered as S&P 500 futures drop 5%
S&P 500 futures have extended their fall, hitting trading curbs meant to calm excessively sharp moves, as rising odds that Donald Trump will clinch the US presidency shook global financial markets.
S&P 500 e-mini futures traded electronically on the CME Group’s exchange tumbled 5 per cent in early trading on Wednesday. That left them so-called “limit down”, triggering a mechanism put in place to halt panicky selling.
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