Marketmind: A delta-driven drop

After an August in which stock markets have repeatedly hit record highs, the mood music turned decisively more sombre on Thursday, led by a late slump in U.S. stocks which cascaded into already jittery Asian markets.

CME denies media report of $16 bln takeover bid for rival Cboe

CME Group Inc (CME.O), the world’s biggest futures exchange operator, on Wednesday denied a media report that it approached rival Cboe Global Markets Inc (CBOE.Z), home to the VIX volatility index, with a $16 billion all-share takeover offer.