Subscribe to receive this FREE daily commentary directly in your email Please leave this field empty What a strange day. Overnight futures were sharply lower, with the Nasdaq down more than 1.5% at one point and clear signs of nervousness in global markets. Yet all of that anxiety disappeared almost immediately once the cash session opened. The S&P 500 erased an overnight decline of roughly 1% and finished the day higher by about 20 basis points.Those cheap 6,900-strike call options expiring today may hav ...