The Last Minute Ramp Job Dissected

How do you prevent a 5% drop in a month (which as Credit Trader points out is precisely what the last minute ramp achieved)? A reader explains:

approx 175k ESU0 traded between 3:59 and 4:00 - $9.1B notional.  in the 16 minutes between 3:59 and 4:15 just under 300k contracts traded total (12% of full day / overnight volume --- 200% of the previous 5 trading days) for total of $15B notional

And now you know. Beginning tomorrow, the stock market will open at 3:59 pm and close at 4:15 pm . Traders rejoice as this will open up whole new unexplored avenues to kill time during the day with trips to Scores and Baltusrol.