In a replay of yesterday, Morgan Stanley advertised 30 million SPY shares traded at 6:42 pm. Curiously UBS also posted a significant accumulation block, larger than yesterday's, and indicative of some serious Prime Broker activity.
Whether this was merely ETF creation by the good folks at MS or some much more serious ongoing problems at PDT it is still unclear... Or at least until M/N and L/S quant desks have to report month end numbers. Not surprisingly DB is nowhere to be found: maybe that has something to do with the fact that their quants will soon be following in the quiet footsteps of Boaz Weinstein.
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