In what is sure to prove a disappointment to EMT and SLP purists, Goldman this week managed to trade a mere 859 million principal PT shares, or just under 6x its combined facilitiation and agency volume. What is this - amateur hour at the New York Plaza? What is more peculiar is the dramatic drop in overall NYSE Program trading: from 3,741 million shares in the prior week to 3,265 million in the most recent week. But as Goldman goes, so does the market, it has been whispered.

Then again, last week's dramatic drop in overall market volume may have something to do with the reduction in NYSE PT. And vice versa.