Force the grand bears marging selling above spx 1968
is almost a sure bet. The reason is simple, what if yellen doesn't issue QE5 or any QE after QE3/4? That means this could be "the top" if no more QE (only yellen knows). So GS has to margin out the most near death bears above 1968 "now". Unless GS pretty sure yellen will issue QE5 to keep pump up the stock market, then there is no rush. Since yellen keep talk about when the rate hike (first soon, then near term, now after mid 2015), QE5 may not be in her mind and not a sure bet yet.
Based on bernanke logic, QE5 is a sure bet. So I still expectv a E5 under yellen. But GS won't make such a gamble.