I don't know why, but some investors consider Goldman Sachs a leading market indicator. In fact, there is a saying "as goes Goldman, so goes the market" (check out this 2009 Bespoke post on the subject). So let's take a look at how GS's stock price correlated to the S&P500 in the last five years:
GS "predicted the 2009 market low and 2010 "flash crash". Obviously, the stock has been underperforming in recent months. Will the S&P follow?
I would be careful with the conclusion since two incidents are statistically insignificant. It will be interesting to see, though, if "Dr. Goldman" is right this time.