The second major question is whether the Santa Claus rally really even exists. Again, looking at the historical performance of the S&P 500 over the last two decades, we conclude that it is nearly a toss-up between a tangible rally and a normal trading week. Volatility profiles based on trailing-three-year calculations of the standard deviation… P A.V.Es 25th annual Stop the Violence back-to-school rally is underway this weekend olvasásának folytatása