Hey Jason, have a question on another article and wasn't sure how to contact you. This is in regards to an Aug 2012 piece on S&P 500 Sigma Events. In it, you mentioned that Oct 13, 2008 was a 11.82 SD move. The S&P was at 899 the previous day and the VIX was at 70 indicating that a 104 pt, move the next day was approx. 3.2 SD. Where am i going wrong? Thanks, Tano