Financial advisors and market strategists usually warn their clients that the market's performance in the past is not a reliable guide for its future moves. But when Citi's Tom Fitzpatrick and his team overlaid the current chart of the benchmark S&P 500 with the index in 1987 — right before the crash — they got "the chills." On October 19, 1987, the Dow Jones Industrial Average suffered its biggest daily percentage loss, erasing 22.6% of its value. The S&P 500 also crashed. Fitzpatrick is a top strategist at Citi, and studies charts of trading patterns to forecast changes in the stock market. Besides the ... (full story)