Patterns, Predictions, and the Correlation Fairy

In November 2009 I noticed a pattern—the S&P 500 index was tracing out a pattern that was uncannily similar to the S&P chart exactly six years previous.   In the four years from April 2009 through April 2013 the average difference between the S&P 500’s closing value for the same day 6 years previous was 3% and the yearend values were within 1.6%.  Using this correlation I …

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