The current bull market, which began in March 2009, has been uncommonly durable, running for 128 months and counting. In the post-World War II era, there have been 12 bull markets, which have lasted 60 months on average in comparison. Multiple times, this bull market has come close to meeting the 20% decline threshold said to indicate the end of a bull run. Since 2009, there have been six significant corrections that do not quite earn “bear market” designation. Two missed by a whisker. These corrections have only acted to rewind the valuation spring, attract sideline investors who had been intimidated by high valuations, and generally extend the bull market’s effective life.