There are a couple of points of interest. For one, earnings growth has tended to peak in the 20 to 40% range and trough somewhere in the -10 to -20% range. At least that was the case up until this millennium. Since the dot-com crash (i.e. the 2001 – 2002 timeframe), earnings growth volatility has increased dramatically.
Today’s chart illustrates rallies that followed massive bear markets. For today’s chart, a ‘massive’ bear market is defined as a decline of greater than 50%. Since the Dow’s inception in 1896, there have been only three bear markets whereby the Dow declined more than 50% (early 1930s, late 1930s until early 1940s, and during the recent financial crisis).