A Quick Look At Secular Bull and Bear Markets

 | Sep 01, 2015 12:29AM ET

Was the March 2009 low the end of a secular bear market and the beginning of a secular bull? At this point, six years later, the S&P 500 has set an inflation-adjusted record high based on monthly averages of daily closes.

Let's examine the past to broaden our understanding of the range of historical trends in market performance. An obvious feature of this inflation-adjusted series is the pattern of long-term alternations between up-and down-trends. Market historians call these "secular" bull and bear markets from the Latin word saeculum "long period of time" (in contrast to aeternus "eternal" — the type of bull market we fantasize about).