March Almanac & Vital Stats: Stronger in Midterm Years
By: Christopher Mistal & Jeffrey A. Hirsch
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February 17, 2022
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As part of the Best Six/Eight Months, March has historically been a solid performing month with DJIA, S&P 500, NASDAQ, Russell 1000 & 2000 all advancing more than 62% of the time with average gains ranging from 0.6% by NASDAQ to 1% by S&P 500. Over the recent 21-year period, March has tended to open well with gains accumulating over its first three trading days. Temporary weakness follows before moving modestly higher into mid-month through month’s end.
 
Julius Caesar failed to heed the famous warning to “beware the Ides of March” but investors have been served well when they have. Stock prices have a propensity to decline, sometimes rather precipitously, during the latter days of the month. In March 2020, DJIA plunged nearly 4012 points (-17.3%) during the week ending on the 20th. Removing the highly volatile March’s of 2009 and 2020 from the recent 21-year chart has a minimal effect on the overall monthly pattern. 
 
[Recent 21-Year March Seasonal Pattern Chart]
 
March packs a rather busy docket. It is the end of the first quarter, which brings with it Triple Witching and an abundance of portfolio maneuvers from The Street. March Triple-Witching Weeks have been quite bullish in recent years. But the week after is the exact opposite, DJIA down 22 of the last 34 years—and frequently down sharply. In 2018, DJIA lost 1413 points (–5.67%) Notable gains during the week after for DJIA of 4.88% in 2000, 3.06% in 2007, 6.84% in 2009, 3.05% in 2011 and 12.84% in 2020 are the rare exceptions to this historically poor performing timeframe. 
 
Normally a solid performing market month, March improves in midterm-election years (see Vital Statistics table below). In midterm years March ranks: 4th best for DJIA and S&P 500 and 3rd best for NASDAQ and Russell 1000 while he small-cap Russell 2000 lands at second best. DJIA, S&P 500, Russell 1000 and 2000 have been up for five of the last six midterm Marchs.
 
[Midterm Year March Performance]
 
Saint Patrick’s Day is March’s sole recurring cultural event. Gains on Saint Patrick’s Day have been greater than the day before and the day after. Perhaps it’s the anticipation of the patron saint’s holiday that boosts the market and the distraction from the parade down Fifth Avenue that causes equity markets to languish. Or maybe it’s the fact that Saint Pat’s usually falls in historically bullish Triple-Witching Week. 
 
Whatever the case, since 1950, the S&P 500 posts an average gain of 0.27% on Saint Patrick’s Day (or the next trading day when it falls on a weekend), a gain of 0.03% the day after and the day before averages a 0.07% advance. S&P 500 median values are 0.17% on the day before, 0.23% on Saint Patrick’s Day and 0.01% on the day after. In the ten years when St. Patrick’s Day falls on a Thursday, like this year, since 1950, the day before (Wednesday) produced an average gain of 0.03%, while Thursday averaged 0.38% and Friday averaged 0.15%.
 
[March Vital Stats Table]