Bespoke (
Mar 28, 2022) - On a trailing 12-month basis, the S&P 500 has performed poorly on Mondays and Tuesdays before gaining steam from Wednesday through Friday. This diverges from the patterns seen over the last thirty years, in which Thursday and Friday struggled relative to the performance over the first three trading days of the week. This year, oil has averaged gains on every day of the week, but the strongest performance has occurred early in the week, which is interesting as Monday and Tuesday have tended to be the worst days of the week for oil over the last 30 years. Bonds have performed poorly in the beginning of the week over the last twelve months but have partially recovered in the last two trading days. Over the long run, the safe asset has traded narrowly with only Wednesdays averaging a loss. Tuesdays and Thursdays have been strong days for the US Dollar over the last twelve months, but these days tend to result in flat to negative performance when looked at over the last 30 years.
Below we summarize the cumulative performance by weekday for the S&P 500 over the last 30 years. As you can see, Tuesday has been the best performing day by far, booking performance gains of 160.5%. Wednesday has posted a cumulative gain of 83.6%, which lands the day in second place. Friday and Thursday have been the weakest days, booking a cumulative gain of just 27.4% and 28.2%, respectively. Monday lands in the middle, recording a cumulative gain of 41.3%. As outlined above, the recent shift in weekday performance deviates from the norms of the last 30 years as investors have come out of the weekend with fears but concluded the week with optimism.
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