The S&P 500 has posted gains during the first three trading days of May in 19 of the past 28 years.
Weakness often
emerges around the May 6 (Wed), May 8-12 (Fri-Tue), and after May 18 (Mon). The final four days usually post solid gains (May
26-29, Tue-Fri), though the last day of May has been notably weak.
In
midterm election years, May typically starts higher but turns broadly
weak by May 5 (Tue), with softness persisting through
most of the month.
In the Four-Year Presidential Cycle, May of midterm election years has historically been the weakest,
with all major indices avg. declines: DJIA –0.08%, S&P 500 –0.63%, NASDAQ –0.76%, NYSE –1.19%.
Historical S&P 500 data shows May averages just 0.38% gain since 1950 overall, but improves to 2.58% average and
9-1 record in the 10 years with April gains of 5% or higher, including the last seven straight positives post-1985.
When the S&P 500 closes April at a new all-time monthly high since the early 1960s (17 instances shown),
the remainder of the calendar year has been positive 100% of the time with an average gain of +10.35%.
the remainder of the calendar year has been positive 100% of the time with an average gain of +10.35%.
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