The takeaway
Cal-Maine Foods Inc shows a moderate seasonal pattern over 10 years of data — strongest in March (+5.6%) and softest in April (−1.8%).
Right now
In July, the stock has risen 50% of years, averaging +0.7%, roughly 1.4 pts behind the S&P 500.
The full picture
Cal-Maine Foods Inc's most dependable month has been March, higher in 8 of 10 years; April has been its least reliable, up just 40% of the time.
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Month by month
The stock's clearest edge over the S&P 500 lands in March (+4.5 pts); it has trailed the market most in April (−3.5 pts).
“vs S&P” is Cal-Maine Foods Inc’s average for a month minus the S&P 500’s average for that same month — isolating Cal-Maine Foods Inc’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, March has closed higher 100% of the time versus 80% across the last 10 years — the pattern is strengthening.
Figures are the typical (median) March return and how often it rose — the last 5 years versus the last 10(the heatmap’s default window). This verdict stays anchored to that 10-year window even if you zoom the chart, so it never disagrees with the badges above.
In plain English
Strip the year back and a single month does the heavy lifting: March, up in 8 of 10 Marches while the other eleven tend to blur together.
The headline flatters a touch — its +5.6% average sits well above the +1.7% a typical year delivers, the work of a few big Marches. That reliability comes with real swings, mind — even March ranges by 9.2% from year to year, so any single year can land far from the average. Crucially, the gain is the stock's own rather than a rising tide's: March has cleared the S&P 500 by +4.5 points above the index. That consistency sets it apart from the field, where the average stock manages March only about 56% of the time.
A few other months pull their weight: May, June, and August have also closed higher more often than not. At the other end of the calendar, April has been the soft spot — the weakest of 4 months that average a loss (−1.8%), and the edge isn't year-round — the stock has trailed the S&P 500 in April, May, and December. Its roughest month on record was a −18.9% September in 2025 — a reminder of how hard even a seasonal name can fall.
March has now closed higher 8 years running. If anything it has sharpened recently — the last five Marches run ahead of the earlier years.
The takeaway is less about when to buy than what to expect: March aside, the stock's months offer little reliable tilt.
Short answers on the stock's best month (March), its worst (April), and whether it really trades seasonally.
Yes, to a moderate degree. Since 2016 its best month (March, +5.6%) has run well ahead of its worst (April, −1.8%) — the heatmap above shows how steady that gap has been year to year.
March has been the strongest, averaging +5.6% and closing higher in 8 of 10 years since 2016.
It's the weakest, averaging −1.8% — historically a soft spot, though it still varies from year to year.
Explore
These names have the strongest July track records on record — a starting point for comparison.
Before you trade