The takeaway
Best Buy Co. Inc shows a moderate seasonal pattern over 10 years of data — strongest in July (+3.6%) and softest in May (0.0%).
Right now
In July, the stock has risen 70% of years, averaging +3.6%, about +1.5 pts better than the S&P 500.
The full picture
Best Buy Co. Inc's most dependable month has been July, higher in 7 of 10 years; May has been its least reliable, up just 30% of the time.
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Month by month
The stock's clearest edge over the S&P 500 lands in August (+3.2 pts); it has trailed the market most in December (−3.3 pts).
“vs S&P” is Best Buy Co. Inc’s average for a month minus the S&P 500’s average for that same month — isolating Best Buy Co. Inc’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, July has closed higher 60% of the time versus 70% across the last 10 years — the pattern is weakening.
Figures are the typical (median) July 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: July, up in 7 of 10 Julys while the other eleven tend to blur together.
Its average (+3.6%) and median (+3.1%) land within a hair of each other — the tell of steady, year-after-year gains rather than one outlier doing the work. It is among its calmest months, too, its returns swinging least from year to year (a 7.0% spread), and even its worst July in 10 years lost only 7.9% — the gentlest downside anywhere on its calendar. Crucially, the gain is the stock's own rather than a rising tide's: July has cleared the S&P 500 by +1.5 points above the index. Some of that is a strong month market-wide, mind — July rises for about 61% of stocks — so the tendency is real if not unique.
Only August comes anywhere near it for reliability. At the other end of the calendar, May is the year's quietest corner, essentially flat on average, and the edge isn't year-round — the stock has trailed the S&P 500 in December, March, and May. Its roughest month on record was a −27.7% March in 2020 — a reminder of how hard even a seasonal name can fall.
The pattern has softened of late, July's last five years slipping below its longer-run record.
The takeaway is less about when to buy than what to expect: July aside, the stock's months offer little reliable tilt.
Short answers on the stock's best month (July), its worst (May), and whether it really trades seasonally.
Yes, to a moderate degree. Since 2016 its best month (July, +3.6%) has run well ahead of its worst (May, 0.0%) — the heatmap above shows how steady that gap has been year to year.
July has been the strongest, averaging +3.6% and closing higher in 7 of 10 years since 2016.
It's the weakest month, but it has still averaged a small gain (0.0%) — quiet rather than genuinely bad.
Explore
These names have the strongest July track records on record — a starting point for comparison.
Before you trade