The takeaway
Garmin Ltd shows a slight seasonal lean over 10 years of data — strongest in June (+1.5%) and softest in September (−1.2%).
Right now
In July, the stock has risen 70% of years, averaging +4.6%, about +2.4 pts better than the S&P 500.
The full picture
Garmin Ltd's most dependable month has been June, higher in 8 of 10 years; September 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 February (+4.1 pts); it has trailed the market most in April (−1.6 pts).
“vs S&P” is Garmin Ltd’s average for a month minus the S&P 500’s average for that same month — isolating Garmin Ltd’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, June has closed higher 80% of the time versus 80% across the last 10 years — the pattern is holding.
Figures are the typical (median) June 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
This is a stock you can almost set a calendar by, and June is the anchor — it has closed higher in 8 of 10 Junes, the steadiest beat on its year.
The strength looks broad-based rather than freakish: its average (+1.5%) and median (+1.3%) sit close together, so no single blow-out year is flattering the figure. No month is steadier: June's returns vary by just 3.4% year to year. Better still, that strength is the stock's own and not just a buoyant market — June has outpaced the S&P 500 by +1.2 points on average. Few peers keep such company in June — the typical stock clears it just 52% of the time.
June anchors a run, too: the May-through-August window has been the stock's reliable season. On the other side of the ledger, September has been the soft spot — the weakest of 2 months that average a loss (−1.2%), and the edge isn't year-round — the stock has trailed the S&P 500 in April, December, and September. Its roughest month on record was a −19.2% March in 2020 — a reminder of how hard even a seasonal name can fall.
Reassuringly, the tendency has held its shape: the recent five years still track the years behind them.
For a stock this dependable in June, the sharper question is the rest of the year — outside its strong stretch, the calendar gives far less to lean on.
Short answers on the stock's best month (June), its worst (September), and whether it really trades seasonally.
Only mildly. The stock's months are fairly even — June is the firmest (+1.5%) and September the softest (−1.2%), a narrow spread that points to weak seasonality rather than a strong calendar effect.
June has been the strongest, averaging +1.5% and closing higher in 8 of 10 years since 2016.
It's the weakest, averaging −1.2% — 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