The takeaway
Fonar Corporation shows a pronounced seasonal pattern over 10 years of data — strongest in May (+7.1%) and softest in March (−3.6%).
Right now
In July, the stock has risen 40% of years, averaging +4.1%, about +1.9 pts better than the S&P 500.
The full picture
Fonar Corporation's most dependable month has been May, higher in 6 of 10 years; March has been its least reliable, up just 20% of the time.
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Month by month
The stock's clearest edge over the S&P 500 lands in May (+6.3 pts); it has trailed the market most in September (−4.7 pts).
“vs S&P” is Fonar Corporation’s average for a month minus the S&P 500’s average for that same month — isolating Fonar Corporation’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, May has closed higher 60% of the time versus 60% across the last 10 years — the pattern is weakening.
Figures are the typical (median) May 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
The year leans May's way without overwhelming the rest of it: the stock has closed higher in 6 of 10 Mays, its most dependable month if not a dominant one.
Its average (+7.1%) and median (+5.1%) land within a hair of each other — the tell of steady, year-after-year gains rather than one outlier doing the work. That reliability comes with real swings, mind — even May ranges by 12.8% 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: May has cleared the S&P 500 by +6.3 points above the index.
A few other months pull their weight: January and June have also closed higher more often than not. The weaker half of the year is plainer: March has been the soft spot — the weakest of 5 months that average a loss (−3.6%), and the edge isn't year-round — the stock has trailed the S&P 500 in September, March, and October. Its roughest month on record was a −26.1% March in 2020 — a reminder of how hard even a seasonal name can fall.
The pattern has softened of late, May's last five years slipping below its longer-run record.
Treat it as a tendency rather than a rule — seasonality describes the past, not a promise.
Short answers on the stock's best month (May), its worst (March), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2016 its best month (May, +7.1%) has run well ahead of its worst (March, −3.6%) — the heatmap above shows how steady that gap has been year to year.
May has been the strongest, averaging +7.1% and closing higher in 6 of 10 years since 2016.
It's the weakest, averaging −3.6% — 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