The takeaway
IAMGold Corporation shows a pronounced seasonal pattern over 10 years of data — strongest in December (+5.6%) and softest in August (−4.0%).
Right now
In July, the stock has risen 70% of years, averaging +6.0%, about +3.9 pts better than the S&P 500.
The full picture
IAMGold Corporation's most dependable month has been December, higher in 8 of 10 years; August 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 April (+5.6 pts); it has trailed the market most in August (−4.3 pts).
“vs S&P” is IAMGold Corporation’s average for a month minus the S&P 500’s average for that same month — isolating IAMGold Corporation’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, December has closed higher 60% of the time versus 80% across the last 10 years — the pattern is weakening.
Figures are the typical (median) December 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
Dependability is the through-line here. December stands out, higher in 8 of 10 Decembers, but it heads a clutch of months that pull the year reliably upward.
Its average (+5.6%) and median (+4.8%) land within a hair of each other — the tell of steady, year-after-year gains rather than one outlier doing the work. It is also the calendar's calmest month, its returns swinging least from year to year (a 6.8% spread), and even its worst December in 10 years lost only 5.0% — the gentlest downside anywhere on its calendar. Crucially, the gain is the stock's own rather than a rising tide's: December has cleared the S&P 500 by +4.6 points above the index. That consistency sets it apart from the field, where the average stock manages December only about 58% of the time.
A few other months pull their weight: March, May, and July have also closed higher more often than not. On the other side of the ledger, August has been the soft spot — the weakest of 3 months that average a loss (−4.0%), and the edge isn't year-round — the stock has trailed the S&P 500 in August, January, and February. Its roughest month on record was a −29.1% August in 2016 — a reminder of how hard even a seasonal name can fall.
At its steadiest, December strung together 7 straight positive years. The pattern has softened of late, December's last five years slipping below its longer-run record.
The takeaway is less about when to buy than what to expect: December aside, the stock's months offer little reliable tilt. With returns that swing hard year to year, the signal is best held loosely.
Short answers on the stock's best month (December), its worst (August), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2016 its best month (December, +5.6%) has run well ahead of its worst (August, −4.0%) — the heatmap above shows how steady that gap has been year to year.
December has been the strongest, averaging +5.6% and closing higher in 8 of 10 years since 2016.
It's the weakest, averaging −4.0% — 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