The takeaway
Momentus Inc shows a pronounced seasonal pattern over 6 years of data — strongest in October (+19.1%) and softest in February (−22.8%).
Right now
In July, the stock has risen 67% of years, averaging +1.1%, roughly 1.0 pts behind the S&P 500.
The full picture
Momentus Inc's most dependable month has been October, higher in 4 of 6 years; February has been its least reliable, up just 0% of the time.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| Median return % | ||||||||||||
| 2025 | ||||||||||||
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| 2023 | ||||||||||||
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| 2020 |
Month by month
The stock's clearest edge over the S&P 500 lands in October (+18.1 pts); it has trailed the market most in February (−22.5 pts).
“vs S&P” is Momentus Inc’s average for a month minus the S&P 500’s average for that same month — isolating Momentus Inc’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, October has closed higher 80% of the time versus 67% across the last 6 years — the pattern is strengthening.
Figures are the typical (median) October return and how often it rose — the last 5 years versus the last 6(the heatmap’s default window). This verdict stays anchored to that 6-year window even if you zoom the chart, so it never disagrees with the badges above.
In plain English
This is a feast-or-famine calendar. October reads as the strong month, higher in 4 of 6 Octobers, but the tale is one of a few outsized years more than steady gains.
Read it with one caveat: the average (+19.1%) runs well ahead of the median (+3.8%), so a handful of outsized years — not steady strength — do much of the lifting. That reliability comes with real swings, mind — even October ranges by 38.0% from year to year, so any single year can land far from the average. Better still, that strength is the stock's own and not just a buoyant market — October has outpaced the S&P 500 by +18.1 points on average. Few peers keep such company in October — the typical stock clears it just 53% of the time.
Only July comes anywhere near it for reliability. The weaker half of the year is plainer: February has been the soft spot — the weakest of 9 months that average a loss (−22.8%), and the edge isn't year-round — the stock has trailed the S&P 500 in February, September, and December. Its roughest month on record was a −76.3% September in 2023 — a reminder of how hard even a seasonal name can fall.
If anything it has sharpened recently — the last five Octobers run ahead of the earlier years.
Hold it loosely, then: the October tendency is genuine but lumpy, more about the occasional outsized year than a gain to bank on. With a short 6-year record and returns that swing hard year to year, the signal is best held loosely.
Short answers on the stock's best month (October), its worst (February), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2020 its best month (October, +19.1%) has run well ahead of its worst (February, −22.8%) — the heatmap above shows how steady that gap has been year to year.
October has been the strongest, averaging +19.1% and closing higher in 4 of 6 years since 2020.
It's the weakest, averaging −22.8% — 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