The takeaway
Aeva Technologies, Inc. Common Stock shows a pronounced seasonal pattern over 6 years of data — strongest in May (+30.2%) and softest in April (−13.3%).
Right now
In July, the stock has risen 50% of years, averaging +1.8% — essentially in line with the S&P 500.
The full picture
Aeva Technologies, Inc. Common Stock's most dependable month has been May, higher in 4 of 6 years; April has been its least reliable, up just 17% of the time.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Win rate % | ||||||||||||
| Median return % | ||||||||||||
| 2025 | ||||||||||||
| 2024 | ||||||||||||
| 2023 | ||||||||||||
| 2022 | ||||||||||||
| 2021 | ||||||||||||
| 2020 | — |
Month by month
The stock's clearest edge over the S&P 500 lands in May (+29.5 pts); it has trailed the market most in April (−15.0 pts).
“vs S&P” is Aeva Technologies, Inc. Common Stock’s average for a month minus the S&P 500’s average for that same month — isolating Aeva Technologies, Inc. Common Stock’s own seasonal edge from broad market drift.
Reality check
Over the last 5 years, May has closed higher 80% of the time versus 67% across the last 6 years — the pattern is strengthening.
Figures are the typical (median) May 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
May looks the standout, up in 4 of 6 Mays — yet the appeal is lumpy, leaning on the occasional blow-out year rather than dependable strength.
The headline flatters a touch — its +30.2% average sits well above the +2.7% a typical year delivers, the work of a few big Mays. That reliability comes with real swings, mind — even May ranges by 56.7% 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 +29.5 points above the index.
A few other months pull their weight: June, November, and December have also closed higher more often than not. The weaker half of the year is plainer: April has been the soft spot — the weakest of 6 months that average a loss (−13.3%), and the edge isn't year-round — the stock has trailed the S&P 500 in April, September, and August. Its roughest month on record was a −35.0% July in 2025 — a reminder of how hard even a seasonal name can fall.
If anything it has sharpened recently — the last five Mays run ahead of the earlier years.
Hold it loosely, then: the May 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 (May), its worst (April), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2020 its best month (May, +30.2%) has run well ahead of its worst (April, −13.3%) — the heatmap above shows how steady that gap has been year to year.
May has been the strongest, averaging +30.2% and closing higher in 4 of 6 years since 2020.
It's the weakest, averaging −13.3% — 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