AMZN Seasonality: Amazon Stock's Best and Worst Months
November 3, 2026
You might expect Amazon to shine around the holidays. AMZN seasonality says otherwise: December has been its weakest month over the last 15 years, while early summer has been remarkably consistent. These figures use adjusted prices from 2011 to 2025.
AMZN seasonality chart: the average year
Amazon stock seasonality by month
| Month | AMZN avg return | Rose in (15y) |
|---|---|---|
| January | +5.31% | 10 of 15 |
| February | −0.91% | 7 of 15 |
| March | +2.33% | 11 of 15 |
| April | +4.35% | 10 of 15 |
| May | +2.06% | 10 of 15 |
| June | +3.96% | 12 of 15 |
| July | +6.34% | 11 of 15 |
| August | +0.88% | 7 of 15 |
| September | −1.29% | 5 of 15 |
| October | +1.40% | 8 of 15 |
| November | +3.43% | 11 of 15 |
| December | −2.11% | 6 of 15 |
The window that hasn't lost since 2011: June 14 to July 14
From June 14 to July 14, AMZN rose in 15 of 15 years, averaging +7.82%, and its worst year was still a gain of +1.84%. It also held in 2026, at +3.75%. July is Amazon’s best calendar month as well, at +6.34%, though 2022’s +27.1% lifts that average; the median July is +4.57%.
Weak spots: September and December
AMZN rose in only 5 of 15 Septembers and 6 of 15 Decembers, averaging −1.29% and −2.11%. Strong holiday sales are widely expected, so they may already be in the price by December, though the data shows only the pattern and not the reason.
The most reliable AMZN seasonal windows
| AMZN window | Avg return | Rose in (15y) | Worst year |
|---|---|---|---|
| Jun 14 – Jul 14 | +7.82% | 15 of 15 | +1.84% |
| May 22 – Jun 11 | +3.07% | 14 of 15 | −6.10% |
| Aug 22 – Sep 11 | +3.74% | 13 of 15 | −5.13% |
| Apr 5 – May 5 | +4.71% | 13 of 15 | −29.04% |
| Oct 30 – Nov 29 | +3.88% | 12 of 15 | −13.31% |
On the weak side, September 20 to October 10 fell in 12 of 15 years (average −2.15%), and November 30 to December 10 fell in 11 of 15 (average −1.41%).
See the live chart and upcoming windows on the AMZN seasonality page.
Check any Amazon date range against every year.
Open AMZN in the Chart ExplorerPast seasonal performance does not guarantee future results. Win rates and average returns are historical base rates, not predictions. This is for informational purposes only and is not financial advice.
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