Seasonality
ALNY seasonality — Alnylam Pharmaceuticals, Inc.
Over the last 11 years, ALNY's strongest month on average has been June (+14.6%) and its weakest October (-7.5%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +0.62% | +0.99% | 50% | +15.8% | -18.9% | 10 |
| Feb | +0.03% | -1.55% | 40% | +29.1% | -15.4% | 10 |
| Mar | +1.20% | -0.69% | 40% | +9.9% | -7.5% | 10 |
| Apr | -3.13% | -3.10% | 20% | +21.0% | -20.6% | 10 |
| May | +1.01% | +1.84% | 60% | +22.1% | -24.4% | 10 |
| Jun | +14.63% | +8.48% | 80% | +63.7% | -1.0% | 10 |
| Jul | -0.24% | +0.64% | 50% | +20.3% | -31.7% | 10 |
| Aug | +12.86% | +11.60% | 90% | +45.5% | -9.0% | 10 |
| Sep | +0.73% | +0.90% | 50% | +37.0% | -28.6% | 10 |
| Oct | -7.45% | -5.58% | 40% | +7.9% | -33.1% | 10 |
| Nov | +8.71% | +6.43% | 78% | +35.0% | -5.1% | 9 |
| Dec | -3.72% | -6.29% | 30% | +13.8% | -14.7% | 10 |
Monthly returns heat map — ALNY
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -15.0 | -1.5 | -0.6 | -6.5 | -2.4 | -0.3 | -31.7 | 17.1 | 2.5 | -33.1 | -5.5 | -60.8% | |
| 2025 | 15.3 | -9.1 | 9.4 | -2.5 | 15.7 | 7.1 | 20.3 | 13.8 | 2.1 | 0.0 | -1.1 | -11.9 | +69.0% |
| 2024 | -9.7 | -12.6 | -1.1 | -3.7 | 3.1 | 63.7 | -2.3 | 10.6 | 4.7 | -3.1 | -5.1 | -7.0 | +22.9% |
| 2023 | -4.7 | -15.4 | 4.6 | -0.6 | -7.1 | 2.7 | 2.9 | 1.2 | -10.5 | -14.3 | 10.8 | 13.8 | -19.5% |
| 2022 | -18.9 | 14.7 | 3.5 | -18.3 | -5.7 | 15.9 | -2.6 | 45.5 | -3.1 | 3.5 | 6.4 | 7.7 | +40.1% |
| 2021 | 15.8 | -1.6 | -4.7 | -0.4 | 1.0 | 19.4 | 5.6 | 12.6 | -6.3 | -15.5 | 15.2 | -7.7 | +30.5% |
| 2020 | -0.3 | 2.5 | -7.5 | 21.0 | 2.7 | 9.5 | -1.6 | -9.0 | 9.8 | -15.5 | 5.6 | 0.1 | +12.8% |
| 2019 | 14.6 | 1.8 | 9.9 | -4.4 | -24.4 | 7.5 | 6.9 | 4.0 | -0.3 | 7.9 | 35.0 | -1.7 | +58.0% |
| 2018 | 2.3 | -7.6 | -0.9 | -20.6 | 5.2 | -1.0 | -3.5 | 29.1 | -28.6 | -8.1 | 0.9 | -10.2 | -42.6% |
| 2017 | 6.8 | 29.1 | -0.8 | 4.6 | 22.1 | 21.9 | 3.7 | 3.6 | 37.0 | 3.7 | 10.4 | -5.6 | +239.3% |
| 2016 | -14.7 |