Seasonality
IRDM seasonality — Iridium Communications
Over the last 11 years, IRDM's strongest month on average has been June (+5.9%) and its weakest September (-4.4%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +5.19% | +5.12% | 70% | +25.3% | -13.1% | 10 |
| Feb | -0.54% | +4.25% | 60% | +20.2% | -22.2% | 10 |
| Mar | +1.69% | +1.38% | 60% | +24.2% | -17.5% | 10 |
| Apr | +5.03% | +3.17% | 70% | +40.8% | -11.7% | 10 |
| May | +3.60% | +1.38% | 60% | +32.5% | -22.0% | 10 |
| Jun | +5.91% | +5.92% | 90% | +18.8% | -11.6% | 10 |
| Jul | -0.10% | +6.53% | 60% | +19.0% | -18.9% | 10 |
| Aug | +1.46% | +0.52% | 50% | +17.1% | -10.1% | 10 |
| Sep | -4.42% | -7.14% | 30% | +18.0% | -29.9% | 10 |
| Oct | +2.19% | +2.50% | 60% | +16.5% | -18.6% | 10 |
| Nov | +3.10% | +2.83% | 67% | +21.5% | -14.4% | 9 |
| Dec | +2.60% | +5.86% | 60% | +22.6% | -22.7% | 10 |
Monthly returns heat map — IRDM
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 14.6 | 20.2 | 15.8 | 40.8 | 32.5 | 5.9 | -13.7 | -0.8 | 2.0 | -6.2 | -1.9 | +153.4% | |
| 2025 | -0.9 | 9.8 | -13.4 | -11.7 | 5.3 | 18.8 | -18.9 | 1.8 | -29.9 | 9.7 | -14.4 | 6.0 | -40.1% |
| 2024 | -11.9 | -20.2 | -9.6 | 17.7 | -2.2 | -11.6 | 7.8 | -10.1 | 18.0 | -3.7 | 1.3 | -2.4 | -29.5% |
| 2023 | 16.4 | 2.6 | 0.9 | 2.5 | -5.4 | 3.5 | -15.4 | -6.8 | -7.1 | -18.6 | 2.8 | 8.0 | -19.9% |
| 2022 | -13.1 | 10.3 | 1.8 | -11.4 | 3.9 | 1.2 | 19.0 | -0.7 | -0.1 | 16.1 | 3.0 | -3.2 | +24.5% |
| 2021 | 25.3 | -22.2 | 7.7 | -7.9 | 0.6 | 4.7 | 5.6 | 5.4 | -10.5 | 1.8 | -5.2 | 7.4 | +5.0% |
| 2020 | 3.7 | 6.0 | -17.5 | 0.8 | 2.2 | 10.6 | 7.7 | 2.3 | -8.7 | 3.2 | 21.5 | 22.6 | +59.6% |
| 2019 | 5.0 | 9.9 | 24.2 | 3.9 | -22.0 | 8.5 | 9.4 | -5.0 | -12.0 | 15.0 | -4.8 | 5.8 | +33.5% |
| 2018 | 7.6 | -7.9 | -3.9 | 5.8 | 27.7 | 5.9 | 7.5 | 17.1 | 11.1 | -12.0 | 20.6 | -22.7 | +56.4% |
| 2017 | 5.2 | -13.9 | 10.9 | 9.8 | -6.6 | 11.6 | -9.9 | 11.6 | -7.2 | 16.5 | 2.9 | -4.5 | +22.9% |
| 2016 | 9.1 |