Seasonality
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GRMN - Average returns for the respective month in the last 5 years
GRMN - Average growth of $100 invested at start of year
5 years of data
GRMN Distribution of Daily Returns from 2021 to 2026
GRMN Distribution of Daily % Changes
Monthly Returns Heatmap
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -0.60% | 25.39% | -7.88% | 8.25% | -6.86% | 2.00% | 23.68% | 5.59% | ||||
| 2025 | 4.65% | 6.06% | -4.81% | -13.94% | 8.62% | 3.29% | 4.81% | 10.54% | 2.20% | -13.11% | -8.70% | 4.30% |
| 2024 | -7.04% | 14.95% | 8.92% | -2.96% | 13.41% | -0.10% | 5.11% | 7.03% | -3.57% | 12.68% | 7.18% | -2.64% |
| 2023 | 7.14% | -0.76% | 3.63% | -2.72% | 5.07% | 1.81% | 1.53% | 0.12% | -0.09% | -2.54% | 19.22% | 5.76% |
| 2022 | -8.63% | -11.24% | 8.06% | -7.48% | -3.75% | -6.27% | -0.64% | -9.35% | -8.49% | 9.63% | 5.62% | 0.00% |
| 2021 | -4.01% | 7.97% | 6.82% | 4.09% | 3.64% | 2.16% | 8.68% | 10.96% | -10.53% | -7.63% | -7.01% | 2.48% |
| 2020 | -8.83% | -14.53% | 8.27% | 11.10% | 8.86% | 1.12% | 5.09% | -7.88% | 9.66% | 12.25% | 3.01% | |
| Avg | -1.41% | 4.79% | 0.03% | -0.93% | 4.46% | 1.68% | 6.33% | 4.07% | -4.73% | 1.45% | 4.76% | 2.15% |
Jul is the seasonally strongest month over 5Y.
Jul averages +6.3% with a 86% win rate across 5 years of history.
Sep shows persistent seasonal weakness.
Sep averages -4.7% with only a 17% win rate across 5 years of history.
Q4 (Oct–Nov–Dec) is the seasonally strongest quarter.
The three months of Q4 combine for a +8.4% average return historically.
January Effect: Q1 historically opens the year positively.
Q1 (Jan–Mar) averages +3.4% historically, with January alone posting a 33% win rate.
2026 YTD is tracking above the 5Y seasonal average.
At day 155 of the year, the current YTD return is +45.5% vs the historical average for the same point.