Seasonality
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Seasonality
Sign in to unlock 10Y & 20Y views
BSX.TO - Average growth of $100 invested at start of year
5 years of data
BSX.TO - Average returns for the respective month in the last 5 years
Jan is the seasonally strongest month over 5Y.
Jan averages +32.5% with a 67% win rate across 5 years of history.
May shows persistent seasonal weakness.
May averages -7.7% with only a 14% win rate across 5 years of history.
Q1 (Jan–Feb–Mar) is the seasonally strongest quarter.
The three months of Q1 combine for a +39.4% average return historically.
January Effect: Q1 historically opens the year positively.
Q1 (Jan–Mar) averages +39.4% historically, with January alone posting a 67% win rate.
2026 YTD is tracking above the 5Y seasonal average.
At day 204 of the year, the current YTD return is +34.2% vs the historical average for the same point.
Monthly Returns Heatmap
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 11.11% | 106.67% | 3.23% | -6.25% | 7.50% | -19.38% | -4.81% | 54.55% | -24.18% | -19.83% | ||
| 2025 | 188.89% | -19.23% | -14.29% | 16.67% | -4.76% | 55.00% | -9.68% | 0.00% | 7.14% | 10.00% | 42.42% | 14.89% |
| 2024 | 0.00% | -20.00% | 25.00% | 0.00% | 0.00% | 0.00% | 20.00% | -33.33% | 25.00% | 20.00% | -16.67% | 80.00% |
| 2023 | -11.11% | -12.50% | 0.00% | 14.29% | -25.00% | 16.67% | 0.00% | -14.29% | 0.00% | 0.00% | -16.67% | 0.00% |
| 2022 | 1.69% | 3.33% | 22.58% | -42.11% | -22.73% | -23.53% | 38.46% | -33.33% | 0.00% | 8.33% | -11.54% | -60.87% |
| 2021 | 4.12% | -29.70% | 12.68% | 0.00% | -8.75% | -15.07% | -24.19% | 38.30% | -33.85% | 39.53% | 5.00% | -6.35% |
| 2020 | -15.38% | -13.64% | 105.26% | 0.00% | 6.41% | -10.84% | 39.19% | -0.97% | 19.61% | -18.03% | -3.00% | |
| Avg | 32.45% | 1.88% | 5.08% | 12.55% | -7.68% | 2.87% | 1.28% | 7.30% | -3.84% | 16.25% | -2.58% | 4.11% |
BSX.TO Distribution of Daily Returns from 2021 to 2026
BSX.TO Distribution of Daily % Changes