BSM
Best and worst times to own BSM in the past two years
Buying and selling at the close. Each colored stretch is the best or worst window for that holding period, green for a gain and red for a loss: longer holds are wider and darker underneath, shorter ones brighter on top. The grey line is the full two years. Letters mark events inside the windows (E earnings, A analyst, I insider, M mention spike, V volume spike, T theme move, N news). Hover a period above the chart to pick it out and see only its events; click it to hide or show it.
Best and worst window per holding period
| Best | Worst | |||||||
|---|---|---|---|---|---|---|---|---|
| Hold for | Buy | Sell | Gain | Rank | Buy | Sell | Gain | Rank |
| one single day | Apr 8, 2025 | Apr 9, 2025 | +8.7% | #212 | Apr 3, 2025 | Apr 4, 2025 | -6.3% | #322 |
| one week | Apr 8, 2025 | Apr 15, 2025 | +7.0% | #479 | Apr 1, 2025 | Apr 8, 2025 | -14.4% | #169 |
| one month | Oct 14, 2025 | Nov 14, 2025 | +13.2% | #462 | Mar 13, 2026 | Apr 14, 2026 | -12.3% | #405 |
| 3 months | Sep 5, 2025 | Dec 5, 2025 | +26.1% | #334 | Apr 17, 2025 | Jul 18, 2025 | -14.4% | #398 |
| 6 months | Sep 5, 2025 | Mar 5, 2026 | +34.8% | #263 | Jan 21, 2025 | Jul 21, 2025 | -18.4% | #260 |
| one year | Sep 8, 2025 | Sep 8, 2026 | +35.9% | #297 | Oct 30, 2024 | Jul 21, 2025 | -12.0% | #298 |
Rank #479 for the best one week means 478 of the S&P 500 components had a better best-one week gain over the past year; for the worst windows #1 is the deepest fall. Updated .
What happened in each window
From Wallsti's event record (Aftermath's events over the two years, plus the AI-read news catalysts, which only cover recent weeks). An event is no proof of cause: check the dates against the line.
Today vs. the best starting days
| As of | 1d | 1w | 1m | 3m | 6m | 1y |
|---|---|---|---|---|---|---|
| Today Oct 30, 2026 |
+0.3% | -0.8% | +3.7% | +2.6% | +8.5% | +23.0% |
| Best one single day Apr 8, 2025 |
-3.0% | -14.4% | -11.1% | -8.0% | -8.9% | -12.4% |
| Best one week Apr 8, 2025 |
-3.0% | -14.4% | -11.1% | -8.0% | -8.9% | -12.4% |
| Best one month Oct 14, 2025 |
-1.8% | -8.1% | -0.9% | -3.1% | -6.4% | -8.8% |
| Best 3 months Sep 5, 2025 |
-1.6% | -1.7% | -3.9% | -9.7% | -13.9% | -7.5% |
| Best 6 months Sep 5, 2025 |
-1.6% | -1.7% | -3.9% | -9.7% | -13.9% | -7.5% |
| Best one year Sep 8, 2025 |
-0.3% | -2.0% | -2.3% | -10.7% | -14.9% | -6.4% |
Trailing gains over each window, today and on the day each best window started, to compare today's setup with the best entries.