BIO-B
Best and worst times to own BIO-B 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 | Sep 18, 2025 | Sep 19, 2025 | +15.3% | #75 | Feb 28, 2025 | Mar 3, 2025 | -14.8% | #65 |
| one week | Sep 12, 2025 | Sep 19, 2025 | +15.3% | #209 | Feb 24, 2025 | Mar 3, 2025 | -14.8% | #159 |
| one month | May 8, 2026 | Jun 8, 2026 | +19.0% | #334 | Feb 3, 2025 | Mar 3, 2025 | -25.7% | #108 |
| 3 months | May 20, 2026 | Aug 20, 2026 | +36.5% | #201 | Jan 29, 2025 | Apr 29, 2025 | -34.5% | #69 |
| 6 months | Feb 20, 2026 | Aug 20, 2026 | +39.4% | #222 | Oct 30, 2024 | Apr 9, 2025 | -32.7% | #93 |
| one year | Aug 20, 2025 | Aug 20, 2026 | +47.8% | #241 | Oct 30, 2024 | Apr 9, 2025 | -32.7% | #107 |
Rank #209 for the best one week means 208 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 |
0.0% | +4.2% | +3.9% | +22.7% | +26.7% | +25.2% |
| Best one single day Sep 18, 2025 |
0.0% | 0.0% | 0.0% | -1.2% | -7.1% | -24.4% |
| Best one week Sep 12, 2025 |
0.0% | 0.0% | 0.0% | -1.2% | -7.1% | -24.4% |
| Best one month May 8, 2026 |
-2.2% | -14.7% | -7.7% | -13.4% | -16.3% | +9.0% |
| Best 3 months May 20, 2026 |
0.0% | +4.7% | -3.5% | +2.1% | -13.9% | +6.9% |
| Best 6 months Feb 20, 2026 |
0.0% | +1.9% | -16.3% | -15.7% | +6.0% | -16.1% |
| Best one year Aug 20, 2025 |
0.0% | 0.0% | -4.2% | -1.2% | -20.8% | -24.4% |
Trailing gains over each window, today and on the day each best window started, to compare today's setup with the best entries.