SPSC
Moving with the market
- SPSC +0.53% on the last session vs SPY +0.02%: +0.5 pts of stock-specific move.
- Market backdrop (Today): Core PPI m/m 1.3% vs 0.3% expected (hotter); Core Retail Sales m/m 0.9% vs 0.6% expected (stronger); S&P futures -0.08%, 10-year yield -3bp in the 30 minutes after.
Best and worst times to own SPSC 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 | +11.7% | #130 | Jul 30, 2025 | Jul 31, 2025 | -22.0% | #12 |
| one week | Jul 24, 2026 | Jul 31, 2026 | +20.0% | #133 | Oct 24, 2025 | Oct 31, 2025 | -26.7% | #25 |
| one month | Jul 24, 2026 | Aug 24, 2026 | +33.0% | #115 | Jan 23, 2026 | Feb 25, 2026 | -40.2% | #15 |
| 3 months | May 13, 2026 | Aug 13, 2026 | +59.0% | #85 | Jan 9, 2026 | Apr 10, 2026 | -45.5% | #13 |
| 6 months | Apr 10, 2026 | Oct 12, 2026 | +64.4% | #124 | Aug 22, 2025 | Feb 24, 2026 | -53.2% | #16 |
| one year | Oct 15, 2024 | Jan 23, 2025 | +0.8% | #470 | May 13, 2025 | May 13, 2026 | -67.3% | #5 |
Rank #133 for the best one week means 132 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 15, 2026 |
+0.5% | +2.9% | +4.5% | +33.7% | +54.8% | -21.6% |
| Best one single day Apr 8, 2025 |
-1.4% | -9.4% | -5.2% | -33.7% | -36.9% | -31.3% |
| Best one week Jul 24, 2026 |
+3.7% | -6.8% | +10.1% | +11.9% | -32.5% | -55.6% |
| Best one month Jul 24, 2026 |
+3.7% | -6.8% | +10.1% | +11.9% | -32.5% | -55.6% |
| Best 3 months May 13, 2026 |
-4.0% | -10.7% | -5.9% | -19.4% | -39.3% | -67.3% |
| Best 6 months Apr 10, 2026 |
-1.6% | -8.3% | -15.8% | -45.5% | -51.9% | -60.4% |
| Best one year Oct 15, 2024 |
0.0% | +1.7% | +1.5% | -3.4% | +18.0% | +13.9% |
Trailing gains over each window, today and on the day each best window started, to compare today's setup with the best entries.