GOSSVSSIGI• 28 Days (Normalized)
GOSS vs SIGI (Gossamer Bio Inc. vs Selective Insurance Group Inc.)
Showing Closing Date Range from Aug, 18 to Sep, 15, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
GOSS Performance $10.38
+7158.74%
Gossamer Bio Inc.
Normalized Baseline0.00%
SIGI Performance $89.34
-2.15%
Selective Insurance Group Inc.
Normalized Baseline0.00%
Alpha Spread Margin GOSS LEADS
+7160.89%
GOSS outperforming by 7160.89%
GOSSSIGI
Spread Trajectory28 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
GOSS SIGI
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(20 dates)
| Date | GOSS Price | GOSS Gain (%) | SIGI Price | SIGI Gain (%) | Spread |
|---|---|---|---|---|---|
| Sep 15, 2026 | $10.38 | +7158.74% | $89.34 | -2.15% | +7160.89% |
| Sep 14, 2026 | $10.70 | +7382.52% | $89.42 | -2.06% | +7384.58% |
| Sep 11, 2026 | $10.73 | +7403.50% | $90.34 | -1.05% | +7404.55% |
| Sep 10, 2026 | $11.36 | +7844.06% | $90.56 | -0.81% | +7844.87% |
| Sep 09, 2026 | $12.80 | +8851.05% | $90.12 | -1.29% | +8852.34% |
| Sep 08, 2026 | $14.40 | +9969.93% | $90.90 | -0.44% | +9970.37% |
| Sep 04, 2026 | $14.00 | +9690.21% | $92.19 | +0.97% | +9689.24% |
| Sep 03, 2026 | $14.05 | +9723.78% | $93.20 | +2.08% | +9721.70% |
| Sep 02, 2026 | $0.17 | +20.98% | $92.23 | +1.02% | +19.96% |
| Sep 01, 2026 | $0.17 | +16.78% | $91.21 | -0.10% | +16.88% |
| Aug 31, 2026 | $0.17 | +18.88% | $91.29 | -0.01% | +18.89% |
| Aug 28, 2026 | $0.17 | +18.88% | $92.46 | +1.27% | +17.61% |
| Aug 27, 2026 | $0.17 | +18.88% | $92.30 | +1.10% | +17.78% |
| Aug 26, 2026 | $0.17 | +21.68% | $92.38 | +1.18% | +20.50% |
| Aug 25, 2026 | $0.21 | +43.36% | $91.91 | +0.67% | +42.69% |
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