AMPHVSBGM• 28 Days (Normalized)
AMPH vs BGM (Amphastar Pharmaceuticals Inc. vs BGM Group Ltd.)
Showing Closing Date Range from Sep 11 to Oct 9, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
AMPH Performance $26.62
+11.94%
Amphastar Pharmaceuticals Inc.
Normalized Baseline0.00%
BGM Performance $10.75
+3987.45%
BGM Group Ltd.
Normalized Baseline0.00%
Alpha Spread Margin BGM LEADS
-3975.51 pts
BGM outperforming by 3975.51 percentage points
AMPHBGM
Spread Trajectory28 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
AMPH BGM
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(19 dates)
| Date | AMPH Price | AMPH Gain (%) | BGM Price | BGM Gain (%) | Spread |
|---|---|---|---|---|---|
| Oct 09, 2026 | $26.62 | +11.94% | $10.75 | +3987.45% | -3975.51% |
| Oct 08, 2026 | $25.81 | +8.54% | $9.96 | +3687.07% | -3678.53% |
| Oct 07, 2026 | $25.54 | +7.40% | $9.39 | +3470.34% | -3462.94% |
| Oct 06, 2026 | $25.91 | +8.96% | $9.65 | +3569.20% | -3560.24% |
| Oct 05, 2026 | $25.37 | +6.69% | $9.35 | +3455.13% | -3448.44% |
| Oct 02, 2026 | $25.43 | +6.94% | $9.34 | +3451.33% | -3444.39% |
| Sep 29, 2026 | $- | $0.26 | -1.63% | - | |
| Sep 28, 2026 | $- | $0.24 | -7.22% | - | |
| Sep 25, 2026 | $26.13 | +9.88% | $0.24 | -8.75% | +18.63% |
| Sep 24, 2026 | $26.27 | +10.47% | $0.25 | -5.32% | +15.79% |
| Sep 23, 2026 | $24.96 | +4.96% | $0.26 | -3.04% | +8.00% |
| Sep 22, 2026 | $24.32 | +2.27% | $0.26 | -2.85% | +5.12% |
| Sep 21, 2026 | $24.48 | +2.94% | $0.26 | -2.66% | +5.60% |
| Sep 18, 2026 | $23.62 | -0.67% | $0.25 | -4.56% | +3.89% |
| Sep 17, 2026 | $23.82 | +0.17% | $0.26 | -1.52% | +1.69% |
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