ULBIVSWDC• 28 Days (Normalized)
ULBI vs WDC (Ultralife Corporation vs Western Digital Corporation)
Showing Closing Date Range from Sep 4 to Oct 2, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
ULBI Performance $6.51
+6.2%
Ultralife Corporation
Normalized Baseline0.00%
WDC Performance $415.29
-11.16%
Western Digital Corporation
Normalized Baseline0.00%
Alpha Spread Margin ULBI LEADS
+17.36 pts
ULBI outperforming by 17.36 percentage points
ULBIWDC
Spread Trajectory28 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
ULBI WDC
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(20 dates)
| Date | ULBI Price | ULBI Gain (%) | WDC Price | WDC Gain (%) | Spread |
|---|---|---|---|---|---|
| Oct 02, 2026 | $6.51 | +6.20% | $415.29 | -11.16% | +17.36% |
| Oct 01, 2026 | $- | $462.56 | -1.05% | - | |
| Sep 30, 2026 | $6.46 | +5.38% | $454.46 | -2.78% | +8.16% |
| Sep 29, 2026 | $- | $453.48 | -2.99% | - | |
| Sep 28, 2026 | $- | $453.23 | -3.04% | - | |
| Sep 25, 2026 | $6.16 | +0.49% | $456.81 | -2.28% | +2.77% |
| Sep 24, 2026 | $6.05 | -1.31% | $- | - | |
| Sep 23, 2026 | $5.90 | -3.75% | $473.69 | +1.33% | -5.08% |
| Sep 22, 2026 | $5.70 | -7.01% | $464.60 | -0.61% | -6.40% |
| Sep 21, 2026 | $5.64 | -7.99% | $448.17 | -4.13% | -3.86% |
| Sep 18, 2026 | $5.65 | -7.83% | $441.36 | -5.58% | -2.25% |
| Sep 17, 2026 | $5.58 | -8.97% | $423.87 | -9.32% | +0.35% |
| Sep 16, 2026 | $5.45 | -11.09% | $416.97 | -10.80% | -0.29% |
| Sep 15, 2026 | $5.44 | -11.26% | $411.96 | -11.87% | +0.61% |
| Sep 14, 2026 | $5.56 | -9.30% | $426.94 | -8.67% | -0.63% |
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