ULBIVSWDC• 7 Days (Normalized)
ULBI vs WDC (Ultralife Corporation vs Western Digital Corporation)
Showing Closing Date Range from Sep 25 to Oct 2, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
ULBI Performance $6.46
+%
Ultralife Corporation
Normalized Baseline0.00%
WDC Performance $462.56
+1.26%
Western Digital Corporation
Normalized Baseline0.00%
Alpha Spread Margin WDC LEADS
-1.26 pts
WDC outperforming by 1.26 percentage points
ULBIWDC
Spread Trajectory7 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(5 dates)
| Date | ULBI Price | ULBI Gain (%) | WDC Price | WDC Gain (%) | Spread |
|---|---|---|---|---|---|
| Oct 01, 2026 | $- | $462.56 | +1.26% | - | |
| Sep 30, 2026 | $6.46 | +4.87% | $454.46 | -0.51% | +5.38% |
| Sep 29, 2026 | $- | $453.48 | -0.73% | - | |
| Sep 28, 2026 | $- | $453.23 | -0.78% | - | |
| Sep 25, 2026 | $6.16 | +0.00% | $456.81 | +0.00% | +0.00% |