REFRVSULBI• 7 Days (Normalized)
REFR vs ULBI (Research Frontiers Incorporated vs Ultralife Corporation)
Showing Closing Date Range from Sep 24 to Oct 1, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
REFR Performance $0.74
+%
Research Frontiers Incorporated
Normalized Baseline0.00%
ULBI Performance $6.46
+6.78%
Ultralife Corporation
Normalized Baseline0.00%
Alpha Spread Margin ULBI LEADS
-6.78 pts
ULBI outperforming by 6.78 percentage points
REFRULBI
Spread Trajectory7 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
REFR ULBI
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(3 dates)
| Date | REFR Price | REFR Gain (%) | ULBI Price | ULBI Gain (%) | Spread |
|---|---|---|---|---|---|
| Sep 30, 2026 | $- | $6.46 | +6.78% | - | |
| Sep 25, 2026 | $- | $6.16 | +1.82% | - | |
| Sep 24, 2026 | $0.74 | +0.00% | $6.05 | +0.00% | +0.00% |