REFRVSULBI• 28 Days (Normalized)
REFR vs ULBI (Research Frontiers Incorporated vs Ultralife Corporation)
Showing Closing Date Range from Sep 3 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
+5.9%
Ultralife Corporation
Normalized Baseline0.00%
Alpha Spread Margin ULBI LEADS
-5.9 pts
ULBI outperforming by 5.90 percentage points
REFRULBI
Spread Trajectory28 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(17 dates)
| Date | REFR Price | REFR Gain (%) | ULBI Price | ULBI Gain (%) | Spread |
|---|---|---|---|---|---|
| Sep 30, 2026 | $- | $6.46 | +5.90% | - | |
| Sep 25, 2026 | $- | $6.16 | +0.98% | - | |
| Sep 24, 2026 | $0.74 | +80.66% | $6.05 | -0.82% | +81.48% |
| Sep 23, 2026 | $0.71 | +73.17% | $5.90 | -3.28% | +76.45% |
| Sep 22, 2026 | $0.78 | +90.24% | $5.70 | -6.56% | +96.80% |
| Sep 21, 2026 | $0.76 | +85.37% | $5.64 | -7.54% | +92.91% |
| Sep 18, 2026 | $0.65 | +58.54% | $5.65 | -7.38% | +65.92% |
| Sep 17, 2026 | $0.39 | -4.88% | $5.58 | -8.52% | +3.64% |
| Sep 16, 2026 | $0.38 | -7.32% | $5.45 | -10.66% | +3.34% |
| Sep 15, 2026 | $0.36 | -12.20% | $5.44 | -10.82% | -1.38% |
| Sep 14, 2026 | $0.38 | -7.32% | $5.56 | -8.85% | +1.53% |
| Sep 11, 2026 | $0.39 | -4.88% | $5.60 | -8.20% | +3.32% |
| Sep 10, 2026 | $0.39 | -4.88% | $5.65 | -7.38% | +2.50% |
| Sep 09, 2026 | $0.39 | -4.88% | $5.63 | -7.70% | +2.82% |
| Sep 08, 2026 | $0.39 | -4.88% | $5.94 | -2.62% | -2.26% |
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