GFFVSREFR• 28 Days (Normalized)
GFF vs REFR (Griffon Corporation vs Research Frontiers Incorporated)
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.
GFF Performance $90.59
-5.66%
Griffon Corporation
Normalized Baseline0.00%
REFR Performance $0.59
+52.13%
Research Frontiers Incorporated
Normalized Baseline0.00%
Alpha Spread Margin REFR LEADS
-57.79 pts
REFR outperforming by 57.79 percentage points
GFFREFR
Spread Trajectory28 Days (Normalized)
Cumulative Performance Trajectory
Interactive divergence comparison normalized at 0.00% on start date.
GFF REFR
Comparative Historical Ledger
Daily closing prices, normalized percentages, and relative spread divergence.
Historical Quotes & Breakdown(21 dates)
| Date | GFF Price | GFF Gain (%) | REFR Price | REFR Gain (%) | Spread |
|---|---|---|---|---|---|
| Oct 09, 2026 | $90.59 | -5.66% | $0.59 | +52.13% | -57.79% |
| Oct 08, 2026 | $92.15 | -4.04% | $0.62 | +59.59% | -63.63% |
| Oct 07, 2026 | $94.00 | -2.11% | $0.68 | +75.28% | -77.39% |
| Oct 06, 2026 | $94.51 | -1.58% | $0.72 | +83.72% | -85.30% |
| Oct 05, 2026 | $94.09 | -2.02% | $0.73 | +86.72% | -88.74% |
| Oct 02, 2026 | $93.97 | -2.15% | $0.73 | +86.82% | -88.97% |
| Oct 01, 2026 | $93.15 | -3.00% | $- | - | |
| Sep 30, 2026 | $93.04 | -3.11% | $- | - | |
| Sep 29, 2026 | $94.31 | -1.79% | $- | - | |
| Sep 28, 2026 | $96.08 | +0.05% | $- | - | |
| Sep 25, 2026 | $98.39 | +2.46% | $- | - | |
| Sep 24, 2026 | $96.54 | +0.53% | $0.74 | +89.92% | -89.39% |
| Sep 23, 2026 | $96.59 | +0.58% | $0.71 | +82.05% | -81.47% |
| Sep 22, 2026 | $97.46 | +1.49% | $0.78 | +100.00% | -98.51% |
| Sep 21, 2026 | $95.12 | -0.95% | $0.76 | +94.87% | -95.82% |
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