Options Chain for RESEARCH FRONTIERS INC COM (REFR) - $0.41 as of 9/3/2026 6:37:28 PM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 0.00 | 0.05 | 0.03 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 168 | 0.00 | 0.00 | 0.00 | 0.00 | 8/6/2026 | 9/3/2026 3:59:46 PM EST |
| 5.00 | 0.00 | 0.85 | 0.43 | 0.05 | 0.00 | 0.00% | 0.09 | 0 | 46 | 0.00 | 0.00 | 0.00 | 0.00 | 8/21/2026 | 9/3/2026 3:59:46 PM EST |
| 7.50 | 0.00 | 0.85 | 0.43 | 0.05 | 0.00 | 0.00% | 0.06 | 0 | 32 | 0.00 | 0.00 | 0.00 | 0.00 | 8/10/2026 | 9/3/2026 3:59:46 PM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.50 | 2.00 | 2.10 | 2.05 | 2.20 | +0.15 | +7.32% | 0.82 | 1 | 2 | 4.88 | -1.00 | 0.00 | 0.00 | 9/3/2026 | 9/3/2026 3:59:46 PM EST |
| 5.00 | 4.50 | 4.60 | 4.55 | 4.50 | 0.00 | 0.00% | 0.91 | 0 | 2 | 6.21 | -1.00 | 0.00 | 0.00 | 8/26/2026 | 9/3/2026 3:59:46 PM EST |
| 7.50 | 7.00 | 7.10 | 7.05 | 7.20 | +0.05 | +0.70% | 0.94 | 1 | 3 | 0.00 | -1.00 | 0.00 | 0.00 | 9/3/2026 | 9/3/2026 3:59:46 PM EST |