Options Chain for RESEARCH FRONTIERS INC COM (REFR) - $0.55 as of 7/20/2026 6:09:03 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 | 0.20 | -0.06 | -23.08% | 0.01 | 1 | 12 | 3.92 | 0.07 | 0.31 | 0.00 | 7/20/2026 | 7/20/2026 4:00:02 PM EST |
| 5.00 | 0.00 | 0.05 | 0.03 | 0.05 | -0.07 | -58.34% | 0.01 | 2 | 5 | 4.87 | 0.01 | 0.06 | 0.00 | 7/20/2026 | 7/20/2026 4:00:02 PM EST |
| 7.50 | 0.00 | 0.05 | 0.03 | 0.29 | 0.00 | 0.00% | 0.00 | 0 | 13 | 0.00 | 0.00 | 0.02 | 0.00 | 7/16/2026 | 7/20/2026 4:00:02 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 | 1.95 | 2.20 | 2.08 | % | 0.83 | 0 | 0 | 7.06 | -0.93 | 0.31 | 0.00 | 7/20/2026 4:00:02 PM EST | |||
| 5.00 | 4.40 | 4.70 | 4.55 | % | 0.91 | 0 | 0 | 8.14 | -0.99 | 0.06 | 0.00 | 7/20/2026 4:00:02 PM EST | |||
| 7.50 | 6.90 | 7.20 | 7.05 | 7.15 | % | 0.94 | 1 | 0 | 8.74 | -1.00 | 0.02 | 0.00 | 7/20/2026 | 7/20/2026 4:00:02 PM EST |