Options Chain for RESEARCH FRONTIERS INC COM (REFR) - $0.66 as of 10/19/2026 7:55:16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.50 | 0.00 | 0.20 | 0.10 | 0.10 | 0.00 | 0.00% | 0.20 | 0 | 40 | 3.26 | 0.66 | 1.06 | 0.00 | 10/16/2026 | 10/19/2026 3:59:52 PM EST |
| 1.00 | 0.00 | 0.05 | 0.03 | % | 0.03 | 0 | 0 | 2.44 | 0.27 | 0.93 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 1.50 | 0.00 | 0.85 | 0.43 | % | 0.29 | 0 | 0 | 0.00 | 0.11 | 0.53 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 2.00 | 0.00 | 0.85 | 0.43 | % | 0.21 | 0 | 0 | 0.00 | 0.05 | 0.29 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 2.50 | 0.00 | 0.75 | 0.38 | 0.04 | 0.00 | 0.00% | 0.15 | 0 | 529 | 0.00 | 0.02 | 0.16 | 0.00 | 10/2/2026 | 10/19/2026 3:59:52 PM EST |
| 5.00 | 0.00 | 0.05 | 0.03 | % | 0.01 | 0 | 0 | 4.91 | 0.00 | 0.01 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 7.50 | 0.00 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/19/2026 3:59:52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.50 | 0.00 | 0.30 | 0.15 | % | 0.30 | 0 | 0 | 5.80 | -0.34 | 1.06 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 1.00 | 0.10 | 1.00 | 0.55 | 0.45 | 0.00 | 0.00% | 0.55 | 0 | 10 | 0.00 | -0.73 | 0.93 | 0.00 | 10/16/2026 | 10/19/2026 3:59:52 PM EST |
| 1.50 | 0.40 | 1.00 | 0.70 | 0.90 | 0.00 | 0.00% | 0.47 | 0 | 1 | 2.56 | -0.89 | 0.53 | 0.00 | 10/16/2026 | 10/19/2026 3:59:52 PM EST |
| 2.00 | 0.95 | 1.95 | 1.45 | % | 0.72 | 0 | 0 | 0.00 | -0.95 | 0.29 | 0.00 | 10/19/2026 3:59:52 PM EST | |||
| 2.50 | 1.45 | 2.45 | 1.95 | 2.05 | 0.00 | 0.00% | 0.78 | 0 | 1 | 0.00 | -0.98 | 0.16 | 0.00 | 9/18/2026 | 10/19/2026 3:59:52 PM EST |
| 5.00 | 4.00 | 5.00 | 4.50 | 4.50 | 0.00 | 0.00% | 0.90 | 0 | 1 | 0.00 | -1.00 | 0.01 | 0.00 | 9/18/2026 | 10/19/2026 3:59:52 PM EST |
| 7.50 | 6.50 | 7.50 | 7.00 | 7.00 | 0.00 | 0.00% | 0.93 | 0 | 1 | 0.00 | -1.00 | 0.00 | 0.00 | 9/18/2026 | 10/19/2026 3:59:52 PM EST |