Options Chain for RESEARCH FRONTIERS INC COM (REFR) - $1.00 as of 4/24/2026 1:56:38 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 | 0.10 | 0.05 | 0.05 | +0.03 | +150.00% | 0.02 | 2 | 3 | 3.80 | 0.00 | 0.00 | 0.00 | 4/24/2026 | 4/24/2026 4:00:02 PM EST |
| 5.00 | 0.00 | 0.10 | 0.05 | 0.05 | % | 0.01 | 1 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 4/24/2026 | 4/24/2026 4:00:02 PM EST | |
| 7.50 | 0.00 | 0.25 | 0.13 | % | 0.02 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 4/24/2026 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 | 0.85 | 2.50 | 1.68 | % | 0.67 | 0 | 0 | 0.00 | -1.00 | 0.00 | 0.00 | 4/24/2026 4:00:02 PM EST | |||
| 5.00 | 3.40 | 4.60 | 4.00 | % | 0.80 | 0 | 0 | 0.00 | -1.00 | 0.00 | 0.00 | 4/24/2026 4:00:02 PM EST | |||
| 7.50 | 5.80 | 7.30 | 6.55 | % | 0.87 | 0 | 0 | 0.00 | -1.00 | 0.00 | 0.00 | 4/24/2026 4:00:02 PM EST |