Options Chain for ENERGY RECOVERY INC COM (ERII) - $7.89 as of 8/24/2026 5:12:54 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 | 4.20 | 6.80 | 5.50 | 6.24 | 0.00 | 0.00% | 2.20 | 0 | 1 | 4.74 | 1.00 | 0.00 | 0.00 | 5/20/2026 | 8/24/2026 3:59:51 PM EST |
| 5.00 | 1.80 | 4.20 | 3.00 | 4.20 | 0.00 | 0.00% | 0.60 | 0 | 14 | 2.14 | 0.94 | 0.05 | 0.00 | 6/23/2026 | 8/24/2026 3:59:51 PM EST |
| 7.50 | 0.80 | 1.55 | 1.18 | 1.06 | 0.00 | 0.00% | 0.16 | 0 | 125 | 0.65 | 0.63 | 0.16 | -0.01 | 8/20/2026 | 8/24/2026 3:59:51 PM EST |
| 10.00 | 0.20 | 0.40 | 0.30 | 0.35 | +0.01 | +2.95% | 0.03 | 18 | 1,081 | 0.59 | 0.28 | 0.14 | -0.01 | 8/24/2026 | 8/24/2026 3:59:51 PM EST |
| 12.50 | 0.05 | 0.20 | 0.13 | 0.12 | -0.10 | -45.46% | 0.01 | 5 | 937 | 0.66 | 0.10 | 0.07 | 0.00 | 8/24/2026 | 8/24/2026 3:59:51 PM EST |
| 15.00 | 0.00 | 0.20 | 0.10 | 0.01 | 0.00 | 0.00% | 0.01 | 0 | 531 | 0.96 | 0.03 | 0.03 | 0.00 | 8/20/2026 | 8/24/2026 3:59:51 PM EST |
| 17.50 | 0.00 | 0.75 | 0.38 | 0.07 | 0.00 | 0.00% | 0.02 | 0 | 86 | 1.63 | 0.01 | 0.01 | 0.00 | 7/30/2026 | 8/24/2026 3:59:51 PM EST |
| 20.00 | 0.00 | 0.20 | 0.10 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 1,582 | 1.24 | 0.00 | 0.00 | 0.00 | 8/3/2026 | 8/24/2026 3:59:51 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 | 0.00 | 0.75 | 0.38 | % | 0.15 | 0 | 0 | 3.13 | 0.00 | 0.00 | 0.00 | 8/24/2026 3:59:51 PM EST | |||
| 5.00 | 0.00 | 0.25 | 0.13 | 0.12 | 0.00 | 0.00% | 0.03 | 0 | 3 | 0.96 | -0.06 | 0.05 | 0.00 | 6/11/2026 | 8/24/2026 3:59:51 PM EST |
| 7.50 | 0.60 | 0.90 | 0.75 | 0.75 | +0.10 | +15.39% | 0.10 | 5,020 | 17,570 | 0.63 | -0.37 | 0.16 | -0.01 | 8/24/2026 | 8/24/2026 3:59:51 PM EST |
| 10.00 | 2.00 | 2.90 | 2.45 | 2.15 | 0.00 | 0.00% | 0.25 | 0 | 48 | 0.96 | -0.72 | 0.14 | -0.01 | 8/6/2026 | 8/24/2026 3:59:51 PM EST |
| 12.50 | 3.30 | 5.90 | 4.60 | % | 0.37 | 0 | 0 | 1.64 | -0.90 | 0.07 | 0.00 | 8/24/2026 3:59:51 PM EST | |||
| 15.00 | 5.70 | 8.40 | 7.05 | % | 0.47 | 0 | 0 | 1.89 | -0.97 | 0.03 | 0.00 | 8/24/2026 3:59:51 PM EST | |||
| 17.50 | 8.20 | 10.90 | 9.55 | 8.99 | 0.00 | 0.00% | 0.55 | 0 | 1 | 2.08 | -0.99 | 0.01 | 0.00 | 6/16/2026 | 8/24/2026 3:59:51 PM EST |
| 20.00 | 10.70 | 13.30 | 12.00 | 11.49 | 0.00 | 0.00% | 0.60 | 0 | 0 | 2.18 | -1.00 | 0.00 | 0.00 | 6/16/2026 | 8/24/2026 3:59:51 PM EST |