Options Chain for ENERGY RECOVERY INC COM (ERII) - $7.23 as of 11/9/2026 4:27:49 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 | 5.30 | 4.75 | 6.24 | 0.00 | 0.00% | 1.90 | 0 | 1 | 6.92 | 1.00 | 0.00 | 0.00 | 5/20/2026 | 11/9/2026 3:59:49 PM EST |
| 5.00 | 2.10 | 2.80 | 2.45 | 2.25 | +0.27 | +13.64% | 0.49 | 10 | 15 | 3.11 | 1.00 | 0.00 | 0.00 | 11/9/2026 | 11/9/2026 3:59:49 PM EST |
| 7.50 | 0.15 | 0.30 | 0.23 | 0.30 | +0.15 | +100.00% | 0.03 | 1 | 280 | 0.48 | 0.49 | 0.57 | -0.01 | 11/9/2026 | 11/9/2026 3:59:49 PM EST |
| 10.00 | 0.00 | 0.10 | 0.05 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 1,431 | 1.39 | 0.00 | 0.00 | 0.00 | 11/4/2026 | 11/9/2026 3:59:49 PM EST |
| 12.50 | 0.00 | 0.05 | 0.03 | 0.05 | +0.01 | +25.00% | 0.00 | 102 | 975 | 1.76 | 0.00 | 0.00 | 0.00 | 11/9/2026 | 11/9/2026 3:59:49 PM EST |
| 15.00 | 0.00 | 0.95 | 0.48 | 0.01 | 0.00 | 0.00% | 0.03 | 0 | 531 | 2.53 | 0.00 | 0.00 | 0.00 | 8/20/2026 | 11/9/2026 3:59:49 PM EST |
| 17.50 | 0.00 | 0.95 | 0.48 | 0.07 | 0.00 | 0.00% | 0.03 | 0 | 86 | 2.92 | 0.00 | 0.00 | 0.00 | 7/30/2026 | 11/9/2026 3:59:49 PM EST |
| 20.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 1,582 | 2.88 | 0.00 | 0.00 | 0.00 | 8/3/2026 | 11/9/2026 3:59:49 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 | 8.63 | 0.00 | 0.00 | 0.00 | 11/9/2026 3:59:49 PM EST | |||
| 5.00 | 0.00 | 0.15 | 0.08 | 0.05 | 0.00 | 0.00% | 0.02 | 0 | 13 | 2.06 | 0.00 | 0.00 | 0.00 | 11/3/2026 | 11/9/2026 3:59:49 PM EST |
| 7.50 | 0.00 | 0.40 | 0.20 | 0.35 | -0.90 | -72.00% | 0.03 | 10,036 | 22,731 | 0.62 | -0.51 | 0.57 | -0.01 | 11/9/2026 | 11/9/2026 3:59:49 PM EST |
| 10.00 | 2.20 | 3.20 | 2.70 | 3.30 | 0.00 | 0.00% | 0.27 | 0 | 53 | 2.64 | -1.00 | 0.00 | 0.00 | 11/5/2026 | 11/9/2026 3:59:49 PM EST |
| 12.50 | 4.70 | 5.80 | 5.25 | % | 0.42 | 0 | 0 | 3.72 | -1.00 | 0.00 | 0.00 | 11/9/2026 3:59:49 PM EST | |||
| 15.00 | 7.00 | 8.30 | 7.65 | % | 0.51 | 0 | 0 | 4.36 | -1.00 | 0.00 | 0.00 | 11/9/2026 3:59:49 PM EST | |||
| 17.50 | 9.50 | 10.80 | 10.15 | 8.99 | 0.00 | 0.00% | 0.58 | 0 | 1 | 4.87 | -1.00 | 0.00 | 0.00 | 6/16/2026 | 11/9/2026 3:59:49 PM EST |
| 20.00 | 11.80 | 13.30 | 12.55 | 11.49 | 0.00 | 0.00% | 0.63 | 0 | 0 | 5.30 | -1.00 | 0.00 | 0.00 | 6/16/2026 | 11/9/2026 3:59:49 PM EST |