Options Chain for KEROS THERAPEUTICS INC COM (KROS) - $15.03 as of 10/30/2025 8:52:56 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 | 10.00 | 15.00 | 12.50 | % | 5.00 | 0 | 0 | 0.00 | 1.00 | 0.00 | 0.00 | 10/30/2025 3:59:59 PM EST | |||
| 5.00 | 7.50 | 12.50 | 10.00 | 8.70 | 0.00 | 0.00% | 2.00 | 0 | 2 | 6.95 | 1.00 | 0.00 | 0.00 | 8/7/2025 | 10/30/2025 3:59:59 PM EST | 
| 7.50 | 5.50 | 10.00 | 7.75 | % | 1.03 | 0 | 0 | 4.56 | 1.00 | 0.00 | 0.00 | 10/30/2025 3:59:59 PM EST | |||
| 10.00 | 3.00 | 7.50 | 5.25 | 5.10 | 0.00 | 0.00% | 0.53 | 0 | 8 | 3.24 | 1.00 | 0.03 | 0.00 | 7/23/2025 | 10/30/2025 3:59:59 PM EST | 
| 12.50 | 0.50 | 4.90 | 2.70 | 2.51 | 0.00 | 0.00% | 0.22 | 0 | 12 | 2.23 | 0.72 | 0.09 | -0.01 | 10/20/2025 | 10/30/2025 3:59:59 PM EST | 
| 15.00 | 0.35 | 2.50 | 1.43 | 1.30 | +0.42 | +47.73% | 0.10 | 1 | 334 | 0.91 | 0.49 | 0.08 | -0.01 | 10/30/2025 | 10/30/2025 3:59:59 PM EST | 
| 17.50 | 0.20 | 1.00 | 0.60 | 0.30 | 0.00 | 0.00% | 0.03 | 0 | 1,052 | 0.83 | 0.32 | 0.07 | -0.01 | 10/28/2025 | 10/30/2025 3:59:59 PM EST | 
| 20.00 | 0.00 | 0.10 | 0.05 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 526 | 0.67 | 0.21 | 0.05 | -0.01 | 10/23/2025 | 10/30/2025 3:59:59 PM EST | 
| 22.50 | 0.00 | 4.90 | 2.45 | 0.05 | 0.00 | 0.00% | 0.11 | 0 | 3 | 3.53 | 0.13 | 0.04 | -0.01 | 10/15/2025 | 10/30/2025 3:59:59 PM EST | 
| 25.00 | 0.00 | 4.90 | 2.45 | % | 0.10 | 0 | 0 | 3.71 | 0.08 | 0.03 | -0.01 | 10/30/2025 3:59:59 PM EST | |||
| 30.00 | 0.00 | 4.90 | 2.45 | % | 0.08 | 0 | 0 | 4.01 | 0.03 | 0.01 | 0.00 | 10/30/2025 3:59:59 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 | 4.90 | 2.45 | % | 0.98 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/30/2025 3:59:59 PM EST | |||
| 5.00 | 0.00 | 4.90 | 2.45 | % | 0.49 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10/30/2025 3:59:59 PM EST | |||
| 7.50 | 0.00 | 4.90 | 2.45 | 0.20 | 0.00 | 0.00% | 0.33 | 0 | 133 | 6.06 | 0.00 | 0.00 | 0.00 | 10/23/2025 | 10/30/2025 3:59:59 PM EST | 
| 10.00 | 0.20 | 4.90 | 2.55 | 0.80 | 0.00 | 0.00% | 0.26 | 0 | 135 | 2.43 | 0.00 | 0.03 | 0.00 | 10/17/2025 | 10/30/2025 3:59:59 PM EST | 
| 12.50 | 0.60 | 2.95 | 1.78 | 0.85 | 0.00 | 0.00% | 0.14 | 0 | 674 | 1.17 | -0.28 | 0.09 | -0.01 | 10/29/2025 | 10/30/2025 3:59:59 PM EST | 
| 15.00 | 2.00 | 4.80 | 3.40 | 3.60 | 0.00 | 0.00% | 0.23 | 0 | 252 | 1.21 | -0.51 | 0.08 | -0.01 | 10/17/2025 | 10/30/2025 3:59:59 PM EST | 
| 17.50 | 2.60 | 7.00 | 4.80 | 4.30 | 0.00 | 0.00% | 0.27 | 0 | 1 | 2.12 | -0.68 | 0.07 | -0.01 | 7/16/2025 | 10/30/2025 3:59:59 PM EST | 
| 20.00 | 4.60 | 9.00 | 6.80 | 6.75 | 0.00 | 0.00% | 0.34 | 0 | 1,020 | 2.14 | -0.79 | 0.05 | -0.01 | 10/27/2025 | 10/30/2025 3:59:59 PM EST | 
| 22.50 | 7.00 | 11.50 | 9.25 | 10.40 | 0.00 | 0.00% | 0.41 | 0 | 560 | 2.36 | -0.87 | 0.04 | -0.01 | 10/15/2025 | 10/30/2025 3:59:59 PM EST | 
| 25.00 | 9.50 | 14.00 | 11.75 | % | 0.47 | 0 | 0 | 2.54 | -0.92 | 0.03 | -0.01 | 10/30/2025 3:59:59 PM EST | |||
| 30.00 | 14.50 | 19.00 | 16.75 | 16.05 | 0.00 | 0.00% | 0.56 | 0 | 4 | 2.84 | -0.97 | 0.01 | 0.00 | 10/27/2025 | 10/30/2025 3:59:59 PM EST |