Contract OI history
Back to CORTJan 21, 2028 EXPIRATION
CORT $160.00 Call
CORT280121C00160000
Latest saved OI589Oct 23, 2026
Last change+91vs previous saved observation
Saved market days7Oct 08, 2026 onwards
All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.
| Market date | Open interest | Change vs prior saved day |
|---|---|---|
| Oct 23, 2026Viewing | 589 | +91 |
| Oct 20, 2026 | 498 | +72 |
| Oct 16, 2026 | 426 | +75 |
| Oct 14, 2026 | 351 | +35 |
| Oct 13, 2026 | 316 | +57 |
| Oct 09, 2026 | 259 | +90 |
| Oct 08, 2026 | 169 | No prior observation |