Contract OI history
Back to BACDec 18, 2026 EXPIRATION
BAC $55.00 Put
BAC261218P00055000
Latest saved OI15,856Oct 23, 2026
Last change+51vs previous saved observation
Saved market days12Oct 02, 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 | 15,856 | +51 |
| Oct 21, 2026 | 15,805 | +16 |
| Oct 16, 2026 | 15,789 | +28 |
| Oct 15, 2026 | 15,761 | +109 |
| Oct 14, 2026 | 15,652 | 0 |
| Oct 13, 2026 | 15,652 | -50 |
| Oct 09, 2026 | 15,702 | -27 |
| Oct 08, 2026 | 15,729 | 0 |
| Oct 07, 2026 | 15,729 | +76 |
| Oct 06, 2026 | 15,653 | +204 |
| Oct 05, 2026 | 15,449 | +2 |
| Oct 02, 2026 | 15,447 | No prior observation |