OITracker Cboe delayed data

Contract OI history

Back to CAR

Dec 18, 2026 EXPIRATION

CAR $40.00 Put

CAR261218P00040000

Latest saved OI167Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CAR $40.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 167830 2026-10-09: 167 OI2026-10-13: 167 OI2026-10-14: 167 OI2026-10-15: 167 OI2026-10-16: 167 OI2026-10-21: 167 OI2026-10-23: 167 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CAR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1670
Oct 21, 20261670
Oct 16, 20261670
Oct 15, 20261670
Oct 14, 20261670
Oct 13, 20261670
Oct 09, 2026167No prior observation