OITracker Cboe delayed data

Contract OI history

Back to O

Dec 18, 2026 EXPIRATION

O $52.50 Put

O261218P00052500

Latest saved OI1,432Oct 23, 2026
Last change+39vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
O $52.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,4327160 2026-10-02: 1,014 OI2026-10-05: 1,056 OI2026-10-06: 1,179 OI2026-10-07: 1,179 OI2026-10-08: 1,221 OI2026-10-09: 1,237 OI2026-10-13: 1,241 OI2026-10-14: 1,309 OI2026-10-15: 1,287 OI2026-10-16: 1,351 OI2026-10-21: 1,393 OI2026-10-23: 1,432 OI Oct 02, 2026Oct 23, 2026

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

O contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,432+39
Oct 21, 20261,393+42
Oct 16, 20261,351+64
Oct 15, 20261,287-22
Oct 14, 20261,309+68
Oct 13, 20261,241+4
Oct 09, 20261,237+16
Oct 08, 20261,221+42
Oct 07, 20261,1790
Oct 06, 20261,179+123
Oct 05, 20261,056+42
Oct 02, 20261,014No prior observation