OITracker Cboe delayed data

Contract OI history

Back to P

May 21, 2027 EXPIRATION

P $150.00 Put

P270521P00150000

Latest saved OI37Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
P $150.00 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. 37180 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 2 OI2026-10-07: 2 OI2026-10-08: 2 OI2026-10-09: 2 OI2026-10-13: 3 OI2026-10-14: 3 OI2026-10-15: 13 OI2026-10-16: 13 OI2026-10-21: 30 OI2026-10-23: 37 OI Oct 02, 2026Oct 23, 2026

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

P contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202637+7
Oct 21, 2026Viewing30+17
Oct 16, 2026130
Oct 15, 202613+10
Oct 14, 202630
Oct 13, 20263+1
Oct 09, 202620
Oct 08, 202620
Oct 07, 202620
Oct 06, 202620
Oct 05, 202620
Oct 02, 20262No prior observation