OITracker Cboe delayed data

Contract OI history

Back to M

Nov 20, 2026 EXPIRATION

M $20.00 Put

M261120P00020000

Latest saved OI767Oct 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
M $20.00 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. 7673830 2026-10-02: 287 OI2026-10-05: 287 OI2026-10-06: 439 OI2026-10-07: 499 OI2026-10-08: 499 OI2026-10-09: 733 OI2026-10-13: 744 OI2026-10-14: 744 OI2026-10-15: 744 OI2026-10-16: 739 OI2026-10-21: 760 OI2026-10-23: 767 OI Oct 02, 2026Oct 23, 2026

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

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing767+7
Oct 21, 2026760+21
Oct 16, 2026739-5
Oct 15, 20267440
Oct 14, 20267440
Oct 13, 2026744+11
Oct 09, 2026733+234
Oct 08, 20264990
Oct 07, 2026499+60
Oct 06, 2026439+152
Oct 05, 20262870
Oct 02, 2026287No prior observation