OITracker Cboe delayed data

Contract OI history

Back to S

Jan 21, 2028 EXPIRATION

S $25.00 Put

S280121P00025000

Latest saved OI17Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $25.00 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. 1890 2026-10-02: 17 OI2026-10-05: 18 OI2026-10-06: 17 OI2026-10-07: 17 OI2026-10-08: 17 OI2026-10-09: 16 OI2026-10-13: 16 OI2026-10-14: 16 OI2026-10-15: 16 OI2026-10-16: 16 OI2026-10-21: 17 OI2026-10-23: 17 OI Oct 02, 2026Oct 23, 2026

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

S contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing170
Oct 21, 202617+1
Oct 16, 2026160
Oct 15, 2026160
Oct 14, 2026160
Oct 13, 2026160
Oct 09, 202616-1
Oct 08, 2026170
Oct 07, 2026170
Oct 06, 202617-1
Oct 05, 202618+1
Oct 02, 202617No prior observation