OITracker Cboe delayed data

Contract OI history

Back to S

Oct 30, 2026 EXPIRATION

S $21.00 Put

S261030P00021000

Latest saved OI20Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
S $21.00 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. 26130 2026-10-02: 26 OI2026-10-05: 24 OI2026-10-06: 18 OI2026-10-07: 18 OI2026-10-08: 18 OI2026-10-09: 18 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-15: 19 OI2026-10-16: 19 OI2026-10-21: 19 OI2026-10-23: 20 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, 2026Viewing20+1
Oct 21, 2026190
Oct 16, 2026190
Oct 15, 2026190
Oct 14, 2026190
Oct 13, 202619+1
Oct 09, 2026180
Oct 08, 2026180
Oct 07, 2026180
Oct 06, 202618-6
Oct 05, 202624-2
Oct 02, 202626No prior observation