OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

S $13.00 Put

S280121P00013000

Latest saved OI396Oct 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 $13.00 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. 4022010 2026-10-02: 384 OI2026-10-05: 383 OI2026-10-06: 383 OI2026-10-07: 383 OI2026-10-08: 383 OI2026-10-09: 402 OI2026-10-13: 401 OI2026-10-14: 401 OI2026-10-15: 401 OI2026-10-16: 401 OI2026-10-21: 396 OI2026-10-23: 396 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, 2026Viewing3960
Oct 21, 2026396-5
Oct 16, 20264010
Oct 15, 20264010
Oct 14, 20264010
Oct 13, 2026401-1
Oct 09, 2026402+19
Oct 08, 20263830
Oct 07, 20263830
Oct 06, 20263830
Oct 05, 2026383-1
Oct 02, 2026384No prior observation