OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

S $27.00 Put

S261120P00027000

Latest saved OI60Oct 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 $27.00 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. 60300 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 1 OI2026-10-07: 11 OI2026-10-08: 11 OI2026-10-09: 59 OI2026-10-13: 59 OI2026-10-14: 59 OI2026-10-15: 59 OI2026-10-16: 59 OI2026-10-21: 60 OI2026-10-23: 60 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, 2026Viewing600
Oct 21, 202660+1
Oct 16, 2026590
Oct 15, 2026590
Oct 14, 2026590
Oct 13, 2026590
Oct 09, 202659+48
Oct 08, 2026110
Oct 07, 202611+10
Oct 06, 202610
Oct 05, 202610
Oct 02, 20261No prior observation