OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

GIS $37.50 Put

GIS261218P00037500

Latest saved OI892Oct 23, 2026
Last change-50vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $37.50 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. 9934960 2026-10-02: 979 OI2026-10-05: 979 OI2026-10-06: 979 OI2026-10-07: 983 OI2026-10-08: 983 OI2026-10-09: 980 OI2026-10-13: 984 OI2026-10-14: 993 OI2026-10-15: 954 OI2026-10-16: 945 OI2026-10-21: 942 OI2026-10-23: 892 OI Oct 02, 2026Oct 23, 2026

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

GIS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing892-50
Oct 21, 2026942-3
Oct 16, 2026945-9
Oct 15, 2026954-39
Oct 14, 2026993+9
Oct 13, 2026984+4
Oct 09, 2026980-3
Oct 08, 20269830
Oct 07, 2026983+4
Oct 06, 20269790
Oct 05, 20269790
Oct 02, 2026979No prior observation