OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

GIS $37.50 Call

GIS261218C00037500

Latest saved OI3,395Oct 23, 2026
Last change+343vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $37.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,3951,6970 2026-10-02: 2,530 OI2026-10-05: 2,514 OI2026-10-06: 2,564 OI2026-10-07: 2,564 OI2026-10-08: 2,560 OI2026-10-09: 2,562 OI2026-10-13: 2,625 OI2026-10-14: 2,626 OI2026-10-15: 2,634 OI2026-10-16: 2,625 OI2026-10-21: 3,052 OI2026-10-23: 3,395 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, 2026Viewing3,395+343
Oct 21, 20263,052+427
Oct 16, 20262,625-9
Oct 15, 20262,634+8
Oct 14, 20262,626+1
Oct 13, 20262,625+63
Oct 09, 20262,562+2
Oct 08, 20262,560-4
Oct 07, 20262,5640
Oct 06, 20262,564+50
Oct 05, 20262,514-16
Oct 02, 20262,530No prior observation