OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

GIS $35.00 Put

GIS261218P00035000

Latest saved OI4,231Oct 23, 2026
Last change-27vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $35.00 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. 4,3982,1990 2026-10-02: 4,332 OI2026-10-05: 4,332 OI2026-10-06: 4,330 OI2026-10-07: 4,330 OI2026-10-08: 4,379 OI2026-10-09: 4,385 OI2026-10-13: 4,393 OI2026-10-14: 4,398 OI2026-10-15: 4,298 OI2026-10-16: 4,306 OI2026-10-21: 4,258 OI2026-10-23: 4,231 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, 2026Viewing4,231-27
Oct 21, 20264,258-48
Oct 16, 20264,306+8
Oct 15, 20264,298-100
Oct 14, 20264,398+5
Oct 13, 20264,393+8
Oct 09, 20264,385+6
Oct 08, 20264,379+49
Oct 07, 20264,3300
Oct 06, 20264,330-2
Oct 05, 20264,3320
Oct 02, 20264,332No prior observation