OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

GIS $20.00 Put

GIS280121P00020000

Latest saved OI253Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $20.00 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. 2601300 2026-10-02: 260 OI2026-10-05: 260 OI2026-10-06: 260 OI2026-10-07: 247 OI2026-10-08: 249 OI2026-10-09: 249 OI2026-10-13: 248 OI2026-10-14: 248 OI2026-10-15: 253 OI2026-10-16: 253 OI2026-10-21: 253 OI2026-10-23: 253 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, 2026Viewing2530
Oct 21, 20262530
Oct 16, 20262530
Oct 15, 2026253+5
Oct 14, 20262480
Oct 13, 2026248-1
Oct 09, 20262490
Oct 08, 2026249+2
Oct 07, 2026247-13
Oct 06, 20262600
Oct 05, 20262600
Oct 02, 2026260No prior observation