OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

GIS $27.50 Put

GIS261120P00027500

Latest saved OI317Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $27.50 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. 3201600 2026-10-02: 214 OI2026-10-05: 221 OI2026-10-06: 248 OI2026-10-07: 246 OI2026-10-08: 282 OI2026-10-09: 287 OI2026-10-13: 308 OI2026-10-14: 309 OI2026-10-15: 320 OI2026-10-16: 290 OI2026-10-21: 316 OI2026-10-23: 317 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, 2026Viewing317+1
Oct 21, 2026316+26
Oct 16, 2026290-30
Oct 15, 2026320+11
Oct 14, 2026309+1
Oct 13, 2026308+21
Oct 09, 2026287+5
Oct 08, 2026282+36
Oct 07, 2026246-2
Oct 06, 2026248+27
Oct 05, 2026221+7
Oct 02, 2026214No prior observation