OITracker Cboe delayed data

Contract OI history

Back to GIS

Jan 15, 2027 EXPIRATION

GIS $27.50 Put

GIS270115P00027500

Latest saved OI1,222Oct 23, 2026
Last change+26vs 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. 1,2226110 2026-10-02: 1,006 OI2026-10-05: 1,019 OI2026-10-06: 1,023 OI2026-10-07: 1,026 OI2026-10-08: 1,038 OI2026-10-09: 1,028 OI2026-10-13: 1,053 OI2026-10-14: 1,053 OI2026-10-15: 1,065 OI2026-10-16: 1,179 OI2026-10-21: 1,196 OI2026-10-23: 1,222 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, 2026Viewing1,222+26
Oct 21, 20261,196+17
Oct 16, 20261,179+114
Oct 15, 20261,065+12
Oct 14, 20261,0530
Oct 13, 20261,053+25
Oct 09, 20261,028-10
Oct 08, 20261,038+12
Oct 07, 20261,026+3
Oct 06, 20261,023+4
Oct 05, 20261,019+13
Oct 02, 20261,006No prior observation