OITracker Cboe delayed data

Contract OI history

Back to GIS

Jan 21, 2028 EXPIRATION

GIS $37.50 Put

GIS280121P00037500

Latest saved OI982Oct 23, 2026
Last change+41vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $37.50 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. 9824910 2026-10-02: 961 OI2026-10-05: 940 OI2026-10-06: 940 OI2026-10-07: 940 OI2026-10-08: 940 OI2026-10-09: 941 OI2026-10-13: 941 OI2026-10-14: 941 OI2026-10-15: 941 OI2026-10-16: 941 OI2026-10-21: 941 OI2026-10-23: 982 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, 2026Viewing982+41
Oct 21, 20269410
Oct 16, 20269410
Oct 15, 20269410
Oct 14, 20269410
Oct 13, 20269410
Oct 09, 2026941+1
Oct 08, 20269400
Oct 07, 20269400
Oct 06, 20269400
Oct 05, 2026940-21
Oct 02, 2026961No prior observation