OITracker Cboe delayed data

Contract OI history

Back to GIS

Apr 16, 2027 EXPIRATION

GIS $37.50 Call

GIS270416C00037500

Latest saved OI2,642Oct 23, 2026
Last change+203vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GIS $37.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,6421,3210 2026-10-02: 2,341 OI2026-10-05: 2,341 OI2026-10-06: 2,345 OI2026-10-07: 2,346 OI2026-10-08: 2,346 OI2026-10-09: 2,354 OI2026-10-13: 2,412 OI2026-10-14: 2,416 OI2026-10-15: 2,418 OI2026-10-16: 2,421 OI2026-10-21: 2,439 OI2026-10-23: 2,642 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, 2026Viewing2,642+203
Oct 21, 20262,439+18
Oct 16, 20262,421+3
Oct 15, 20262,418+2
Oct 14, 20262,416+4
Oct 13, 20262,412+58
Oct 09, 20262,354+8
Oct 08, 20262,3460
Oct 07, 20262,346+1
Oct 06, 20262,345+4
Oct 05, 20262,3410
Oct 02, 20262,341No prior observation