OITracker Cboe delayed data

Contract OI history

Back to GFS

Nov 20, 2026 EXPIRATION

GFS $50.00 Put

GFS261120P00050000

Latest saved OI340Oct 23, 2026
Last change+16vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GFS $50.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3401700 2026-10-09: 116 OI2026-10-13: 125 OI2026-10-14: 125 OI2026-10-15: 266 OI2026-10-16: 280 OI2026-10-21: 324 OI2026-10-23: 340 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GFS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing340+16
Oct 21, 2026324+44
Oct 16, 2026280+14
Oct 15, 2026266+141
Oct 14, 20261250
Oct 13, 2026125+9
Oct 09, 2026116No prior observation