OITracker Cboe delayed data

Contract OI history

Back to FIS

Jan 21, 2028 EXPIRATION

FIS $40.00 Put

FIS280121P00040000

Latest saved OI1,081Oct 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
FIS $40.00 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. 1,0925460 2026-10-02: 1,092 OI2026-10-05: 1,092 OI2026-10-06: 1,082 OI2026-10-07: 1,082 OI2026-10-08: 1,082 OI2026-10-09: 1,082 OI2026-10-13: 1,082 OI2026-10-14: 1,082 OI2026-10-15: 1,082 OI2026-10-16: 1,082 OI2026-10-21: 1,082 OI2026-10-23: 1,081 OI Oct 02, 2026Oct 23, 2026

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

FIS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,081-1
Oct 21, 20261,0820
Oct 16, 20261,0820
Oct 15, 20261,0820
Oct 14, 20261,0820
Oct 13, 20261,0820
Oct 09, 20261,0820
Oct 08, 20261,0820
Oct 07, 20261,0820
Oct 06, 20261,082-10
Oct 05, 20261,0920
Oct 02, 20261,092No prior observation