OITracker Cboe delayed data

Contract OI history

Back to FIS

Dec 18, 2026 EXPIRATION

FIS $35.00 Put

FIS261218P00035000

Latest saved OI1,050Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FIS $35.00 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. 1,0665330 2026-10-02: 1,001 OI2026-10-05: 1,001 OI2026-10-06: 1,001 OI2026-10-07: 1,001 OI2026-10-08: 1,000 OI2026-10-09: 1,008 OI2026-10-13: 1,054 OI2026-10-14: 1,066 OI2026-10-15: 1,051 OI2026-10-16: 1,056 OI2026-10-21: 1,057 OI2026-10-23: 1,050 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, 2026Viewing1,050-7
Oct 21, 20261,057+1
Oct 16, 20261,056+5
Oct 15, 20261,051-15
Oct 14, 20261,066+12
Oct 13, 20261,054+46
Oct 09, 20261,008+8
Oct 08, 20261,000-1
Oct 07, 20261,0010
Oct 06, 20261,0010
Oct 05, 20261,0010
Oct 02, 20261,001No prior observation