OITracker Cboe delayed data

Contract OI history

Back to FER

Mar 19, 2027 EXPIRATION

FER $50.00 Put

FER270319P00050000

Latest saved OI146Oct 20, 2026
Last change+1vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
FER $50.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 146730 2026-10-08: 140 OI2026-10-09: 140 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-16: 145 OI2026-10-20: 146 OI Oct 08, 2026Oct 20, 2026

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

FER contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing146+1
Oct 16, 20261450
Oct 14, 20261450
Oct 13, 2026145+5
Oct 09, 20261400
Oct 08, 2026140No prior observation