OITracker Cboe delayed data

Contract OI history

Back to ET

Nov 06, 2026 EXPIRATION

ET $19.50 Put

ET261106P00019500

Latest saved OI425Oct 08, 2026
Last change0vs previous saved observation
Saved market days5Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ET $19.50 put open interest history 5 saved observations from 2026-10-02 to 2026-10-08. Exact values and changes are listed in the table below. 4252120 2026-10-02: 229 OI2026-10-05: 225 OI2026-10-06: 424 OI2026-10-07: 425 OI2026-10-08: 425 OI Oct 02, 2026Oct 08, 2026

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

ET contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 08, 2026Viewing4250
Oct 07, 2026425+1
Oct 06, 2026424+199
Oct 05, 2026225-4
Oct 02, 2026229No prior observation