OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ELF $40.00 Put

ELF270115P00040000

Latest saved OI307Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ELF $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. 3101550 2026-10-02: 310 OI2026-10-05: 310 OI2026-10-06: 310 OI2026-10-07: 310 OI2026-10-08: 310 OI2026-10-09: 310 OI2026-10-13: 310 OI2026-10-14: 310 OI2026-10-15: 310 OI2026-10-16: 308 OI2026-10-21: 307 OI2026-10-23: 307 OI Oct 02, 2026Oct 23, 2026

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

ELF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3070
Oct 21, 2026307-1
Oct 16, 2026308-2
Oct 15, 20263100
Oct 14, 20263100
Oct 13, 20263100
Oct 09, 20263100
Oct 08, 20263100
Oct 07, 20263100
Oct 06, 20263100
Oct 05, 20263100
Oct 02, 2026310No prior observation