OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MFC $42.00 Put

MFC261120P00042000

Latest saved OI501Oct 23, 2026
Last change+1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MFC $42.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5012500 2026-10-02: 431 OI2026-10-05: 431 OI2026-10-06: 431 OI2026-10-07: 431 OI2026-10-08: 431 OI2026-10-13: 431 OI2026-10-14: 433 OI2026-10-16: 440 OI2026-10-20: 500 OI2026-10-23: 501 OI Oct 02, 2026Oct 23, 2026

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

MFC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing501+1
Oct 20, 2026500+60
Oct 16, 2026440+7
Oct 14, 2026433+2
Oct 13, 20264310
Oct 08, 20264310
Oct 07, 20264310
Oct 06, 20264310
Oct 05, 20264310
Oct 02, 2026431No prior observation