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Contract OI history

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Nov 20, 2026 EXPIRATION

MFA $8.00 Put

MFA261120P00008000

Latest saved OI0Oct 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
MFA $8.00 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. 22110 2026-10-02: 14 OI2026-10-06: 22 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 22 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-16: 8 OI2026-10-20: 1 OI2026-10-23: 0 OI Oct 02, 2026Oct 23, 2026

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

MFA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20260-1
Oct 20, 2026Viewing1-7
Oct 16, 202680
Oct 14, 202680
Oct 13, 20268-14
Oct 09, 2026220
Oct 08, 2026220
Oct 07, 2026220
Oct 06, 202622+8
Oct 02, 202614No prior observation