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Contract OI history

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Nov 20, 2026 EXPIRATION

MOS $21.00 Put

MOS261120P00021000

Latest saved OI1,894Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MOS $21.00 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. 1,9079530 2026-10-02: 172 OI2026-10-05: 1,761 OI2026-10-06: 1,778 OI2026-10-07: 1,778 OI2026-10-08: 1,825 OI2026-10-09: 1,907 OI2026-10-13: 1,907 OI2026-10-14: 1,899 OI2026-10-15: 1,896 OI2026-10-16: 1,896 OI2026-10-21: 1,891 OI2026-10-23: 1,894 OI Oct 02, 2026Oct 23, 2026

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

MOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,894+3
Oct 21, 2026Viewing1,891-5
Oct 16, 20261,8960
Oct 15, 20261,896-3
Oct 14, 20261,899-8
Oct 13, 20261,9070
Oct 09, 20261,907+82
Oct 08, 20261,825+47
Oct 07, 20261,7780
Oct 06, 20261,778+17
Oct 05, 20261,761+1,589
Oct 02, 2026172No prior observation