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Contract OI history

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Dec 18, 2026 EXPIRATION

MOS $21.00 Put

MOS261218P00021000

Latest saved OI1,489Oct 23, 2026
Last change0vs 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. 1,4917450 2026-10-02: 1,380 OI2026-10-05: 1,436 OI2026-10-06: 1,458 OI2026-10-07: 1,458 OI2026-10-08: 1,456 OI2026-10-09: 1,415 OI2026-10-13: 1,415 OI2026-10-14: 1,464 OI2026-10-15: 1,488 OI2026-10-16: 1,491 OI2026-10-21: 1,489 OI2026-10-23: 1,489 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, 20261,4890
Oct 21, 2026Viewing1,489-2
Oct 16, 20261,491+3
Oct 15, 20261,488+24
Oct 14, 20261,464+49
Oct 13, 20261,4150
Oct 09, 20261,415-41
Oct 08, 20261,456-2
Oct 07, 20261,4580
Oct 06, 20261,458+22
Oct 05, 20261,436+56
Oct 02, 20261,380No prior observation