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Contract OI history

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Oct 23, 2026 EXPIRATION

MOS $21.50 Put

MOS261023P00021500

Latest saved OI1Oct 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 $21.50 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. 157780 2026-10-02: 141 OI2026-10-05: 143 OI2026-10-06: 143 OI2026-10-07: 143 OI2026-10-08: 157 OI2026-10-09: 157 OI2026-10-13: 155 OI2026-10-14: 155 OI2026-10-15: 155 OI2026-10-16: 155 OI2026-10-21: 1 OI2026-10-23: 1 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, 2026Viewing10
Oct 21, 20261-154
Oct 16, 20261550
Oct 15, 20261550
Oct 14, 20261550
Oct 13, 2026155-2
Oct 09, 20261570
Oct 08, 2026157+14
Oct 07, 20261430
Oct 06, 20261430
Oct 05, 2026143+2
Oct 02, 2026141No prior observation