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Contract OI history

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Nov 20, 2026 EXPIRATION

MKSI $210.00 Put

MKSI261120P00210000

Latest saved OI133Oct 23, 2026
Last change+24vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MKSI $210.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 133660 2026-10-09: 13 OI2026-10-13: 13 OI2026-10-14: 13 OI2026-10-15: 16 OI2026-10-16: 23 OI2026-10-21: 109 OI2026-10-23: 133 OI Oct 09, 2026Oct 23, 2026

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

MKSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026133+24
Oct 21, 2026Viewing109+86
Oct 16, 202623+7
Oct 15, 202616+3
Oct 14, 2026130
Oct 13, 2026130
Oct 09, 202613No prior observation