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Contract OI history

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Dec 18, 2026 EXPIRATION

VMRK $57.50 Put

VMRK261218P00057500

Latest saved OI236Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VMRK $57.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2361180 2026-10-02: 160 OI2026-10-05: 160 OI2026-10-06: 160 OI2026-10-07: 160 OI2026-10-08: 160 OI2026-10-09: 160 OI2026-10-13: 160 OI2026-10-14: 227 OI2026-10-16: 227 OI2026-10-20: 236 OI2026-10-23: 236 OI Oct 02, 2026Oct 23, 2026

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

VMRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20262360
Oct 20, 2026Viewing236+9
Oct 16, 20262270
Oct 14, 2026227+67
Oct 13, 20261600
Oct 09, 20261600
Oct 08, 20261600
Oct 07, 20261600
Oct 06, 20261600
Oct 05, 20261600
Oct 02, 2026160No prior observation