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Contract OI history

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Dec 18, 2026 EXPIRATION

VMRK $42.50 Put

VMRK261218P00042500

Latest saved OI145Oct 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 $42.50 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. 145720 2026-10-02: 91 OI2026-10-05: 92 OI2026-10-06: 92 OI2026-10-07: 101 OI2026-10-08: 101 OI2026-10-09: 101 OI2026-10-13: 101 OI2026-10-14: 101 OI2026-10-16: 101 OI2026-10-20: 145 OI2026-10-23: 145 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, 20261450
Oct 20, 2026Viewing145+44
Oct 16, 20261010
Oct 14, 20261010
Oct 13, 20261010
Oct 09, 20261010
Oct 08, 20261010
Oct 07, 2026101+9
Oct 06, 2026920
Oct 05, 202692+1
Oct 02, 202691No prior observation