OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

VMRK $55.00 Put

VMRK270115P00055000

Latest saved OI101Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
VMRK $55.00 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. 101500 2026-10-02: 4 OI2026-10-05: 4 OI2026-10-06: 5 OI2026-10-07: 5 OI2026-10-08: 5 OI2026-10-09: 5 OI2026-10-13: 94 OI2026-10-14: 94 OI2026-10-16: 95 OI2026-10-20: 100 OI2026-10-23: 101 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, 2026101+1
Oct 20, 2026Viewing100+5
Oct 16, 202695+1
Oct 14, 2026940
Oct 13, 202694+89
Oct 09, 202650
Oct 08, 202650
Oct 07, 202650
Oct 06, 20265+1
Oct 05, 202640
Oct 02, 20264No prior observation