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Contract OI history

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Jan 21, 2028 EXPIRATION

VSTM $10.00 Call

VSTM280121C00010000

Latest saved OI277Oct 23, 2026
Last change+35vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
VSTM $10.00 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2771380 2026-10-08: 195 OI2026-10-09: 195 OI2026-10-13: 195 OI2026-10-14: 195 OI2026-10-15: 206 OI2026-10-16: 237 OI2026-10-21: 242 OI2026-10-23: 277 OI Oct 08, 2026Oct 23, 2026

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

VSTM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026277+35
Oct 21, 2026Viewing242+5
Oct 16, 2026237+31
Oct 15, 2026206+11
Oct 14, 20261950
Oct 13, 20261950
Oct 09, 20261950
Oct 08, 2026195No prior observation