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Contract OI history

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Dec 18, 2026 EXPIRATION

VSTM $12.00 Call

VSTM261218C00012000

Latest saved OI317Oct 23, 2026
Last change+11vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
VSTM $12.00 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. 3171580 2026-10-08: 286 OI2026-10-09: 286 OI2026-10-13: 286 OI2026-10-14: 290 OI2026-10-15: 294 OI2026-10-16: 300 OI2026-10-21: 306 OI2026-10-23: 317 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, 2026Viewing317+11
Oct 21, 2026306+6
Oct 16, 2026300+6
Oct 15, 2026294+4
Oct 14, 2026290+4
Oct 13, 20262860
Oct 09, 20262860
Oct 08, 2026286No prior observation