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Contract OI history

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Dec 18, 2026 EXPIRATION

TWST $140.00 Put

TWST261218P00140000

Latest saved OI153Oct 23, 2026
Last change+151vs previous saved observation
Saved market days4Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
TWST $140.00 put open interest history 4 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 153760 2026-10-14: 0 OI2026-10-16: 0 OI2026-10-21: 2 OI2026-10-23: 153 OI Oct 14, 2026Oct 23, 2026

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

TWST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing153+151
Oct 21, 20262+2
Oct 16, 202600
Oct 14, 20260No prior observation