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Contract OI history

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Nov 20, 2026 EXPIRATION

TWST $240.00 Call

TWST261120C00240000

Latest saved OI31Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TWST $240.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 33160 2026-10-09: 33 OI2026-10-13: 32 OI2026-10-14: 32 OI2026-10-16: 32 OI2026-10-21: 31 OI2026-10-23: 31 OI Oct 09, 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, 2026Viewing310
Oct 21, 202631-1
Oct 16, 2026320
Oct 14, 2026320
Oct 13, 202632-1
Oct 09, 202633No prior observation