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Contract OI history

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Nov 20, 2026 EXPIRATION

TWST $195.00 Call

TWST261120C00195000

Latest saved OI245Oct 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 $195.00 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. 2451220 2026-10-09: 232 OI2026-10-13: 232 OI2026-10-14: 227 OI2026-10-16: 222 OI2026-10-21: 245 OI2026-10-23: 245 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, 2026Viewing2450
Oct 21, 2026245+23
Oct 16, 2026222-5
Oct 14, 2026227-5
Oct 13, 20262320
Oct 09, 2026232No prior observation