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Contract OI history

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Nov 20, 2026 EXPIRATION

TWST $150.00 Put

TWST261120P00150000

Latest saved OI171Oct 23, 2026
Last change+19vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TWST $150.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 171850 2026-10-09: 130 OI2026-10-13: 134 OI2026-10-14: 145 OI2026-10-16: 144 OI2026-10-21: 152 OI2026-10-23: 171 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, 2026Viewing171+19
Oct 21, 2026152+8
Oct 16, 2026144-1
Oct 14, 2026145+11
Oct 13, 2026134+4
Oct 09, 2026130No prior observation