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Contract OI history

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Nov 20, 2026 EXPIRATION

TWST $115.00 Put

TWST261120P00115000

Latest saved OI723Oct 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 $115.00 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. 1,0215100 2026-10-09: 1,018 OI2026-10-13: 1,021 OI2026-10-14: 1,021 OI2026-10-16: 1,020 OI2026-10-21: 723 OI2026-10-23: 723 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, 2026Viewing7230
Oct 21, 2026723-297
Oct 16, 20261,020-1
Oct 14, 20261,0210
Oct 13, 20261,021+3
Oct 09, 20261,018No prior observation