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Contract OI history

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Oct 30, 2026 EXPIRATION

ASST $21.50 Put

ASST261030P00021500

Latest saved OI174Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ASST $21.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 174870 2026-10-09: 18 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-15: 39 OI2026-10-16: 42 OI2026-10-21: 170 OI2026-10-23: 174 OI Oct 09, 2026Oct 23, 2026

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

ASST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing174+4
Oct 21, 2026170+128
Oct 16, 202642+3
Oct 15, 202639+21
Oct 14, 2026180
Oct 13, 2026180
Oct 09, 202618No prior observation