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Contract OI history

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Oct 23, 2026 EXPIRATION

COST $960.00 Put

COST261023P00960000

Latest saved OI739Oct 23, 2026
Last change+50vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $960.00 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. 7393690 2026-10-09: 15 OI2026-10-13: 363 OI2026-10-14: 363 OI2026-10-15: 380 OI2026-10-16: 391 OI2026-10-21: 689 OI2026-10-23: 739 OI Oct 09, 2026Oct 23, 2026

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

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing739+50
Oct 21, 2026689+298
Oct 16, 2026391+11
Oct 15, 2026380+17
Oct 14, 20263630
Oct 13, 2026363+348
Oct 09, 202615No prior observation