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Contract OI history

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Nov 20, 2026 EXPIRATION

BCSF $10.00 Put

BCSF261120P00010000

Latest saved OI1,238Oct 20, 2026
Last change+780vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BCSF $10.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 1,2386190 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 175 OI2026-10-14: 175 OI2026-10-16: 458 OI2026-10-20: 1,238 OI Oct 02, 2026Oct 20, 2026

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

BCSF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1,238+780
Oct 16, 2026458+283
Oct 14, 20261750
Oct 13, 2026175+175
Oct 09, 202600
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation