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Contract OI history

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Nov 20, 2026 EXPIRATION

BCSF $10.00 Call

BCSF261120C00010000

Latest saved OI212Oct 20, 2026
Last change+125vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BCSF $10.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 2121060 2026-10-02: 25 OI2026-10-05: 25 OI2026-10-06: 25 OI2026-10-07: 15 OI2026-10-08: 15 OI2026-10-09: 15 OI2026-10-13: 87 OI2026-10-14: 87 OI2026-10-16: 87 OI2026-10-20: 212 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, 2026Viewing212+125
Oct 16, 2026870
Oct 14, 2026870
Oct 13, 202687+72
Oct 09, 2026150
Oct 08, 2026150
Oct 07, 202615-10
Oct 06, 2026250
Oct 05, 2026250
Oct 02, 202625No prior observation