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Contract OI history

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Apr 16, 2027 EXPIRATION

BCSF $12.50 Put

BCSF270416P00012500

Latest saved OI350Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BCSF $12.50 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. 3501750 2026-10-02: 350 OI2026-10-05: 350 OI2026-10-06: 350 OI2026-10-07: 350 OI2026-10-08: 350 OI2026-10-09: 350 OI2026-10-13: 350 OI2026-10-14: 350 OI2026-10-16: 350 OI2026-10-20: 350 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, 2026Viewing3500
Oct 16, 20263500
Oct 14, 20263500
Oct 13, 20263500
Oct 09, 20263500
Oct 08, 20263500
Oct 07, 20263500
Oct 06, 20263500
Oct 05, 20263500
Oct 02, 2026350No prior observation