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Contract OI history

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Nov 20, 2026 EXPIRATION

BLCO $13.00 Call

BLCO261120C00013000

Latest saved OI98Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLCO $13.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 98490 2026-10-02: 11 OI2026-10-05: 33 OI2026-10-06: 33 OI2026-10-07: 33 OI2026-10-08: 33 OI2026-10-09: 33 OI2026-10-13: 33 OI2026-10-14: 71 OI2026-10-16: 85 OI2026-10-20: 98 OI2026-10-23: 98 OI Oct 02, 2026Oct 23, 2026

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

BLCO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing980
Oct 20, 202698+13
Oct 16, 202685+14
Oct 14, 202671+38
Oct 13, 2026330
Oct 09, 2026330
Oct 08, 2026330
Oct 07, 2026330
Oct 06, 2026330
Oct 05, 202633+22
Oct 02, 202611No prior observation