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Contract OI history

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Nov 20, 2026 EXPIRATION

BLK $1100.00 Call

BLK261120C01100000

Latest saved OI882Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLK $1100.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8844420 2026-10-02: 608 OI2026-10-05: 674 OI2026-10-06: 674 OI2026-10-07: 727 OI2026-10-08: 727 OI2026-10-09: 727 OI2026-10-13: 723 OI2026-10-14: 723 OI2026-10-15: 884 OI2026-10-16: 881 OI2026-10-21: 882 OI2026-10-23: 882 OI Oct 02, 2026Oct 23, 2026

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

BLK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8820
Oct 21, 2026882+1
Oct 16, 2026881-3
Oct 15, 2026884+161
Oct 14, 20267230
Oct 13, 2026723-4
Oct 09, 20267270
Oct 08, 20267270
Oct 07, 2026727+53
Oct 06, 20266740
Oct 05, 2026674+66
Oct 02, 2026608No prior observation