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Contract OI history

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Nov 20, 2026 EXPIRATION

BLK $1050.00 Call

BLK261120C01050000

Latest saved OI112Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLK $1050.00 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. 112560 2026-10-02: 104 OI2026-10-05: 104 OI2026-10-06: 104 OI2026-10-07: 104 OI2026-10-08: 104 OI2026-10-09: 104 OI2026-10-13: 104 OI2026-10-14: 104 OI2026-10-15: 106 OI2026-10-16: 104 OI2026-10-21: 106 OI2026-10-23: 112 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, 2026Viewing112+6
Oct 21, 2026106+2
Oct 16, 2026104-2
Oct 15, 2026106+2
Oct 14, 20261040
Oct 13, 20261040
Oct 09, 20261040
Oct 08, 20261040
Oct 07, 20261040
Oct 06, 20261040
Oct 05, 20261040
Oct 02, 2026104No prior observation