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Contract OI history

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Jan 21, 2028 EXPIRATION

BLK $1050.00 Call

BLK280121C01050000

Latest saved OI9Oct 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 $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. 1050 2026-10-02: 10 OI2026-10-05: 10 OI2026-10-06: 10 OI2026-10-07: 10 OI2026-10-08: 10 OI2026-10-09: 9 OI2026-10-13: 9 OI2026-10-14: 9 OI2026-10-15: 9 OI2026-10-16: 9 OI2026-10-21: 9 OI2026-10-23: 9 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, 2026Viewing90
Oct 21, 202690
Oct 16, 202690
Oct 15, 202690
Oct 14, 202690
Oct 13, 202690
Oct 09, 20269-1
Oct 08, 2026100
Oct 07, 2026100
Oct 06, 2026100
Oct 05, 2026100
Oct 02, 202610No prior observation