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Contract OI history

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Nov 20, 2026 EXPIRATION

BLK $1300.00 Call

BLK261120C01300000

Latest saved OI2,098Oct 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 $1300.00 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. 2,0981,0490 2026-10-02: 2,014 OI2026-10-05: 2,014 OI2026-10-06: 2,014 OI2026-10-07: 2,014 OI2026-10-08: 2,014 OI2026-10-09: 2,014 OI2026-10-13: 2,016 OI2026-10-14: 2,016 OI2026-10-15: 2,016 OI2026-10-16: 2,017 OI2026-10-21: 2,098 OI2026-10-23: 2,098 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, 2026Viewing2,0980
Oct 21, 20262,098+81
Oct 16, 20262,017+1
Oct 15, 20262,0160
Oct 14, 20262,0160
Oct 13, 20262,016+2
Oct 09, 20262,0140
Oct 08, 20262,0140
Oct 07, 20262,0140
Oct 06, 20262,0140
Oct 05, 20262,0140
Oct 02, 20262,014No prior observation