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Contract OI history

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Oct 23, 2026 EXPIRATION

CMCSA $21.50 Call

CMCSA261023C00021500

Latest saved OI434Oct 23, 2026
Last change-143vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $21.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5772880 2026-10-09: 160 OI2026-10-13: 440 OI2026-10-14: 440 OI2026-10-15: 467 OI2026-10-16: 485 OI2026-10-21: 577 OI2026-10-23: 434 OI Oct 09, 2026Oct 23, 2026

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

CMCSA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing434-143
Oct 21, 2026577+92
Oct 16, 2026485+18
Oct 15, 2026467+27
Oct 14, 20264400
Oct 13, 2026440+280
Oct 09, 2026160No prior observation