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Contract OI history

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Mar 19, 2027 EXPIRATION

CMCSA $20.00 Call

CMCSA270319C00020000

Latest saved OI295Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $20.00 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. 3061530 2026-10-09: 189 OI2026-10-13: 247 OI2026-10-14: 247 OI2026-10-15: 247 OI2026-10-16: 306 OI2026-10-21: 296 OI2026-10-23: 295 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, 2026Viewing295-1
Oct 21, 2026296-10
Oct 16, 2026306+59
Oct 15, 20262470
Oct 14, 20262470
Oct 13, 2026247+58
Oct 09, 2026189No prior observation