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Contract OI history

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Oct 30, 2026 EXPIRATION

CMCSA $20.50 Call

CMCSA261030C00020500

Latest saved OI72Oct 23, 2026
Last change+70vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $20.50 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. 72360 2026-10-09: 0 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 2 OI2026-10-16: 2 OI2026-10-21: 2 OI2026-10-23: 72 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, 2026Viewing72+70
Oct 21, 202620
Oct 16, 202620
Oct 15, 20262+1
Oct 14, 202610
Oct 13, 20261+1
Oct 09, 20260No prior observation