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Contract OI history

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Dec 18, 2026 EXPIRATION

CMCSA $20.00 Call

CMCSA261218C00020000

Latest saved OI208Oct 23, 2026
Last change-8vs 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. 2161080 2026-10-09: 209 OI2026-10-13: 209 OI2026-10-14: 209 OI2026-10-15: 215 OI2026-10-16: 215 OI2026-10-21: 216 OI2026-10-23: 208 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, 2026Viewing208-8
Oct 21, 2026216+1
Oct 16, 20262150
Oct 15, 2026215+6
Oct 14, 20262090
Oct 13, 20262090
Oct 09, 2026209No prior observation