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Contract OI history

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Dec 17, 2027 EXPIRATION

CMCSA $20.00 Call

CMCSA271217C00020000

Latest saved OI477Oct 23, 2026
Last change+399vs 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. 4772380 2026-10-09: 102 OI2026-10-13: 102 OI2026-10-14: 102 OI2026-10-15: 79 OI2026-10-16: 78 OI2026-10-21: 78 OI2026-10-23: 477 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, 2026Viewing477+399
Oct 21, 2026780
Oct 16, 202678-1
Oct 15, 202679-23
Oct 14, 20261020
Oct 13, 20261020
Oct 09, 2026102No prior observation