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Contract OI history

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Jan 15, 2027 EXPIRATION

CMCSA $21.00 Call

CMCSA270115C00021000

Latest saved OI918Oct 23, 2026
Last change-344vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $21.00 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. 1,2626310 2026-10-09: 637 OI2026-10-13: 921 OI2026-10-14: 921 OI2026-10-15: 793 OI2026-10-16: 836 OI2026-10-21: 1,262 OI2026-10-23: 918 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, 2026Viewing918-344
Oct 21, 20261,262+426
Oct 16, 2026836+43
Oct 15, 2026793-128
Oct 14, 20269210
Oct 13, 2026921+284
Oct 09, 2026637No prior observation