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Contract OI history

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Jan 21, 2028 EXPIRATION

CMCSA $27.50 Call

CMCSA280121C00027500

Latest saved OI2,061Oct 23, 2026
Last change-9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $27.50 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. 2,0811,0400 2026-10-09: 1,922 OI2026-10-13: 2,081 OI2026-10-14: 2,081 OI2026-10-15: 2,081 OI2026-10-16: 2,080 OI2026-10-21: 2,070 OI2026-10-23: 2,061 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, 2026Viewing2,061-9
Oct 21, 20262,070-10
Oct 16, 20262,080-1
Oct 15, 20262,0810
Oct 14, 20262,0810
Oct 13, 20262,081+159
Oct 09, 20261,922No prior observation