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Contract OI history

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Jan 21, 2028 EXPIRATION

CMCSA $37.50 Call

CMCSA280121C00037500

Latest saved OI6,565Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $37.50 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. 6,5663,2830 2026-10-09: 6,566 OI2026-10-13: 6,566 OI2026-10-14: 6,566 OI2026-10-15: 6,566 OI2026-10-16: 6,566 OI2026-10-21: 6,566 OI2026-10-23: 6,565 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, 2026Viewing6,565-1
Oct 21, 20266,5660
Oct 16, 20266,5660
Oct 15, 20266,5660
Oct 14, 20266,5660
Oct 13, 20266,5660
Oct 09, 20266,566No prior observation