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Contract OI history

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Dec 18, 2026 EXPIRATION

CMCSA $25.00 Put

CMCSA261218P00025000

Latest saved OI2,815Oct 23, 2026
Last change-15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CMCSA $25.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,8561,4280 2026-10-09: 2,856 OI2026-10-13: 2,833 OI2026-10-14: 2,833 OI2026-10-15: 2,832 OI2026-10-16: 2,832 OI2026-10-21: 2,830 OI2026-10-23: 2,815 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, 2026Viewing2,815-15
Oct 21, 20262,830-2
Oct 16, 20262,8320
Oct 15, 20262,832-1
Oct 14, 20262,8330
Oct 13, 20262,833-23
Oct 09, 20262,856No prior observation