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Contract OI history

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Oct 30, 2026 EXPIRATION

CMCSA $21.00 Call

CMCSA261030C00021000

Latest saved OI637Oct 23, 2026
Last change+345vs 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. 6373180 2026-10-09: 346 OI2026-10-13: 330 OI2026-10-14: 330 OI2026-10-15: 328 OI2026-10-16: 260 OI2026-10-21: 292 OI2026-10-23: 637 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, 2026Viewing637+345
Oct 21, 2026292+32
Oct 16, 2026260-68
Oct 15, 2026328-2
Oct 14, 20263300
Oct 13, 2026330-16
Oct 09, 2026346No prior observation