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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $420.00 Call

MSFT261120C00420000

Latest saved OI21,340Oct 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
MSFT $420.00 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. 21,39210,6960 2026-10-09: 21,392 OI2026-10-13: 21,386 OI2026-10-14: 21,386 OI2026-10-15: 21,357 OI2026-10-16: 21,355 OI2026-10-21: 21,355 OI2026-10-23: 21,340 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing21,340-15
Oct 21, 202621,3550
Oct 16, 202621,355-2
Oct 15, 202621,357-29
Oct 14, 202621,3860
Oct 13, 202621,386-6
Oct 09, 202621,392No prior observation