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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $210.00 Put

MSFT281215P00210000

Latest saved OI1,242Oct 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
MSFT $210.00 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. 1,2486240 2026-10-09: 1,248 OI2026-10-13: 1,248 OI2026-10-14: 1,248 OI2026-10-15: 1,247 OI2026-10-16: 1,245 OI2026-10-21: 1,243 OI2026-10-23: 1,242 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, 2026Viewing1,242-1
Oct 21, 20261,243-2
Oct 16, 20261,245-2
Oct 15, 20261,247-1
Oct 14, 20261,2480
Oct 13, 20261,2480
Oct 09, 20261,248No prior observation