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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $335.00 Put

MSFT270115P00335000

Latest saved OI2,271Oct 23, 2026
Last change+173vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $335.00 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. 2,2711,1350 2026-10-09: 2,103 OI2026-10-13: 2,104 OI2026-10-14: 2,104 OI2026-10-15: 2,100 OI2026-10-16: 2,100 OI2026-10-21: 2,098 OI2026-10-23: 2,271 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, 2026Viewing2,271+173
Oct 21, 20262,098-2
Oct 16, 20262,1000
Oct 15, 20262,100-4
Oct 14, 20262,1040
Oct 13, 20262,104+1
Oct 09, 20262,103No prior observation