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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $330.00 Put

MSFT281215P00330000

Latest saved OI5,296Oct 23, 2026
Last change+263vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $330.00 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. 5,2962,6480 2026-10-09: 4,954 OI2026-10-13: 4,954 OI2026-10-14: 4,954 OI2026-10-15: 4,946 OI2026-10-16: 4,945 OI2026-10-21: 5,033 OI2026-10-23: 5,296 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, 2026Viewing5,296+263
Oct 21, 20265,033+88
Oct 16, 20264,945-1
Oct 15, 20264,946-8
Oct 14, 20264,9540
Oct 13, 20264,9540
Oct 09, 20264,954No prior observation