OITracker Cboe delayed data

Contract OI history

Back to MSFT

Apr 16, 2027 EXPIRATION

MSFT $390.00 Put

MSFT270416P00390000

Latest saved OI842Oct 23, 2026
Last change+202vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $390.00 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. 8424210 2026-10-09: 159 OI2026-10-13: 638 OI2026-10-14: 638 OI2026-10-15: 637 OI2026-10-16: 637 OI2026-10-21: 640 OI2026-10-23: 842 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, 2026Viewing842+202
Oct 21, 2026640+3
Oct 16, 20266370
Oct 15, 2026637-1
Oct 14, 20266380
Oct 13, 2026638+479
Oct 09, 2026159No prior observation