OITracker Cboe delayed data

Contract OI history

Back to MU

Jan 21, 2028 EXPIRATION

MU $55.00 Put

MU280121P00055000

Latest saved OI273Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MU $55.00 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. 2731360 2026-10-09: 207 OI2026-10-13: 239 OI2026-10-14: 239 OI2026-10-15: 239 OI2026-10-16: 266 OI2026-10-21: 273 OI2026-10-23: 273 OI Oct 09, 2026Oct 23, 2026

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

MU contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2730
Oct 21, 2026273+7
Oct 16, 2026266+27
Oct 15, 20262390
Oct 14, 20262390
Oct 13, 2026239+32
Oct 09, 2026207No prior observation