OITracker Cboe delayed data

Contract OI history

Back to MOS

Oct 23, 2026 EXPIRATION

MOS $17.50 Put

MOS261023P00017500

Latest saved OI423Oct 23, 2026
Last change+41vs previous saved observation
Saved market days5Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
MOS $17.50 put open interest history 5 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 4232110 2026-10-14: 0 OI2026-10-15: 1 OI2026-10-16: 104 OI2026-10-21: 382 OI2026-10-23: 423 OI Oct 14, 2026Oct 23, 2026

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

MOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing423+41
Oct 21, 2026382+278
Oct 16, 2026104+103
Oct 15, 20261+1
Oct 14, 20260No prior observation