OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MT $20.00 Put

MT280121P00020000

Latest saved OI349Oct 21, 2026
Last change0vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MT $20.00 put open interest history 9 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 3491740 2026-10-02: 349 OI2026-10-05: 349 OI2026-10-06: 349 OI2026-10-08: 349 OI2026-10-09: 349 OI2026-10-13: 349 OI2026-10-15: 349 OI2026-10-16: 349 OI2026-10-21: 349 OI Oct 02, 2026Oct 21, 2026

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

MT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing3490
Oct 16, 20263490
Oct 15, 20263490
Oct 13, 20263490
Oct 09, 20263490
Oct 08, 20263490
Oct 06, 20263490
Oct 05, 20263490
Oct 02, 2026349No prior observation