OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

M $13.00 Put

M280121P00013000

Latest saved OI234Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $13.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2541270 2026-10-02: 234 OI2026-10-05: 234 OI2026-10-06: 234 OI2026-10-07: 234 OI2026-10-08: 234 OI2026-10-09: 254 OI2026-10-13: 254 OI2026-10-14: 254 OI2026-10-15: 254 OI2026-10-16: 234 OI2026-10-21: 234 OI2026-10-23: 234 OI Oct 02, 2026Oct 23, 2026

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

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2340
Oct 21, 20262340
Oct 16, 2026234-20
Oct 15, 20262540
Oct 14, 20262540
Oct 13, 20262540
Oct 09, 2026254+20
Oct 08, 20262340
Oct 07, 20262340
Oct 06, 20262340
Oct 05, 20262340
Oct 02, 2026234No prior observation