OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

MAIN $44.70 Put

MAIN270319P00044700

Latest saved OI224Oct 23, 2026
Last change+8vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MAIN $44.70 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2241120 2026-10-02: 185 OI2026-10-05: 185 OI2026-10-06: 185 OI2026-10-07: 185 OI2026-10-08: 185 OI2026-10-13: 204 OI2026-10-14: 204 OI2026-10-15: 204 OI2026-10-16: 204 OI2026-10-21: 216 OI2026-10-23: 224 OI Oct 02, 2026Oct 23, 2026

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

MAIN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing224+8
Oct 21, 2026216+12
Oct 16, 20262040
Oct 15, 20262040
Oct 14, 20262040
Oct 13, 2026204+19
Oct 08, 20261850
Oct 07, 20261850
Oct 06, 20261850
Oct 05, 20261850
Oct 02, 2026185No prior observation