OITracker Cboe delayed data

Contract OI history

Back to CSTM

Jan 15, 2027 EXPIRATION

CSTM $23.00 Put

CSTM270115P00023000

Latest saved OI153Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CSTM $23.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 161800 2026-10-02: 161 OI2026-10-05: 132 OI2026-10-06: 132 OI2026-10-07: 132 OI2026-10-08: 132 OI2026-10-13: 132 OI2026-10-14: 103 OI2026-10-16: 103 OI2026-10-20: 153 OI2026-10-23: 153 OI Oct 02, 2026Oct 23, 2026

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

CSTM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1530
Oct 20, 2026153+50
Oct 16, 20261030
Oct 14, 2026103-29
Oct 13, 20261320
Oct 08, 20261320
Oct 07, 20261320
Oct 06, 20261320
Oct 05, 2026132-29
Oct 02, 2026161No prior observation