OITracker Cboe delayed data

Contract OI history

Back to CSTM

Jan 15, 2027 EXPIRATION

CSTM $25.00 Put

CSTM270115P00025000

Latest saved OI2,065Oct 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 $25.00 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. 2,0681,0340 2026-10-02: 2,068 OI2026-10-05: 2,066 OI2026-10-06: 2,066 OI2026-10-07: 2,066 OI2026-10-08: 2,066 OI2026-10-13: 2,064 OI2026-10-14: 2,065 OI2026-10-16: 2,065 OI2026-10-20: 2,065 OI2026-10-23: 2,065 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, 2026Viewing2,0650
Oct 20, 20262,0650
Oct 16, 20262,0650
Oct 14, 20262,065+1
Oct 13, 20262,064-2
Oct 08, 20262,0660
Oct 07, 20262,0660
Oct 06, 20262,0660
Oct 05, 20262,066-2
Oct 02, 20262,068No prior observation