OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

STM $70.00 Put

STM280121P00070000

Latest saved OI1,995Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $70.00 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. 1,9989990 2026-10-02: 1,998 OI2026-10-05: 1,995 OI2026-10-06: 1,995 OI2026-10-07: 1,995 OI2026-10-08: 1,995 OI2026-10-09: 1,995 OI2026-10-13: 1,995 OI2026-10-14: 1,995 OI2026-10-15: 1,995 OI2026-10-16: 1,995 OI2026-10-21: 1,995 OI2026-10-23: 1,995 OI Oct 02, 2026Oct 23, 2026

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

STM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,9950
Oct 21, 20261,9950
Oct 16, 20261,9950
Oct 15, 20261,9950
Oct 14, 20261,9950
Oct 13, 20261,9950
Oct 09, 20261,9950
Oct 08, 20261,9950
Oct 07, 20261,9950
Oct 06, 20261,9950
Oct 05, 20261,995-3
Oct 02, 20261,998No prior observation