OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

STEM $7.50 Put

STEM261218P00007500

Latest saved OI166Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STEM $7.50 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. 166830 2026-10-02: 165 OI2026-10-05: 165 OI2026-10-06: 165 OI2026-10-07: 165 OI2026-10-08: 165 OI2026-10-09: 165 OI2026-10-13: 165 OI2026-10-14: 165 OI2026-10-16: 165 OI2026-10-20: 166 OI2026-10-23: 166 OI Oct 02, 2026Oct 23, 2026

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

STEM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261660
Oct 20, 2026Viewing166+1
Oct 16, 20261650
Oct 14, 20261650
Oct 13, 20261650
Oct 09, 20261650
Oct 08, 20261650
Oct 07, 20261650
Oct 06, 20261650
Oct 05, 20261650
Oct 02, 2026165No prior observation