OITracker Cboe delayed data

Contract OI history

Back to STEM

Dec 18, 2026 EXPIRATION

STEM $15.00 Call

STEM261218C00015000

Latest saved OI115Oct 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 $15.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 115570 2026-10-02: 111 OI2026-10-05: 111 OI2026-10-06: 111 OI2026-10-07: 108 OI2026-10-08: 109 OI2026-10-09: 109 OI2026-10-13: 110 OI2026-10-14: 113 OI2026-10-16: 113 OI2026-10-20: 115 OI2026-10-23: 115 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, 20261150
Oct 20, 2026Viewing115+2
Oct 16, 20261130
Oct 14, 2026113+3
Oct 13, 2026110+1
Oct 09, 20261090
Oct 08, 2026109+1
Oct 07, 2026108-3
Oct 06, 20261110
Oct 05, 20261110
Oct 02, 2026111No prior observation