OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

STM $30.00 Call

STM270115C00030000

Latest saved OI1,629Oct 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 $30.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,6298140 2026-10-02: 1,596 OI2026-10-05: 1,596 OI2026-10-06: 1,595 OI2026-10-07: 1,595 OI2026-10-08: 1,595 OI2026-10-09: 1,594 OI2026-10-13: 1,595 OI2026-10-14: 1,595 OI2026-10-15: 1,599 OI2026-10-16: 1,629 OI2026-10-21: 1,629 OI2026-10-23: 1,629 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, 2026Viewing1,6290
Oct 21, 20261,6290
Oct 16, 20261,629+30
Oct 15, 20261,599+4
Oct 14, 20261,5950
Oct 13, 20261,595+1
Oct 09, 20261,594-1
Oct 08, 20261,5950
Oct 07, 20261,5950
Oct 06, 20261,595-1
Oct 05, 20261,5960
Oct 02, 20261,596No prior observation