OITracker Cboe delayed data

Contract OI history

Back to STM

Jan 21, 2028 EXPIRATION

STM $37.00 Put

STM280121P00037000

Latest saved OI1,964Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
STM $37.00 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. 1,9739860 2026-10-02: 1,968 OI2026-10-05: 1,968 OI2026-10-06: 1,973 OI2026-10-07: 1,962 OI2026-10-08: 1,962 OI2026-10-09: 1,962 OI2026-10-13: 1,962 OI2026-10-14: 1,962 OI2026-10-15: 1,962 OI2026-10-16: 1,962 OI2026-10-21: 1,962 OI2026-10-23: 1,964 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, 20261,964+2
Oct 21, 2026Viewing1,9620
Oct 16, 20261,9620
Oct 15, 20261,9620
Oct 14, 20261,9620
Oct 13, 20261,9620
Oct 09, 20261,9620
Oct 08, 20261,9620
Oct 07, 20261,962-11
Oct 06, 20261,973+5
Oct 05, 20261,9680
Oct 02, 20261,968No prior observation