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Oct 23, 2026 EXPIRATION

IBM $187.50 Put

IBM261023P00187500

Latest saved OI172Oct 23, 2026
Last change+64vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
IBM $187.50 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 172860 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 36 OI2026-10-14: 36 OI2026-10-15: 37 OI2026-10-16: 36 OI2026-10-21: 108 OI2026-10-23: 172 OI Oct 08, 2026Oct 23, 2026

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

IBM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing172+64
Oct 21, 2026108+72
Oct 16, 202636-1
Oct 15, 202637+1
Oct 14, 2026360
Oct 13, 202636+36
Oct 09, 202600
Oct 08, 20260No prior observation