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Contract OI history

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Dec 18, 2026 EXPIRATION

SITM $450.00 Put

SITM261218P00450000

Latest saved OI26Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SITM $450.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 28140 2026-10-09: 21 OI2026-10-13: 24 OI2026-10-14: 24 OI2026-10-15: 25 OI2026-10-16: 28 OI2026-10-21: 24 OI2026-10-23: 26 OI Oct 09, 2026Oct 23, 2026

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

SITM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing26+2
Oct 21, 202624-4
Oct 16, 202628+3
Oct 15, 202625+1
Oct 14, 2026240
Oct 13, 202624+3
Oct 09, 202621No prior observation