OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

OSS $7.50 Put

OSS280121P00007500

Latest saved OI44Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
OSS $7.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 44220 2026-10-08: 25 OI2026-10-09: 25 OI2026-10-13: 35 OI2026-10-14: 42 OI2026-10-16: 42 OI2026-10-20: 44 OI2026-10-23: 44 OI Oct 08, 2026Oct 23, 2026

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

OSS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026440
Oct 20, 2026Viewing44+2
Oct 16, 2026420
Oct 14, 202642+7
Oct 13, 202635+10
Oct 09, 2026250
Oct 08, 202625No prior observation