OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

STX $550.00 Put

STX270115P00550000

Latest saved OI570Oct 23, 2026
Last change+6vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
STX $550.00 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. 5702850 2026-10-09: 113 OI2026-10-13: 341 OI2026-10-14: 341 OI2026-10-15: 345 OI2026-10-16: 553 OI2026-10-21: 564 OI2026-10-23: 570 OI Oct 09, 2026Oct 23, 2026

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

STX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing570+6
Oct 21, 2026564+11
Oct 16, 2026553+208
Oct 15, 2026345+4
Oct 14, 20263410
Oct 13, 2026341+228
Oct 09, 2026113No prior observation