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Contract OI history

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Nov 20, 2026 EXPIRATION

STX $550.00 Put

STX261120P00550000

Latest saved OI256Oct 23, 2026
Last change+37vs 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. 2561280 2026-10-09: 197 OI2026-10-13: 197 OI2026-10-14: 197 OI2026-10-15: 200 OI2026-10-16: 200 OI2026-10-21: 219 OI2026-10-23: 256 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, 2026Viewing256+37
Oct 21, 2026219+19
Oct 16, 20262000
Oct 15, 2026200+3
Oct 14, 20261970
Oct 13, 20261970
Oct 09, 2026197No prior observation