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Contract OI history

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Dec 18, 2026 EXPIRATION

STX $350.00 Put

STX261218P00350000

Latest saved OI387Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
STX $350.00 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. 3871930 2026-10-09: 384 OI2026-10-13: 384 OI2026-10-14: 384 OI2026-10-15: 384 OI2026-10-16: 384 OI2026-10-21: 384 OI2026-10-23: 387 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, 2026Viewing387+3
Oct 21, 20263840
Oct 16, 20263840
Oct 15, 20263840
Oct 14, 20263840
Oct 13, 20263840
Oct 09, 2026384No prior observation