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Contract OI history

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Dec 18, 2026 EXPIRATION

STAA $12.50 Put

STAA261218P00012500

Latest saved OI709Oct 23, 2026
Last change-10vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
STAA $12.50 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 7193590 2026-10-08: 719 OI2026-10-09: 719 OI2026-10-13: 719 OI2026-10-14: 719 OI2026-10-15: 719 OI2026-10-16: 719 OI2026-10-20: 719 OI2026-10-23: 709 OI Oct 08, 2026Oct 23, 2026

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

STAA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing709-10
Oct 20, 20267190
Oct 16, 20267190
Oct 15, 20267190
Oct 14, 20267190
Oct 13, 20267190
Oct 09, 20267190
Oct 08, 2026719No prior observation