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Contract OI history

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Oct 30, 2026 EXPIRATION

SIRI $27.50 Put

SIRI261030P00027500

Latest saved OI129Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SIRI $27.50 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. 129640 2026-10-09: 0 OI2026-10-13: 118 OI2026-10-14: 118 OI2026-10-15: 118 OI2026-10-16: 118 OI2026-10-21: 129 OI2026-10-23: 129 OI Oct 09, 2026Oct 23, 2026

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

SIRI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261290
Oct 21, 2026Viewing129+11
Oct 16, 20261180
Oct 15, 20261180
Oct 14, 20261180
Oct 13, 2026118+118
Oct 09, 20260No prior observation