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Contract OI history

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Nov 20, 2026 EXPIRATION

SPIR $18.00 Put

SPIR261120P00018000

Latest saved OI80Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SPIR $18.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3281640 2026-10-02: 328 OI2026-10-05: 328 OI2026-10-06: 328 OI2026-10-07: 328 OI2026-10-08: 328 OI2026-10-09: 328 OI2026-10-13: 320 OI2026-10-15: 320 OI2026-10-16: 320 OI2026-10-20: 80 OI2026-10-23: 80 OI Oct 02, 2026Oct 23, 2026

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

SPIR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing800
Oct 20, 202680-240
Oct 16, 20263200
Oct 15, 20263200
Oct 13, 2026320-8
Oct 09, 20263280
Oct 08, 20263280
Oct 07, 20263280
Oct 06, 20263280
Oct 05, 20263280
Oct 02, 2026328No prior observation