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Contract OI history

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Mar 19, 2027 EXPIRATION

GPRE $21.00 Put

GPRE270319P00021000

Latest saved OI29Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GPRE $21.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 29140 2026-10-08: 29 OI2026-10-09: 29 OI2026-10-13: 29 OI2026-10-14: 29 OI2026-10-16: 29 OI2026-10-20: 29 OI Oct 08, 2026Oct 20, 2026

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

GPRE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing290
Oct 16, 2026290
Oct 14, 2026290
Oct 13, 2026290
Oct 09, 2026290
Oct 08, 202629No prior observation