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Contract OI history

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Oct 23, 2026 EXPIRATION

ENPH $28.50 Put

ENPH261023P00028500

Latest saved OI348Oct 23, 2026
Last change-12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ENPH $28.50 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. 3601800 2026-10-09: 4 OI2026-10-13: 266 OI2026-10-14: 266 OI2026-10-15: 275 OI2026-10-16: 297 OI2026-10-21: 360 OI2026-10-23: 348 OI Oct 09, 2026Oct 23, 2026

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

ENPH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing348-12
Oct 21, 2026360+63
Oct 16, 2026297+22
Oct 15, 2026275+9
Oct 14, 20262660
Oct 13, 2026266+262
Oct 09, 20264No prior observation