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Contract OI history

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Dec 15, 2028 EXPIRATION

ENPH $20.00 Put

ENPH281215P00020000

Latest saved OI496Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ENPH $20.00 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. 5002500 2026-10-09: 486 OI2026-10-13: 486 OI2026-10-14: 486 OI2026-10-15: 500 OI2026-10-16: 499 OI2026-10-21: 494 OI2026-10-23: 496 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, 2026Viewing496+2
Oct 21, 2026494-5
Oct 16, 2026499-1
Oct 15, 2026500+14
Oct 14, 20264860
Oct 13, 20264860
Oct 09, 2026486No prior observation