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Contract OI history

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Jan 21, 2028 EXPIRATION

ENPH $20.00 Put

ENPH280121P00020000

Latest saved OI495Oct 23, 2026
Last change-3vs 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. 5022510 2026-10-09: 491 OI2026-10-13: 496 OI2026-10-14: 496 OI2026-10-15: 502 OI2026-10-16: 498 OI2026-10-21: 498 OI2026-10-23: 495 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, 2026Viewing495-3
Oct 21, 20264980
Oct 16, 2026498-4
Oct 15, 2026502+6
Oct 14, 20264960
Oct 13, 2026496+5
Oct 09, 2026491No prior observation