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Contract OI history

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Jan 21, 2028 EXPIRATION

ENPH $55.00 Put

ENPH280121P00055000

Latest saved OI1,638Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ENPH $55.00 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. 1,6388190 2026-10-09: 1,593 OI2026-10-13: 1,593 OI2026-10-14: 1,593 OI2026-10-15: 1,593 OI2026-10-16: 1,593 OI2026-10-21: 1,638 OI2026-10-23: 1,638 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, 2026Viewing1,6380
Oct 21, 20261,638+45
Oct 16, 20261,5930
Oct 15, 20261,5930
Oct 14, 20261,5930
Oct 13, 20261,5930
Oct 09, 20261,593No prior observation