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Contract OI history

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Dec 18, 2026 EXPIRATION

EFC $10.00 Put

EFC261218P00010000

Latest saved OI2,064Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EFC $10.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,0641,0320 2026-10-02: 2,064 OI2026-10-05: 2,064 OI2026-10-06: 2,064 OI2026-10-07: 2,064 OI2026-10-08: 2,064 OI2026-10-09: 2,064 OI2026-10-13: 2,064 OI2026-10-14: 2,064 OI2026-10-16: 2,064 OI2026-10-20: 2,064 OI2026-10-23: 2,064 OI Oct 02, 2026Oct 23, 2026

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

EFC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,0640
Oct 20, 20262,0640
Oct 16, 20262,0640
Oct 14, 20262,0640
Oct 13, 20262,0640
Oct 09, 20262,0640
Oct 08, 20262,0640
Oct 07, 20262,0640
Oct 06, 20262,0640
Oct 05, 20262,0640
Oct 02, 20262,064No prior observation