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Contract OI history

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Dec 18, 2026 EXPIRATION

EFC $12.50 Put

EFC261218P00012500

Latest saved OI1,263Oct 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 $12.50 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. 1,2636310 2026-10-02: 1,157 OI2026-10-05: 1,159 OI2026-10-06: 1,247 OI2026-10-07: 1,247 OI2026-10-08: 1,246 OI2026-10-09: 1,256 OI2026-10-13: 1,263 OI2026-10-14: 1,263 OI2026-10-16: 1,263 OI2026-10-20: 1,263 OI2026-10-23: 1,263 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, 2026Viewing1,2630
Oct 20, 20261,2630
Oct 16, 20261,2630
Oct 14, 20261,2630
Oct 13, 20261,263+7
Oct 09, 20261,256+10
Oct 08, 20261,246-1
Oct 07, 20261,2470
Oct 06, 20261,247+88
Oct 05, 20261,159+2
Oct 02, 20261,157No prior observation