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Contract OI history

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Dec 18, 2026 EXPIRATION

SFD $20.00 Put

SFD261218P00020000

Latest saved OI175Oct 23, 2026
Last change+4vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SFD $20.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 175870 2026-10-09: 169 OI2026-10-13: 169 OI2026-10-14: 169 OI2026-10-15: 171 OI2026-10-20: 171 OI2026-10-23: 175 OI Oct 09, 2026Oct 23, 2026

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

SFD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing175+4
Oct 20, 20261710
Oct 15, 2026171+2
Oct 14, 20261690
Oct 13, 20261690
Oct 09, 2026169No prior observation