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Contract OI history

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Nov 20, 2026 EXPIRATION

SFM $55.00 Put

SFM261120P00055000

Latest saved OI1,461Oct 23, 2026
Last change+240vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SFM $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. 1,4617300 2026-10-09: 541 OI2026-10-13: 783 OI2026-10-14: 783 OI2026-10-15: 804 OI2026-10-16: 821 OI2026-10-21: 1,221 OI2026-10-23: 1,461 OI Oct 09, 2026Oct 23, 2026

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

SFM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,461+240
Oct 21, 20261,221+400
Oct 16, 2026821+17
Oct 15, 2026804+21
Oct 14, 20267830
Oct 13, 2026783+242
Oct 09, 2026541No prior observation