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Contract OI history

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Nov 20, 2026 EXPIRATION

SLM $20.00 Put

SLM261120P00020000

Latest saved OI391Oct 23, 2026
Last change+103vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SLM $20.00 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. 3911950 2026-10-09: 9 OI2026-10-13: 29 OI2026-10-14: 29 OI2026-10-15: 29 OI2026-10-16: 29 OI2026-10-21: 288 OI2026-10-23: 391 OI Oct 09, 2026Oct 23, 2026

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

SLM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing391+103
Oct 21, 2026288+259
Oct 16, 2026290
Oct 15, 2026290
Oct 14, 2026290
Oct 13, 202629+20
Oct 09, 20269No prior observation