OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SYM $40.00 Put

SYM270115P00040000

Latest saved OI775Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SYM $40.00 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. 7813900 2026-10-09: 779 OI2026-10-13: 781 OI2026-10-14: 781 OI2026-10-15: 780 OI2026-10-16: 780 OI2026-10-20: 778 OI2026-10-23: 775 OI Oct 09, 2026Oct 23, 2026

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

SYM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing775-3
Oct 20, 2026778-2
Oct 16, 20267800
Oct 15, 2026780-1
Oct 14, 20267810
Oct 13, 2026781+2
Oct 09, 2026779No prior observation