OITracker Cboe delayed data

Contract OI history

Back to SYM

Jan 15, 2027 EXPIRATION

SYM $42.50 Put

SYM270115P00042500

Latest saved OI258Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SYM $42.50 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. 2641320 2026-10-09: 264 OI2026-10-13: 263 OI2026-10-14: 263 OI2026-10-15: 260 OI2026-10-16: 260 OI2026-10-20: 260 OI2026-10-23: 258 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, 2026Viewing258-2
Oct 20, 20262600
Oct 16, 20262600
Oct 15, 2026260-3
Oct 14, 20262630
Oct 13, 2026263-1
Oct 09, 2026264No prior observation