OITracker Cboe delayed data

Contract OI history

Back to COST

Jan 15, 2027 EXPIRATION

COST $925.00 Put

COST270115P00925000

Latest saved OI214Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $925.00 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. 2141070 2026-10-09: 190 OI2026-10-13: 195 OI2026-10-14: 195 OI2026-10-15: 193 OI2026-10-16: 202 OI2026-10-21: 214 OI2026-10-23: 214 OI Oct 09, 2026Oct 23, 2026

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

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2140
Oct 21, 2026214+12
Oct 16, 2026202+9
Oct 15, 2026193-2
Oct 14, 20261950
Oct 13, 2026195+5
Oct 09, 2026190No prior observation