OITracker Cboe delayed data

Contract OI history

Back to OPEN

Oct 30, 2026 EXPIRATION

OPEN $2.50 Put

OPEN261030P00002500

Latest saved OI1,117Oct 23, 2026
Last change-91vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $2.50 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. 1,2086040 2026-10-09: 1,131 OI2026-10-13: 1,117 OI2026-10-14: 1,117 OI2026-10-15: 1,097 OI2026-10-16: 1,099 OI2026-10-21: 1,208 OI2026-10-23: 1,117 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,117-91
Oct 21, 20261,208+109
Oct 16, 20261,099+2
Oct 15, 20261,097-20
Oct 14, 20261,1170
Oct 13, 20261,117-14
Oct 09, 20261,131No prior observation