OITracker Cboe delayed data

Contract OI history

Back to MAR

Jan 15, 2027 EXPIRATION

MAR $330.00 Put

MAR270115P00330000

Latest saved OI306Oct 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
MAR $330.00 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. 3091540 2026-10-09: 301 OI2026-10-13: 302 OI2026-10-14: 300 OI2026-10-15: 299 OI2026-10-16: 299 OI2026-10-21: 309 OI2026-10-23: 306 OI Oct 09, 2026Oct 23, 2026

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

MAR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing306-3
Oct 21, 2026309+10
Oct 16, 20262990
Oct 15, 2026299-1
Oct 14, 2026300-2
Oct 13, 2026302+1
Oct 09, 2026301No prior observation