OITracker Cboe delayed data

Contract OI history

Back to APA

Jan 21, 2028 EXPIRATION

APA $40.00 Put

APA280121P00040000

Latest saved OI215Oct 23, 2026
Last change-44vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
APA $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. 2591290 2026-10-09: 114 OI2026-10-13: 143 OI2026-10-14: 144 OI2026-10-15: 240 OI2026-10-16: 240 OI2026-10-21: 259 OI2026-10-23: 215 OI Oct 09, 2026Oct 23, 2026

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

APA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing215-44
Oct 21, 2026259+19
Oct 16, 20262400
Oct 15, 2026240+96
Oct 14, 2026144+1
Oct 13, 2026143+29
Oct 09, 2026114No prior observation