OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

PRTA $15.00 Call

PRTA270115C00015000

Latest saved OI1,277Oct 23, 2026
Last change-60vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PRTA $15.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1,3606800 2026-10-08: 1,360 OI2026-10-09: 1,360 OI2026-10-13: 1,360 OI2026-10-14: 1,360 OI2026-10-16: 1,360 OI2026-10-20: 1,337 OI2026-10-23: 1,277 OI Oct 08, 2026Oct 23, 2026

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

PRTA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,277-60
Oct 20, 2026Viewing1,337-23
Oct 16, 20261,3600
Oct 14, 20261,3600
Oct 13, 20261,3600
Oct 09, 20261,3600
Oct 08, 20261,360No prior observation