OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

PRTA $10.00 Call

PRTA270115C00010000

Latest saved OI117Oct 23, 2026
Last change+14vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PRTA $10.00 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. 117580 2026-10-08: 98 OI2026-10-09: 98 OI2026-10-13: 101 OI2026-10-14: 103 OI2026-10-16: 103 OI2026-10-20: 103 OI2026-10-23: 117 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, 2026Viewing117+14
Oct 20, 20261030
Oct 16, 20261030
Oct 14, 2026103+2
Oct 13, 2026101+3
Oct 09, 2026980
Oct 08, 202698No prior observation