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Contract OI history

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Jan 15, 2027 EXPIRATION

PTLO $4.00 Put

PTLO270115P00004000

Latest saved OI3,908Oct 23, 2026
Last change-35vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PTLO $4.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 3,9781,9890 2026-10-08: 3,946 OI2026-10-09: 3,946 OI2026-10-13: 3,945 OI2026-10-14: 3,973 OI2026-10-16: 3,978 OI2026-10-20: 3,943 OI2026-10-23: 3,908 OI Oct 08, 2026Oct 23, 2026

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

PTLO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263,908-35
Oct 20, 2026Viewing3,943-35
Oct 16, 20263,978+5
Oct 14, 20263,973+28
Oct 13, 20263,945-1
Oct 09, 20263,9460
Oct 08, 20263,946No prior observation