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Contract OI history

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Feb 19, 2027 EXPIRATION

PTLO $4.00 Call

PTLO270219C00004000

Latest saved OI374Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PTLO $4.00 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. 3761880 2026-10-08: 289 OI2026-10-09: 289 OI2026-10-13: 376 OI2026-10-14: 376 OI2026-10-16: 376 OI2026-10-20: 374 OI2026-10-23: 374 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, 20263740
Oct 20, 2026Viewing374-2
Oct 16, 20263760
Oct 14, 20263760
Oct 13, 2026376+87
Oct 09, 20262890
Oct 08, 2026289No prior observation