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Contract OI history

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Nov 20, 2026 EXPIRATION

PTLO $4.00 Put

PTLO261120P00004000

Latest saved OI2,004Oct 23, 2026
Last change+180vs 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. 2,0041,0020 2026-10-08: 1,494 OI2026-10-09: 1,473 OI2026-10-13: 1,496 OI2026-10-14: 1,509 OI2026-10-16: 1,755 OI2026-10-20: 1,824 OI2026-10-23: 2,004 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, 2026Viewing2,004+180
Oct 20, 20261,824+69
Oct 16, 20261,755+246
Oct 14, 20261,509+13
Oct 13, 20261,496+23
Oct 09, 20261,473-21
Oct 08, 20261,494No prior observation