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Contract OI history

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Jan 15, 2027 EXPIRATION

ZTO $19.00 Put

ZTO270115P00019000

Latest saved OI374Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTO $19.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4402200 2026-10-02: 440 OI2026-10-05: 440 OI2026-10-06: 440 OI2026-10-07: 440 OI2026-10-08: 440 OI2026-10-09: 440 OI2026-10-13: 369 OI2026-10-14: 369 OI2026-10-16: 369 OI2026-10-20: 369 OI2026-10-23: 374 OI Oct 02, 2026Oct 23, 2026

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

ZTO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing374+5
Oct 20, 20263690
Oct 16, 20263690
Oct 14, 20263690
Oct 13, 2026369-71
Oct 09, 20264400
Oct 08, 20264400
Oct 07, 20264400
Oct 06, 20264400
Oct 05, 20264400
Oct 02, 2026440No prior observation