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Contract OI history

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Jan 15, 2027 EXPIRATION

ZTO $20.00 Put

ZTO270115P00020000

Latest saved OI329Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ZTO $20.00 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. 3291640 2026-10-02: 295 OI2026-10-05: 295 OI2026-10-06: 295 OI2026-10-07: 295 OI2026-10-08: 295 OI2026-10-09: 295 OI2026-10-13: 295 OI2026-10-14: 295 OI2026-10-16: 329 OI2026-10-20: 329 OI2026-10-23: 329 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, 2026Viewing3290
Oct 20, 20263290
Oct 16, 2026329+34
Oct 14, 20262950
Oct 13, 20262950
Oct 09, 20262950
Oct 08, 20262950
Oct 07, 20262950
Oct 06, 20262950
Oct 05, 20262950
Oct 02, 2026295No prior observation