FTB-C000258 / Market data field

Downtick

Downtick is a trade-price classification indicating a decrease from the applicable comparison price.

Also known asdown tick

Foundation 1 linked topicPublished

Definitions

In plain terms

It labels a qualifying trade as downward under the selected tick rule.

Technical

The feed contract must define comparison trade, equal-price handling, corrections, sequence, venue consolidation, and timestamp.

Scope

It is a trade classification, not the same as a declining daily issue.

Examples

  • A Fintech Builder lesson can compute or identify Downtick only after declaring its inputs, timing, and edge-case rules.

Common misconceptions

  • It is a trade classification, not the same as a declining daily issue.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Evidence and governance

  1. Daily TAQ Client Specification New York Stock Exchange / Intercontinental Exchange · official exchange

    Supports: preferred label, short definition, technical definition

    Limits: Product-specific and licensed; it does not create universal eligibility, repair, imputation, tolerance, or aggregation rules.

Reviewed by
fintech-builder-batch-005
Last reviewed
2026-07-27
Next review
2027-07-27
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.