Definitions
In plain terms
Up Volume totals the trading volume assigned to securities classified as advancing, so larger-volume securities contribute more than smaller-volume securities.
Technical
Up Volume is a non-negative market-data field in a stable volume unit, venue scope, and adjustment basis, allocated to the advancing side of a reconciled daily volume partition.
Scope
This concept describes allocated reported volume, not an equal-vote issue count and not buyer-initiated trade classification.
Examples
- If advancing issues account for 8.2 million reported shares, Up Volume is 8.2 million shares.
Common misconceptions
- Up Volume is not the number of advancing issues.
Concept relationships
Prerequisites
Related
Feeds into
Where this concept is used
Evidence and governance
- Daily Market Summary Data Fields and Definitions Nasdaq, Inc. · official exchange
Supports: preferred label, short definition, units
Limits: Does not define the pilot's exhaustive partition, causal cutoff, revision lineage, EMA policy, or normalized breadth formula.
- A Subtle Message in the Volume Summation Index McClellan Financial Publications · first party technical publication
Supports: preferred label, technical definition, units, variant distinction
Limits: The article's market interpretation is excluded as evidence of forecasting, causation, thresholds, or profitable trading behavior.
- Reviewed by
- fintech-builder-owner-approved
- Last reviewed
- 2026-07-26
- Next review
- 2027-07-26
- Record status
- published