™If maintenance margin appears in a quote, filing or account screen, read it together with the instrument, timeframe and calculation method.
Trading
Maintenance margin
The minimum equity a margin account must maintain under applicable rules and broker requirements.
Plain-English context
Why it matters
This term is part of the language used to describe ownership, pricing, transactions and investment outcomes.
Assuming Maintenance margin has one universal interpretation without checking the source, rules, timeframe or methodology.
Use current definitions. Product terms, tax treatment and market rules can change. Confirm important details with official disclosures, regulators and regulated providers.