™If after-hours trading appears in a quote, filing or account screen, read it together with the instrument, timeframe and calculation method.
Trading
After-hours trading
Trading that occurs after the regular exchange session, often with lower liquidity and wider spreads.
Plain-English context
Why it matters
This term is part of the language used to describe ownership, pricing, transactions and investment outcomes.
Assuming After-hours trading 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.