MT4s

MT4s refers to the MetaTrader 4 trading platforms, a family of client terminals used by individual traders and brokers for forex and CFD trading. The plural form is often used to describe multiple installations, accounts, or instances of MT4 across devices or environments. MT4 is one of the most widely deployed trading platforms in retail forex.

MT4 was released by MetaQuotes Software in 2005 and quickly gained prominence for its user-friendly interface, charting capabilities, and support for automated trading. Over its long lifespan, MT4 established a large ecosystem of custom indicators, scripts, and expert advisors (EAs) built with the MQL4 programming language. In parallel, the platform has remained compatible with most brokers and continues to be offered alongside newer platforms such as MetaTrader 5.

Key features of MT4 include real-time price quotes, multiple chart types and timeframes, numerous technical indicators, and drawing tools. It supports automated trading through EAs, backtesting and optimization with historical data, and a flexible order management system. Mobile and web-based versions extend access beyond desktop installations, enabling trading and monitoring on the go.

Architecture-wise, MT4 operates as a client terminal that connects to a broker’s MT4 server to receive data and execute orders. Users can run multiple MT4 terminals on a single device or across several devices, each linked to different accounts. The platform uses MQL4 for developing indicators, EAs, and scripts, fostering a mature ecosystem of third-party tools.

Today MT4 remains popular in many markets, though MetaQuotes directs development toward MT5. While MT5 offers broader asset coverage and newer features, MT4 continues to be supported by numerous brokers and traders who rely on its stability and extensive community resources.