What is MetaTrader (MT4/MT5)?
MetaTrader 4 (MT4) and MetaTrader 5 (MT5) are trading platforms developed by MetaQuotes. They've dominated retail forex trading for over a decade. MT4 is older but still widely used for forex; MT5 supports more asset classes including futures and stocks. As of 2026, MetaQuotes has tightened restrictions on prop firm usage, contributing to the platform's market share decline from 48% to 24%. Many modern prop firms now use alternative platforms like TradeLocker, cTrader, DXtrade, and Match-Trader.
Key takeaways
MetaTrader (MT4/MT5) vs. TradeLocker
Two terms that frequently get conflated. Here's how they actually differ.