Learn Trading the Risk-Free Way

Free, practical guides to practicing stock and crypto trading on real-time market data — with simulated money, real competition, and zero risk. Start with the basics or jump straight to building algorithms.

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MongoTrader is a free trading simulator where you trade with virtual currency ($MON) against real-time, exchange-grade market data across 10 asset classes. Practice strategies, compete in prize leagues, and build automated algorithms — without risking a cent. These guides explain the concepts and show you how to put them into practice.