Practice reading charts without risking real money. Candle Arena has two halves. Practice: a real historical chart stops at one moment, with the stock's name hidden. Make one plan (buy, sell or no trade, with a stop and a target), then see what really happened. Backtesting: replay 500 US stocks candle by candle, trade as it plays, and read your win rate, profit factor and deepest drop. Practice money only: no broker, no signals, no advice. Free to start.