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Backtesting EnginePython Backtesting for Everyone
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See It In Action
python
# Live example - Try this in the app!
BACKTEST_CONFIG = {
'start_date': '20240101',
'end_date': '20240201',
'initial_capital': 10000
}
def on_bar_close(data_contexts, portfolio, state):
"""Simple momentum strategy"""
data = data_contexts['SPY']
# Buy when price crosses above 20-day average
if data.close > data.sma(20) and portfolio.position('SPY') == 0:
shares = int(portfolio.cash * 0.95 / data.close)
buy('SPY', shares)
# Sell when price drops below average
elif data.close < data.sma(20) and portfolio.position('SPY') > 0:
sell_all('SPY')Ready to Test Your Strategy?
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Your First Backtest Awaits
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Learn From Examples
SMA Crossover
Classic trend-following strategy using moving averages.
Bollinger Bands
Trade price extremes with statistical boundaries.
Momentum Trading
Ride strong trends with proper risk management.
Risk Management
Protect capital with stops and position sizing.
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