What Is Backtesting Software?
Backtesting software lets traders apply strategy rules to historical market data. The goal is to understand how a strategy would have behaved in past conditions before risking real capital.
A backtest is not a prediction. It is a structured way to evaluate assumptions, discover weaknesses, and compare strategy variations.
Why Backtesting Matters
Without backtesting, traders often rely on memory, screenshots, or intuition. That can lead to overconfidence. A clear backtest shows how often the strategy traded, how large the losses were, and whether performance depended on a small number of unusual trades.
Backtesting helps turn trading from guesswork into a process.
Metrics Traders Should Review
Important backtesting metrics include net return, maximum drawdown, win rate, average win, average loss, profit factor, Sharpe ratio, number of trades, and exposure time.
No single metric is enough. A strategy with high returns but extreme drawdown may be difficult or unrealistic to trade.
Common Backtesting Mistakes
Traders should watch for overfitting, survivorship bias, look-ahead bias, unrealistic fills, missing fees, ignored slippage, and insufficient sample size.
A clean-looking backtest can still fail if the assumptions are unrealistic.
How Horizon Fits
Horizon Trade is being built to help traders move from plain-English ideas to backtestable rules. That makes backtesting more accessible for traders who do not want to code every strategy manually.
The purpose is to test before risking capital.
Frequently Asked Questions
Does backtesting guarantee future results?
No. Backtesting uses historical data and cannot guarantee future performance.
What is maximum drawdown?
Maximum drawdown is the largest peak-to-trough decline shown during a backtest.
Should fees and slippage be included?
Yes. Fees, spreads, slippage, and liquidity can materially change real-world results.
Build and Backtest Trading Strategies in Plain English
Horizon is being built for traders who want to move from idea to structured strategy faster, with backtesting and risk controls included in the workflow.
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