Backtesting your strategy

A backtest runs your strategy over historical candles and reports how it would have behaved. Spera has two flavors.

Quick backtest

The fast pass you run while building, from the Builder's bottom panel. It executes over the candles currently loaded on the chart and returns an equity curve plus metrics in seconds — tight enough to iterate on.

Deep backtest

When you want to evaluate across a long history, run a deep backtest over an explicit date range. It runs as a job (so a long window doesn't block the UI) and reports progress as it goes. Use it to confirm an idea holds across different market regimes, not just the slice on your chart.

Same engine, honest results

Both flavors run the same execution engine that powers paper trading — the one that computes your strategy candle-by-candle. A backtest result and a paper run on the same data agree exactly. That's the point: the number you iterate on is the number you'll get.

The account behind the run

Backtest settings in the Builder's bottom panel set the account a run trades in: starting balance, fees and slippage, margin, sizing, and an optional risk policy.

• Leverage is judged like a Binance futures account. A leveraged position can be liquidated, and futures positions pay or receive funding at every settlement they hold through. Neither is optional. See margin, liquidation, and funding.
• A risk policy adds rails you choose: exposure caps, drawdown stops, a daily loss limit, and more. See risk policy.
• Several strategies can share one account. A portfolio backtests them together as one book.

Next: reading your results.