Stress-test how fees affect backtest results

Goal

Check whether net strategy performance depends on unrealistically low trading costs.

Steps

1. Save a normal exchange-fee scenario and a higher stress-fee scenario. [backtest]
2. Run freqtrade backtesting ... --fee 0.001 for each scenario without changing strategy parameters. [backtest]
3. Compare net profit, drawdown, and trade count; record each fee alongside its config. [backtest]

How to verify

Results show the net impact of fees with identical data in both scenarios.

Troubleshooting

Fees are ratios (0.001 = 0.1%) and apply on both entry and exit; avoid double-counting.