Backtest math: how fees and slippage change a trading bot result
A short, plain guide to backtest fees slippage, and a tested bot that does the job with your real inputs.
Education only, not financial advice. Trading involves substantial risk of loss. Past results do not predict future results.
What you need
- The bot's sales page or claims, pasted in
- Its settings, permissions and any backtest it shows
- How much you plan to put in and on which exchange or wallet
How to do it
- Gather the inputs above in one place.
- Paste them into Vetly in ChatGPT, Claude or Grok.
- Read every step it shows. Fix any input that looks wrong and run it again.
- Never share your seed phrase or keys. Education only, not financial advice. Trading involves substantial risk of loss. Past results do not predict future results.
Questions
How do i add fees to a backtest?
It depends on your own numbers and the current rules. Vetly works it out from what you paste in and shows each step, so you can check it. Never share your seed phrase or keys. Education only, not financial advice. Trading involves substantial risk of loss. Past results do not predict future results.
How many trades does a backtest need?
It depends on your own numbers and the current rules. Vetly works it out from what you paste in and shows each step, so you can check it. Never share your seed phrase or keys. Education only, not financial advice. Trading involves substantial risk of loss. Past results do not predict future results.
What is a good max drawdown?
It depends on your own numbers and the current rules. Vetly works it out from what you paste in and shows each step, so you can check it. Never share your seed phrase or keys. Education only, not financial advice. Trading involves substantial risk of loss. Past results do not predict future results.
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