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But then, you might win in BTC but loose in total FIAT value. Which means that overall risk is higher than expected, creating a big vias. It's something i can't stop thinking about and yet haven't found and answer for propper performance tracking.

Maybe you could try some App like Coinmarketcap or Blockfolio to overview your portfolio. You can track the performance of your portfolio in usd/eur/ & bitcoin. Maybe this will help you?

I am using cointracking.info.
It give's you the possibility to track many Exchanges vie API and you get Statistiks, Trade Fees and even your Tax report.

Maybe you'll have a look.

Coin Marketplace

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