I think there is an issue with how VolFix aggregate trades data (and volume related data), when it comes to crypto assets.
For example, en Binance Futures, with BTCUSDT, if you compare live exchange data and VolFix data, you can see that a lot of trades are missing.
Possible issue is that VolFix only take into account trades that are on a price precision of "1". For example, BTCUSDT price precision is "0.1" on binance, but on VolFix minimum price precision is "1". So maybe trades that do not match the exact level are not taken into account ?
You can see this behavior in T&S, DOM, Chart, .. (all volume related data is not accurate compared to live exchange data, because not all trades are taken into account in VolFix).
Here is a picture showing the different data in VolFix compared to CScalp and TigerTrade:
(Here it is using VolFix.NET, but the issue is the same with VolFix Anywhere)
If you need more informations about this, feel free to ask.
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