cdc insists on it being spread, but their exchange volume is large enough that this is just not true.
today, bought btc on local exchange and on cdc app, got 1.5% less on the app.
sold on local exchange, and on app did a card top up.
* local exchange round trip cost 1.1%. (basically sum of fees plus a bit)
* cdc round trip cost 3% ('0 fees only spread')
I litterally don't care that there are fees, I just want it to be transparent what they are, and when they change.