I understand that Coinbase creates many btc addresses per wallet. I am not sure though that if you have an overall zero balance (or $0.01 overall) all your associated btc addresses should also have a zero balance.
So, here is the actual question: I see that one of my btc addresses associated to one of my coinbase wallets (let's call the address ABC123) still has a bitcoin non zero balance. It's not a rounding issue as the balance is too large for this. Overall my coinbase balance is almost zero. Does this make sense?
When I go to https://bitref.com and check ABC123 I can see the balance.