Ethereum is ETH - Currently worth approximately $130
Ethereum Classic is ETC - Currently worth approximately $8
I know it's confusing, you hear the word coin all the time. Then you hear about Ethereum ETH. Next thing you know, you've been day trading for hours and accidently deposit ETH into an ETC wallet because you've somehow created this new word Ethercoin.
If you ETC when you're supposed to ETH, you're gonna have a bad time!