The volume of Catex.io is real, is this exchange based in China giving you a voucher? The exchange was born only a year ago, they have a CATT token (2 billion) which currently costs very little $ 0.000482 ..... could it be an interesting investment?
Real? I don't think so yet most exchangers nowadays do have fake or been known to have the issue of fake volumes.
Tried to search out on their teams or exchange location but I cant search it up and with that alone I cant already trust them with my funds.
We have lots of exchangers as of this moment but choosing the top one will always be the wisest thing to be done rather risking up with these exchangers.
About the investment, if you do have the money to spent or to throw out then its your choice since its your money after all
but don't expect too much that it would progress up on future years to come.