Indeed, in the same way that all commodities can not be traded profitably, not all crypto-currencies are good investments. Coin Ranking guides you in these matters.
The full return on your capital lies in the investment choices you make. It is therefore imperative to separate the wheat from the chaff. You must train yourself.
Do not hesitate to do some research on the cryptocurrency you are interested in. It is thus necessary to compare the evolution and the reactions of each cryptocurrency with the increases and decreases in the price of Bitcoin.
Visit the development team’s web page to get a sense of how serious it is. The impressions of the community in this regard are also to be taken into account. There are also sites like Reddit or Steemit on which you have access to information and analysis of different blockchain projects from prominent members of the crypto community. From Coin Ranking you will get all the supports and suggestions regarding all these.