Apart from Bitcoin, if only the best ALT coins are mentioned, the name of Ethereum will probably come up first. Ethereum is the second most popular digital currency after Bitcoin. The price of Ethereum is comparatively much lower than that of Bitcoin, but the market of Ethereum closely follows the market of Bitcoin. In that case, investing in Bitcoin will be as safe as investing in Ethereum. Unlike Bitcoin, Ethereum does not have much volatility in the market i.e. its price fluctuates naturally. Since there is not much volatility in its market, investors can stay tension free by investing here. On the other hand, since the market is highly dependent on the Bitcoin market, if the Bitcoin market goes to a good stage, the Ethereum market will also go to a good stage, so it can be said that Ethereum is one of the best currencies for investment at present.