Hi Community,
I am an avid long term investor in anything except when having Sxx with the wife, that shit don`t last very long

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But on a serious note, is there an Alt Coin or Coins that can actually yield monthly returns.
There might be, for sure. Personally, I'm HODL type of person, it can be very profitable. Just take a look at the prices from the 2016, where ETH was at 9 USD, btc under 1000 USD, just to name few. And where they are now? People tend not to be patient - holding might be the key. Of course you should not put everything in one ALT coin, split it between some good projects and in a year/2/3 you will see the results (hopefully).