This question was asked many time, I am still not sure but want to give my own opinion on it
the Q was: I purchased some Ark at the rate of $10 per coin, still hodeling, should I sell now?
Ans: The first thing is that why you want to sell this time, this time its price is nothing, only 19 cents, will you get anything back? ofcourse none, but I am sure that in the next year, Ark will hit higher than before, not $10, but maybe around $100, or more because it has the less quantity than ethereum, the best thing is that it is listed on binance, and binance traders are good, they also don't want to give the hodelers loss, nor any trader want that you should bear loss because they understand that how much it could be harmful to you, as when sometime they bear it, they feel what happens, and in if it could be a good practice then nobody buy or hodel any altcoin, so don't worry, Ark has less supply then Ethereum, even the NEO had been trading around $190+ in 2018, so if next year, bitcoin cross the $20K trend line, then Ark will also hit higher. If I am wrong, then you can read the comments of other traders below, but looking at the current chart, no one can judge that will it be pumped or not, and nor this is a pump and dump coin, but I am sure and can expect something good has to happen.
you are in the same situation of people who bought bitcoin at the rate of 20.000 usd.
i know the loss it's extremely higher right now talking about Ark, but the question, and maybe the answer still the same: what to do.
i think this could be answered easily.
If you invested what you can lose, continue to HODL waiting for a market recovery, else, cash the loss and go on.