Yea the volatility of the altcoin maybe is the key factor for trading but there are still 3 important questions we can ask for the trade.
1- Which altcoins do you prefer for your daily or short time trade generally?
2- And why do you prefer?
3- Do you have any daily income goal or you trade as much as you can with this altcoins?
1. trading good liquidity coins like ETH, XMR, STRATIS on poloniex.
2. I prefer them because their market caps are big(project is good for long term)
3. No daily goal, but I want to make 100 BTC in a year, it is my dream.