Day trading or holding has the same risk and can both get profit, for day trading it requires more knowledge and deeper skills, because it regulates financial patterns in trading. while for holding only need to hold and save until the price is high. so it's a choice based on one's ability
hold also need deep research to find legit project ,if we dont do this maybe shitproject could be in our hand. in daily trades, our technical analisys will take important roles for the result . with high volatility in market and various altcoin that provided in exchanges we can take opportunity from it, just take less on 5 coins and focus on it will give us profits.