Holding is still the most reliable means of investment and it is less risky unlike short term trade, although short term trade could really be more profitable especially when you are practicing bot, I mean long term investment and short term trading.
I don't see why people constantly force themselves to choose one option over the other, while you can easily do both long term hodling and short term trading at the same time. It requires zero extra effort.
I am not trading that much, but I allocated 10% of my total stash to short term speculation and the other 90% stays in my cold wallets for many more years. 10% is what I consider to be a pretty safe allocation to speculate with.
I know some people who use like 50% of their total holdings to speculate with, but that's just crazy--the greed here can and will likely do more harm than good during a losing streak.