For example, you have some altcoin (in my case it's Metaverse ETP) and you expect it to grow. But in a weak market, this altcoin behaves like bull and you have the opportunity now to sell it and buy an asset that looks weak in the market (for example Qash, Tierion, Nem, Odyssey or Republic Protocol) in order to get the greatest possible profit. Or leave a strong asset and wait for its further growth. What do you think about this?
This can depend on your trading strategy. But overall, yes, you should try to have a diverse portofolio in order to increase your success chances.