In the past 90 days, only 9 of the top 100 altcoins outperformed $ETH , among which is the one most criticized, $UNI . Many small-cap coins have surged significantly, but they have also dropped sharply; today they rise, and tomorrow they fall back. Those that can truly withstand the test of time are still the mainstream coins. Altcoins tend to be more volatile, so focus on major coins and keep costs low to prepare for the next wave of the market.