Crypto is very volatile. The volatility of an asset refers to how quickly its value can rise and fall—and when it comes to cryptocurrencies, that rate can be extremely high. Take E-Coin as an example. A few years ago, an obscure cryptocurrency called E-Coin experienced a 4,000% increase in value over a short period of time. In the span of a day, it went back to its original value. Anyone who bought E-Coin before its spike would have made an incredible profit. However, people who bought it at its peak experienced a heartbreaking loss. Examples of price spikes like this are what make volatility a double-edged sword for investors.
I know virtually every cryptocurrency is volatile, but the coin E-Coin you used as an example wasn't just affected or hit by volatility, it is more or less a pump and dump coin, and it actually did what you expect from such coins, increase sporadically and decrease twice as fast, that being said, people looking to trade or invest should be very careful about pump and dump coins, I know they are the fastest when it comes to giving ROI cause of how fast they pump, but if you're not lucky, and unfortunately, more often than not you'll not be lucky with them, you can lose basically all of your funds pretty fast. It's better you use good coins, and that must be after you've made your extensive research, choose coins that aren't shitcoins and make sure you actually believe in them.