Dogecoin (DOGE)
DOGE became one of the best-known altcoins this year, thanks, at least in part, to Elon Musk.
The eccentric Tesla CEO has endlessly popularised the coin, leading to peaks and sometimes troughs on several occasions.
Investors could buy one for $0.0052 (£0.0038) in January and sell them at $0.68 (£0.50) in July.
The coin is now less valuable, on the market for $0.2132 (£0.16), 3,867 percent more than the beginning of 2021.