I'm not an expert, but if I were you, I have thousands of other safer and more profitable options than Doge.
It's all hype and those investors that are buying at the top of Dogecoin has to think of it before they're going to buy Doge. But there's no problem if they decide to buy it because it's highly volumed.
Though I don't know what the reason behind the Doge's terrible growth is, it is becoming like a slow-exploding bomb. An over-inflated ball leads to rupture, many years ago BTC is a prime example. Don't venture into Doge, choose another better coin!
The reason is because of Elon Musk and other huge name such as Mark Cuban but the main person is Elon.