With losses extending on Tuesday, Contessoto's portfolio, which contains only dogecoin, was hit. His holdings are down over $167,000 on Tuesday alone, he tells CNBC Make It, and his portfolio was worth $831,538.88 as of Tuesday at 4:40 p.m. EST, he says.
"Up until yesterday, I had been a millionaire," Contessoto, 33, says. "If bitcoin and ethereum weren't also [hit], I'd be worried."
Four months ago, when he bought in, dogecoin was priced at about 4.5 cents. On May 8, the meme-inspired cryptocurrency, which was created as a joke in 2013 based on the "Doge" meme of a shiba inu dog, hit an all-time high of about 73 cents, and the value of Contessoto's holdings surpassed $2 million.
This volatility, however, is in part why experts warn that cryptocurrency is a risky, speculative investment. Some warn to be especially cautious when investing in dogecoin, since it lacks the scarcity and technological development that bitcoin has, for example.
Still, Contessoto remains bullish on dogecoin, even though he isn't currently a "dogecoin millionaire" on paper. "When I went into this dogecoin investment, I planned on being in it for at least a year," he says. "I put in my life savings because I knew I would eventually become a millionaire."
Now, he plans to hold the currency for much longer than a year. "Whatever happens in the short-term doesn't matter to me because I'm looking to 'hodl' dogecoin for years to come. I'm truly not worried at the end of the day."
Contessoto is sticking to his original plan: He will sell 10% of his dogecoin holdings once his portfolio reaches a $10 million value, but will leave the rest invested, he says.
"People get caught up in the short-term and don't have the patience to see the investment all the way through," he says of his decision to hold.
While Contessoto isn't worried, experts recommend exercising caution with dogecoin and warn to only invest what you can afford to lose.
But for Contessoto, "volatility comes with the territory and if you can't stomach the fluctuations, then maybe you're not cut out for crypto."