Stock research analyst Ronnie Moas said he bought bitcoin this weekend and thinks it could reach $5,000 within a year.

"$5,000 could happen in a few months. It's only starting to gain traction right now," Moas, founder of Standpoint Research, told CNBC in a phone interview Wednesday. "It's starting to spread like wildfire right now."

He pointed out that since only 21 million bitcoin can ever exist, increasing demand for the digital currency will naturally drive its price up.

briefly tripled in value this year, hitting a record $3,025.47 on June 11, according to CoinDesk. The digital currency traded Wednesday near $2,600, still more than double its Dec. 31 price of $968.

"This is not something I could keep my hands off of," Moas said. "What would be more painful than losing [money in cryptocurrencies] is not acting."

The research analyst said he invested a few hundred U.S. dollars each in bitcoin, ethereum and another digital currency called litecoin through Coinbase.com. After he releases a 40-page report on cryptocurrencies in the next few weeks, Moas said he plans to invest more in them.

The research analyst's view on bitcoin joins the optimistic views of others on Wall Street. On Sunday, Goldman Sachs' technical analyst Sheba Jafari said in a note that bitcoin could rise as high as $3,915.