'Wolf of Wall Street' trader Jordan Belfort first thought bitcoin would 'go away forever.' He now predicts it will soar 80% to $100,000.

• Jordan Belfort is the famous '90s-era pump-and-dump inspiration behind "The Wolf of Wall Street."
• The former Wall Street trader once believed US regulators would wipe bitcoin from existence.
• He now predicts the cryptocurrency will rise to $100,000.

Jordan Belfort, the former Wall Street stockbroker whose life inspired the hit movie "The Wolf of Wall Street," once believed bitcoin would cease to exist in the financial world.

In a recent interview with Fortune magazine, Belfort said he expects to see the cryptocurrency rise 80% from current levels to $100,000. Bitcoin was last trading around $57,000 on Monday.

He said bitcoin's limited supply gives it an edge over stocks as the value of equities can be distorted by companies issuing new shares. "People are spoiled by bitcoin," he said. "Bitcoin has a fixed, finite supply. With stocks, you have an infinite number of shares that can be issued."

Belfort admitted to being a bitcoin detractor earlier and said he was wrong. "When it was hitting $19,000 in late 2017, I was on a TV show, and I told the audience that it would crash," he said. "I was right then, but I also thought bitcoin would go away forever. It was hard to sell and easy to buy, all the things that make for manipulation."

The former trader thought user accounts that held bitcoin in Switzerland and the Cayman Islands would be seized and the cryptocurrency would ultimately be regulated out of existence.

Since it has now gained more mainstream acceptance, he now believes it has plenty more room to run.

"Bitcoin now has a much bigger base of buyers than ever before," he said, adding that new investors will keep pumping its price higher.

Belfort's memoir "The Wolf of Wall Street" was published in 2017 after he served 22 months in jail for defrauding a lot of people and being sentenced to securities fraud. His activities spurred by greed and excess at the brokerage firm Stratton Oakmont between the 1980s and 90s led to him being ordered to return more than $110 million to his customers, according to CNBC. A sequel memoir "Catching the Wolf of Wall Street" was published in 2009.