Mark Cuban is heavily invested in these two tech companies

Mark Cuban's two biggest bets on Wall Street are tech rivals Amazon and Netflix.

The billionaire Dallas Mavericks owner and Shark Tank judge confirmed at a conference on Thursday that the online shopping giant constitutes his largest investment followed by the streaming service.

Cuban, who made his fortune as a tech entrepreneur in the '90s, has previously called Amazon "the greatest startup and the greatest company in the world."

He said in an interview with CNBC earlier this year that that he's generally optimistic about the tech industry's prospects.

"I think we're going to go through the biggest technological revolution we've ever seen in the next 10 years," he told the network.

But Cuban also touched on some criticisms of Silicon Valley in his appearance this week at the New York Times Dealbook conference this week. The two dominant players in the online advertising world—Facebook and Google—are like a "drug" to consumers, he said.

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Aside from his tech predictions, Cuban also took some time to hint at a possible 2020 presidential run. Cuban's name has been in the mix as a possible contender since his harsh criticisms of Donald Trump on the campaign trail last year.

RELATED: Here are some of Mark Cuban's most notable business quotes:

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Mark Cuban business quotes
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Mark Cuban business quotes

#1: "I still work hard to know my business. I'm continuously looking for ways to improve all my companies, and I'm always selling. Always."

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#2: "When you've got 10,000 people trying to do the same thing, why would you want to be number 10,001?"

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#3: "Because if you're prepared and you know what it takes, it's not a risk. You just have to figure out how to get there. There is always a way to get there."

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#4: "Go out there and get rich. Get so obnoxiously rich that when that tax bill comes, your first thought will be to choke on how big a check you have to write."

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#5: "​In the past, people used to tell me to shut up a bit. But what I believe is to put out your opinion and let everyone else react. If I'm wrong, I'm wrong."

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#6: "I've learned that it doesn't matter how many times you failed. You only have to be right once. I tried to sell powdered milk. I was an idiot lots of times, and I learned from them all."

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#7: "Work like there is someone working 24 hours a day to take it all away from you."

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#8: "Forget about finding your passion. Instead, focus on finding big problems."

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#9: "It's not about money or connections -- it's the willingness to outwork and outlearn everyone when it comes to your business. And if it fails, you learn from what happened and do a better job next time."

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#10: "What I've learned is that if you really want to be successful at something, you'll find that you put the time in. You won't just ask somebody if it's a good idea, you'll go figure out if it's a good idea."

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He claims he would run as a Republican before he would a Democrat but most likely an Independent.

"I'm obviously considering it," Cuban said. "The benefit of being an independent is you go right to the golden ticket time, if I get enough support in the polls then I get to participate in the debates."

But he also relishes the idea of taking on Trump in a hypothetical Republican primary. 

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