What’s the Difference Between NYSE and Polymarket?: Aaron Brown

Oct. 10, 2025, 9:00 AM UTC

News that the owner of the New York Stock Exchange is buying a substantial interest in crypto-betting entity Polymarket made me think of Michael Crichton’s warning in Jurassic Park.

Swapping bits of DNA from highly evolved entities separated by millions of years leads to unpredictable results (if you only saw the movie, you missed most of the argument). But if the velociraptors don’t get loose, there are some large potential benefits of the offspring of a marriage between Intercontinental Exchange Inc.’s NYSE and Polymarket for both securities trading and betting.

Polymarket is a rational system, with efficiency, security and incentives ...

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