Joel Holsinger just quit his day job to bet on the words that famous people, like White House press secretary Karoline Leavitt, might say in public. "I thought there was a very high likelihood she would bring up 'Thanksgiving' in relation to the shutdown," he said.

From his computer, the 26-year-old makes about $3,000 a week trading on the prediction market Kalshi.

"She did not say Thanksgiving, so we were out $700 yesterday," Holsinger said.

That hurts, right? "Surprisingly for me, doesn't hurt really much," Holsinger replied. "I have had times where I've lost, for example, like, $6,000 on a bad trade, but also the inverse of that; I've made $11,000 on a trade, and so, you know, it's just ups-and-downs."

Joel Holsinger joins others trying to predict outcomes on the prediction mark

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