Fat Santa

About Fat Santa

“I initially didn’t believe I had won, so I called a family member to confirm it,” the winner said. “Even after claiming the prize, I’m still processing the news and experiencing the full range of emotions that come with winning a billion-dollar jackpot—from disbelief and shock to overwhelming elation.”

The winning numbers were 4, 26, 66, 67, 69, and red Powerball 9.

Lottery officials said the Powerball winner elected for the one-time cash option instead of the annuity paid out over 29 years. The $450.5 million lump sum payout was reduced to about $261.5 million after federal and state taxes.

What is Fat Santa?

Beginning with the US presidential elections in November 2024, when prediction markets catapulted into mainstream culture, their rise has been undeniable. Kalshi and Polymarket have seen their valuations balloon to $40 billion and $21 billion, respectively, and the majority of the top US bookmakers have scrambled to expand into the prediction space in various forms, either by building their own exchanges, acquiring existing ones or engaging in market-making.

Commercial sports betting generated just under $17 billion in nationwide revenue in 2025, which is why Davenport asserts that the “stakes of this case are exceptionally high”. Kalshi and Polymarket alone posted more than $45 billion in trading volume, which is similar but not identical to betting revenue, in August. That was a 15% decline from July, although that drop is attributed to the conclusion of the Fifa World Cup tournament that month per Yahoo! Finance.

The American Gaming Association estimates that the exchanges have siphoned more than $1.3 billion in would-be tax revenue from states. One of the AGA’s primary spokespeople pin its fight against prediction markets is former New Jersey governor Chris Christie, who championed the PASPA case to the Supreme Court.

How to play Fat Santa

Kalshi’s compliance department uncovered a series of large trades made by Santos throughout February 2026 involving contracts that would pay out based on whether he attended the State of the Union address on 24 February. 

The exchange reported that Santos then issued public statements regarding his attendance, some deemed false or misleading, that were deliberately aimed at influencing the price of “Yes” or “No” contracts connected to his attendance. 

Kalshi stated that these statements successfully moved market prices and that Santos realised profits totalling $17,839.57 from the trades. After detecting Santos’ trades, Kalshi froze his account then referred the matter to federal authorities, NPR reported.