Learn
Sports event contracts explained: bets, swaps or both?
Sports is now the most traded topic on Kalshi & Polymarket, the two leading prediction markets, according to Pew Research Center. This guide sets out what sports event…
Reporting
Learn
Kalshi vs Polymarket: regulation, fees, markets & access compared
Kalshi & Polymarket are the two leading prediction markets, but they reached the US market by different routes & charge, fund & face regulators differently. This guide sets…
Learn
How prediction markets work: contracts, prices & payouts
A prediction market contract pays $1 if its yes/no question resolves your way & $0 if not, & its price reflects what traders will pay now. This guide…
Learn
2026 midterm election markets: how to read the odds
A plain-language guide to the markets on the 3 November 2026 US midterms. It covers the races, the federal legal history & the evidence on whether election markets…
Learn
How to read prediction market prices as probabilities
A prediction market price is often reported as a percentage chance. This guide explains where that reading comes from, which price is shown, how fees shift break-even &…
Sports
NBA wants trading data as NFL backs states in jurisdiction fight
Adam Silver wants prediction-market trading data to police insider trading before the NBA season starts 20 October 2026.
Markets
IG Group’s $1.1bn Underdog deal chases US prediction bets
IG Group's proposed $1.1bn buyout of Underdog aims to more than double its US revenue through prediction markets.
Learn
How on-chain prediction markets work, from collateral to the CFTC
On-chain prediction markets run on blockchains & settle in stablecoins, but a company can still define & resolve the contracts. This guide covers collateral, order books, Myriad's move…
Learn
How prediction markets resolve & how disputes are settled
A prediction market is settled by its written rules, not its title. This guide explains Kalshi's process, UMA's proposal-&-dispute system, two disputed markets, & CFTC staff views on…
Markets
Four tribes break ranks & partner with Kalshi on apps
Four more Native American tribes have signed app deals with Kalshi, deepening a rift with established tribal gaming groups.