Kalshi traders are pricing Alexander Zverev as a 57% favorite over Ben Shelton in Sunday's US Open men's final. Shelton is bidding to end a 23-year American Grand Slam title drought.

Kalshi prices the Kansas City Chiefs at 56 cents to win their Week 1 matchup against the Denver Broncos. Both quarterbacks are projected in roughly half of DFS lineups: Patrick Mahomes at 52.2% and Bo Nix at 51.5%.

Kalshi's most traded NFL Week 1 market is Dallas Cowboys at New York Giants, scheduled for Sunday at 8:20 p.m. ET. The matchup tops the exchange's opening weekend board. Separately, Kalshi and Polymarket traders are pricing Buffalo Bills vs. Houston Texans as the tightest Week 1 game. Both platforms are listing player prop contracts alongside game outcomes. The Cowboys-Giants market leads the Week 1 slate in user activity on Kalshi.

Kalshi traders have pushed down the price on a JJ McCarthy trade market by 5% from where it stood less than a week ago. The market settles based on whether the Minnesota Vikings quarterback is still with the team as of December 1, 2026.

Polymarket and Kalshi, the two dominant prediction market incumbents, are working to capitalize on the NFL season and midterm elections this fall, according to CNBC. Smaller exchanges are also seeking to gain traction around the two events.

Kalshi traders are pricing Tennessee at 82% to win its Week 2 college football matchup against Georgia Tech, with the Yellow Jackets at 19%. Georgia Tech is coming off a stunning home upset loss to Colorado.

Polymarket traders are pricing a 64% chance that Bitcoin reaches $80,000 this month, while a dip to $75,000 is priced at 68.5%. The odds shifted after Bitcoin came within $163 of $80,000 on September 11 but failed to hit the mark. The market reflects near-term volatility expectations around the cryptocurrency's price action.

As the NFL season kicks off, celebrities including LeBron James, Sydney Sweeney, and Marshawn Lynch have begun endorsing prediction markets. The article frames this as part of a broader prediction market roundup tied to the NFL season launch.

The widespread clash over whether regulation of prediction markets falls under federal or state jurisdiction is moving closer to the U.S. high court. The jurisdictional fight has been building as state regulators and federal authorities stake competing claims over which level of government should oversee event-contract platforms. A Supreme Court ruling would settle the split and define the regulatory boundary for the industry.

Election officials have barred certain public workers from participating in prediction markets. The ban targets employees whose roles could create conflicts of interest or informational advantages when trading on event outcomes. The restriction reflects growing concern about insider-trading risks as prediction markets expand into politically sensitive domains.

Kalshi traders are pricing Widow's Bay at 82% to win Best Comedy at the 78th Emmy Awards, and 84% to win the most awards overall. The comedy series is the clear favorite in both markets on the regulated prediction market platform.

Kalshi prediction-market traders are pricing Notre Dame at a 12% probability to win the college football national championship this season, according to a Facebook post citing the platform. The Irish hold the second-highest odds among teams tracked on the exchange.

KashRock has launched an esports consensus odds API that aggregates pricing from three prediction and betting platforms: Thunderpick, Kalshi, and Polymarket. The service covers Counter-Strike 2, League of Legends, Valorant, and Dota, converting each source's odds into a single de-vigged fair probability. Access to the API is gated.

The Wall Street Journal reported that a cluster of Polymarket accounts won big on companies audited by KPMG. The findings follow an earlier Journal report that a KPMG employee is under investigation for alleged insider trading.

The agency that oversees prediction markets investigated Polymarket trades on Biden pardons and the Iran war, according to documents obtained through a Freedom of Information Act request. The three previously unreported investigations add to scrutiny of the CFTC-regulated platform, which has faced questions about potential insider trading and market manipulation. The probes focused on trading activity around sensitive political and geopolitical events.

Prediction market platforms Kalshi and Polymarket this year began offering contracts tied to U.S. Food and Drug Administration decisions, letting users trade on pharmaceutical regulatory outcomes. The expansion into FDA decisions marks a new contract category for both platforms beyond their existing political and economic markets.

Election officials in Maricopa County, Arizona, and Delaware County, Pennsylvania, have barred employees from betting on prediction markets ahead of the midterm elections. The officials say the bans are designed to guard against insider trading and protect public trust in the electoral process.

A former contestant on reality dating show 'FBoy Island' sued Kalshi Inc. for penalizing him for trading on its prediction markets about his own election-related outcomes. The lawsuit challenges the platform's enforcement actions against the trader.

Cantor & Co. is seeking to help institutional clients move into the prediction-markets space, Brandon Lutnick said. The push follows Cantor's recent partnership with Kalshi, the regulated prediction-market exchange. The move targets growing institutional interest in event contracts as the sector expands beyond retail traders.

Kalshi and Polymarket are deliberately manufacturing cultural moments designed to go viral and persist online regardless of future regulatory constraints they may face, according to a Rolling Stone culture feature published Friday.