US Senate Moves to Rein In Sports Prediction Markets

Sports prediction markets are facing their most serious legislative challenge yet. US senators from both parties have joined forces to push a bill that would ban prediction contracts tied to sports outcomes, drawing a hard line between financial trading and what critics say has become gambling under a different name. The debate is fast-moving, and the stakes are high for every state that has spent years building a regulated sports betting framework.

Senator Schiff Sounds the Alarm

Democratic Senator Adam Schiff has become the most prominent voice raising concerns about how sports prediction markets operate. His argument is straightforward: these platforms began as financial tools, but many have drifted far from that original purpose. When contracts are tied to who wins a game or how many points a player scores, the distance from sports betting becomes very hard to defend.

Schiff has also pointed to a structural problem at the regulator level. The Commodity Futures Trading Commission, which oversees these platforms under federal commodity law, does not have the staff or the infrastructure to keep pace with the sector’s growth. Enforcement capacity has fallen behind. The CFTC is watching a fast-expanding market with tools designed for something far smaller.

The state sovereignty angle adds another dimension. Schiff warned that federally regulated prediction platforms can accept users in states where sports betting remains illegal. That effectively lets them sidestep local laws. States and tribal nations that have built their gambling frameworks over years are seeing those structures undermined without any vote or regulatory change at the state level.

A Bipartisan Bill Takes Shape

Republican Senator John Curtis has co-led the legislative response. The bill he introduced alongside colleagues would draw a clear boundary within the prediction market space. Contracts linked to sports events and casino-style activities would be prohibited. Contracts that serve a genuine economic purpose, such as hedging against commodity price swings or weather disruptions, would remain fully legal.

Supporters of the bill argue that sports prediction markets are functioning as a workaround. The CFTC licensing that allows these platforms to operate nationally was not designed to cover products that replicate what a sportsbook does. The bipartisan backing reflects how broad the concern has become. This is not a partisan fight about regulation versus free markets. It is a fight about what the rules were actually meant to cover.

Who Bears the Risk

Beyond the regulatory arguments, the bill’s supporters have pointed to two specific concerns about who gets hurt when sports prediction markets go unregulated.

The first is age. Users may be able to participate in prediction markets at younger ages than they could enter a licensed sportsbook. Sportsbooks must comply with state age verification rules. Federally regulated prediction platforms operate under a different framework. That gap creates an obvious risk.

The second concern is about fairness. Data cited by supporters shows that a small group of sophisticated, high-volume traders captures most of the profits on these platforms. Casual users, who make up the majority of participants, consistently end up on the wrong side of those trades. Critics say the platforms market themselves as open and accessible while quietly favouring those with algorithmic advantages.

The Industry Pushes Back

Not everyone in the prediction market space accepts this picture. Kalshi, one of the largest regulated exchanges in the US, has pushed back firmly. Its executives say the platform operates transparently, functions under federal oversight, and should not be treated as equivalent to an unregulated gambling site. They argue prediction markets serve a real purpose. They give participants a way to hedge against uncertainty in business, politics, and economic conditions. Banning sports contracts, they say, would cut off a product that many users find genuinely useful.

The legal fight is running alongside the legislative one. Courts in several states are currently deciding whether prediction contracts fall under federal commodity law or state gambling statutes. Those rulings could shape the regulatory landscape before Congress has a chance to act.

What Comes Next for Sports Prediction Markets

The regulatory picture around sports prediction markets is getting more complex every month. Platforms are expanding their connections to cryptocurrency and algorithmic trading, which makes oversight harder and the stakes higher. Policymakers are under real pressure to define what these products are before the market grows further.

Schiff has stopped short of calling for a full ban. His position is that the sector needs a clear legal framework that separates legitimate financial tools from products that function as sports bets. The Curtis bill is the most concrete attempt yet to draw that line. Whether it advances through the Senate will tell a lot about how seriously Congress is ready to take the issue.

For now, sports prediction markets remain in a legal grey zone. The bill has made that grey zone significantly harder to ignore.