Prediction markets, once niche financial tools, have surged into the mainstream in 2024, with billions of dollars staked on the outcome of the US presidential election. Platforms like Polymarket and Kalshi have become household names, drawing attention from traders, investors, and regulators alike. These markets allow users to bet on real-world events, from sports outcomes to political developments, using contracts that represent the probability of specific outcomes.

How Prediction Markets Work

Prediction markets function as platforms where users trade event contracts—financial derivatives that let participants buy and sell shares tied to specific outcomes. The price of these shares reflects the perceived likelihood of an event occurring. For example, if the price of a contract predicting a specific candidate winning the US election rises to $0.80, it implies an 80% chance of that outcome.

Binary markets are the most common, offering yes/no choices. For instance, a contract might ask, ‘Will Bitcoin close above $100,000 on February 15, 2025?’ with options of ‘Yes’ or ‘No.’ Other markets have multiple outcomes, such as predicting the winner of the Academy Awards or the English Premier League.

The odds of each outcome are determined by trading activity. If a large number of users start selling shares in a particular outcome, the price of those shares will drop, reflecting a lower perceived probability of that event occurring.

The Rise of Prediction Markets in 2024

In 2024, prediction markets experienced a dramatic surge, particularly around the US presidential election. Polymarket, one of the largest platforms, saw over $4 billion in trading volume on the question, ‘Will Donald Trump win the 2024 US Presidential election?’ Kalshi, another major player, reported cumulative trading volumes exceeding $40 billion.

According to Polymarket, its total trading volume has surpassed $50 billion, making it the largest prediction market platform by both volume and user base. These figures underscore the growing interest in using prediction markets as a tool for both speculation and information gathering.

Users can profit from shifting odds without waiting for an event to conclude. For example, a trader might buy shares in an outcome when the price is low and sell them later when the odds improve, effectively capitalizing on market movements.

“Prediction markets are becoming a mainstream financial instrument,” said a spokesperson for Polymarket. “They offer a unique way to gauge public sentiment and make informed decisions based on real-time data.”

Regulation and Legal Ambiguities

Despite their growing popularity, prediction markets remain in a regulatory gray area in many jurisdictions. In the United States, platforms like Polymarket and Kalshi are required to be licensed by the Commodity Futures Trading Commission (CFTC). However, some legal questions remain, particularly around insider trading and the potential for market manipulation.

For instance, after the January 2026 US military intervention in Venezuela, lawmakers raised concerns about suspicious trading activity on related prediction markets. This led to calls for stricter oversight and alignment with the regulations applied to traditional financial instruments.

Outside the US, the regulatory landscape is even more fragmented. In some countries, prediction markets may be classified as financial instruments or betting products, while in others, they operate with little to no oversight. Most decentralized platforms, such as those built on blockchain technology, continue to function in a legal gray area, often restricting access to users in certain jurisdictions.

“The regulatory environment is still evolving,” said a legal expert specializing in fintech. “While major platforms have obtained CFTC licenses, the broader implications of their growth remain unclear, especially in the context of decentralized finance.”

Broader Implications and Future Outlook

Beyond their role in financial speculation, prediction markets are increasingly being used as a tool for information gathering. High-volume markets can provide insights into public sentiment and expectations, making them valuable for pollsters, businesses, and policymakers.

“Prediction markets are not just about betting—they’re about aggregating information,” said a researcher at a leading financial think tank. “They can offer a more accurate reflection of public opinion than traditional polling methods.”

As the sector continues to grow, new platforms are emerging, including both centralized exchanges and onchain applications. In 2024, several major centralized exchanges, such as Crypto.com and Gemini, launched their own prediction markets, further expanding the industry’s reach.

Looking ahead, the future of prediction markets will likely be shaped by regulatory developments, technological advancements, and the growing acceptance of decentralized finance. With billions of dollars in daily trading volume, these markets are ready to become a significant part of the global financial ecosystem.