Polymarket’s monthly trading volumes have declined in April, which is a significant development for a firm that had been registering consecutive increases for the past several months.
The platform witnessed an 8.9 percent month-on-month reduction in trading volumes, thereby halting its upward trend that had been ongoing since August. The development can be attributed to the changing dynamics of the prediction market industry, wherein other competitors, such as Kalshi are equally popular.
There is also growing regulatory pressure on the prediction markets, making operations more difficult for these platforms.
Despite this negative trend, Polymarket and its applications specifically used for the U.S. market registered over $10.2 billion in trading volumes in April as compared to over $11.2 billion in the previous month.
Is Polymarket’s volume decline serious?
Though the reduction might be small percentage-wise, it is important because it has come in the wake of the era of fast growth for the sector, driven by a strong appetite for political, economic, and event-driven markets.
The Polymarket project experienced its greatest popularity, especially at the time of the 2024 U.S. election cycle, when trading reached record-high levels.
Meanwhile, the competitor platform Kalshi was steadily gaining popularity too, seeing its trading increase by about 13 percent to the level of approximately $14.8 billion per month in April. At the moment, competition in the prediction markets sector has never been more intense as everyone is eager to get first place in line.
Despite the decrease in trading on Polymarket, prediction markets as a whole have seen their total monthly trading volume grow from $26.5 billion to nearly $29.8 billion in April, or by around 12.4 percent.
Polymarket faces key phase as it rebuilds U.S. presence
The slowing down of Polymarket is occurring in a crucial period for the project since it attempts to establish itself in the U.S. market. Following the departure from the American territory, the settlement with the Commodity Futures Trading Commission (CFTC), which barred it from providing its services to American citizens via its primary global platform.
A dedicated app for the U.S. customers was released in December 2025; however, the service still runs independently from the global exchange, having separate liquidity pools and weak integration with each other.
Nevertheless, the industry has been undergoing rapid innovation with multiple players entering the field. The platform called Prophet, which describes itself as an AI-native prediction market, introduced live trading functionality, which allows artificial intelligence to operate as counterparties by deploying real capital.
Another development was made by the fintech firm MoonPay when it released a specialized AI algorithm that assists users in devising successful trading strategies suitable for prediction markets.
However, there has also been increased regulatory pressure coming from the US Congress. Elizabeth Warren, a U.S. Senator, alongside over 40 congressmen, asked the CFTC to tighten its control and limit the involvement of governmental officials to ensure that there is no conflict of interest.
To add insult to injury, the Wisconsin State Attorney General, Josh Kaul, filed lawsuits against the Kalshi and Polymarket, for allegedly violating the state laws on sports gambling.