Polymarket forecast market month-to-month buying and selling quantity fell by about 8.9% in April, the primary month-on-month decline since August, as rivals akin to Karshi acquire market share.
Polymarket and its US-based buying and selling functions mixed generated greater than $10.2 billion in buying and selling quantity in April, in comparison with greater than $11.2 billion in March, in keeping with knowledge from Dune Analytics.
However rival Kalsi’s buying and selling quantity jumped about 13% in April to about $14.8 billion, in keeping with knowledge from Dune.
The month-to-month complete buying and selling quantity of the prediction market additionally elevated from about $26.5 billion in March to about $29.8 billion in April, a rise of about 12.4%.

Prediction market month-to-month quantity figures. sauce: dunes
Polymarket’s quantity decline comes as the corporate seeks to totally combine the U.S. market once more, amid elevated authorized and regulatory scrutiny of prediction markets from U.S. lawmakers following the sector’s phenomenal progress through the 2024 election.
Certainly, prediction markets have confirmed enticing to many new rivals.
Prophet, an AI-native prediction markets platform, launched its first stay buying and selling tranche final week, introducing a system the place AI fashions act as buying and selling counterparties utilizing actual capital. Earlier this week, monetary know-how firm MoonPay debuted an AI know-how device for prediction market buying and selling methods.
Polymarket focuses on US growth as prediction markets come below criticism
Polymarket is seeking to increase its presence within the U.S. after exiting in 2022 as a part of a settlement with the U.S. Commodity Futures Buying and selling Fee (CFTC) that barred U.S. residents from collaborating within the firm’s main worldwide exchanges.
To regain its footing, the corporate launched a devoted app for US clients in December 2025, however this platform is remoted from Polymarket’s international platform and its liquidity.
A number of U.S. lawmakers and regulators have expressed issues about insider buying and selling in prediction markets, notably these associated to battle, vitality costs, and different geopolitically delicate points.

Senator Elizabeth Warren and different US lawmakers have written to the CFTC calling on it to crack down on insider buying and selling. sauce: senator elizabeth warren
In March, Sen. Elizabeth Warren and greater than 40 members of Congress despatched a letter to the CFTC requesting a ban on authorities insiders benefiting from prediction market platforms whereas in workplace or in public service.
“The CFTC maintains that occasion contracts are a kind of swap that falls below the fee’s jurisdiction, and subsequently ought to be certain that federal staff perceive current restrictions on insider buying and selling in prediction markets,” the lawmakers mentioned.
Wisconsin Legal professional Basic Josh Kaul additionally filed a lawsuit in April in opposition to Calci, Polymarket and different prediction markets, alleging the platforms violated the state’s sports activities betting legal guidelines.

