Polymarket's monthly volume declines for first time since August

Prediction markets trading volume had been tracking monthly gains as the sector gains popularity among short-term traders, but competition is also increasing.

Monthly trading volume on the Polymarket prediction market fell by about 8.9% in April, the first decline in month-to-month activity since August as rivals like Kalshi increase their market share.

Polymarket and its US-based trading application collectively generated more than $10.2 billion in volume in April, compared to more than $11.2 billion in March, according to data from Dune Analytics.

However, rival Kalshi’s April trading volume surged by about 13%, climbing to about $14.8 billion, Dune data shows. 

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