Robinhood Markets IncRobinhood's joint venture Rothera debuted with $2 billion in notional volume, capturing 7% of the U.S. prediction market, indicating strong demand for its new platform.

Prediction market platforms saw record trading volumes in June, fueled by the 2026 FIFA World Cup. Kalshi reported over $31 billion in notional volume, a more than 70% increase from May's $17.9 billion, and has consistently exceeded $1 billion daily since the tournament began on June 11. Polymarket's international exchange set a new monthly record with notional trading above $10.8 billion, reversing declines in April and May, while its U.S. platform did over $3.5 billion, up from $1.77 billion in May. New entrant Rothera, a joint venture between Susquehanna International Group and Robinhood, debuted in June with $2 billion in notional volume, capturing 7% of the U.S. prediction market, according to Bank of America. Open interest also rose, with Kalshi above $1 billion and Polymarket just under $400 million, as platforms used the World Cup to test their ability to handle sustained high-volume environments under regulatory scrutiny.
Robinhood Markets IncRobinhood's joint venture Rothera debuted with $2 billion in notional volume, capturing 7% of the U.S. prediction market, indicating strong demand for its new platform.
Bank of America CorpKalshi reported record $31 billion notional volume in June, up 70% from May, driven by World Cup.
Polymarket's international exchange set a new monthly record with over $10.8 billion notional trading, and U.S. platform did over $3.5 billion.
Rothera debuted with $2 billion in notional volume, capturing 7% of the U.S. prediction market, driven by World Cup demand.
Susquehanna International Group's joint venture Rothera saw strong initial volumes, reflecting demand for its prediction market platform.