[Prediction Market Dominance: Polymarket and Kalshi Lead, Latecomers Struggle to Survive] October 26 news, according to Dune data, the prediction market's market share is dominated by Polymarket and Kalshi, with latecomers struggling to find a foothold. Over the past week, Polymarket led the prediction market in nominal trading volume with $1.062 billion, followed by Kalshi with $950 million, while Limitless and Myriad recorded $21.93 million and $3.85 million, respectively. In terms of the number of transactions, Kalshi ranked first with 3.575 million transactions, followed by Polymarket with 2.586 million transactions, while Limitless and Myriad recorded 378,000 and 66,000 transactions, respectively.