Benzinga·2025-10-16 08:42Core Insights - Polymarket has launched a new "up/down" equity market feature, allowing users to bet on the closing prices of specific stocks and benchmarks [1][2] - The platform has gained traction with high-profile stocks like Tesla, Nvidia, and Microsoft, as well as major indexes such as the S&P 500 and Dow Jones [2][3] - Polymarket's recent expansion includes the introduction of company earnings prediction markets, marking its re-entry into the U.S. market [3] Investment and Valuation - Polymarket secured a $2 billion investment from Intercontinental Exchange Inc., raising its post-money valuation to $9 billion [4] - Prior to this investment, Polymarket attracted a multi-million-dollar investment from Donald Trump Jr.'s venture capital fund, 1789 Capital [4] Historical Context - The platform gained significant attention during the last presidential election, with over $3 billion wagered on the outcome, accurately predicting Trump's victory [5]