The US prediction market is experiencing rapid growth, driven by regulatory arbitrage and marketing strategies, but its long-term sustainability remains in question. Most US states lack comprehensive regulations for sports betting through prediction markets, allowing platforms like Kalshi and Polymarket to thrive. In 2025, sports-related transactions made up 85% of Kalshi's trading volume and 39% of Polymarket's. These markets operate under the guise of futures contracts regulated by the Commodity Futures Trading Commission (CFTC), enabling sports betting in states where it is otherwise prohibited. Analysts warn that the prediction market's reliance on regulatory loopholes could be its downfall if federal sports betting legalization occurs. Institutional investment is also hindered by insufficient market integrity and low trading volumes in non-sports markets. For instance, Kalshi's market for predicting January CPI inflation data is under $1 million, with core inflation markets even smaller, deterring institutional investors. Experts express concerns about the ethical implications of commodifying current events, questioning the societal impact of such a model.