Kalshi, a US regulated prediction market platform, has raised $1 billion, valuing the company at $11 billion. The round was led by existing investors Sequoia Capital and CapitalG, with participation from Andreessen Horowitz, Paradigm, Anthos Capital and Neo. The valuation boost brings Kalshi closer to the $12 billion to $15 billion valuation sought by its rival Polymarket. It also comes just a month after Kalshi announced the completion of a $300 million funding round at a valuation of $5 billio...