X-Energy, a nuclear reactor manufacturer, made a significant entrance into the stock market with its initial public offering (IPO), raising $1.02 billion by selling 44.3 million shares at $23 each, leading to a 30.9% increase in share value on its debut. This surge brought the company's total valuation to $11.9 billion, reflecting strong investor interest in carbon-free energy solutions, particularly as tech giants seek reliable power for data-intensive operations. The Xe-100 small modular reactors (SMRs) developed by X-Energy are designed to be more cost-efficient and reliable compared to traditional reactors, which often face delays and budget overruns. X-Energy's CEO, Clay Sell, emphasized the benefits of being a public company, including enhanced transparency and the ability to invest in its supply chain. The company has secured significant funding, closing two rounds of $700 million each since last year, with backing from notable investors like Amazon and ARK Invest. The IPO comes at a time when the U.S. IPO market is showing signs of recovery, with several high-profile companies preparing to go public.