X-Energy’s $1 Billion Nuclear IPO Faces Its First Test After Wall Street Pop

X-Energy Inc. wrapped up its debut week trading as a public company solidly above its IPO mark, a boost for the Amazon-backed nuclear firm as it moves from client feasibility work toward actual reactor construction. Shares settled at $30.53 Friday—off 3.8% for the day, but still standing roughly 33% higher than the $23 offering price.