X-Energy is trading 4.06% down at $14.41 as investors digest the Federal Reserve’s September 16, 2026 rate increase to 3.75%-4.00% and guidance signaling another hike by December.

  • Higher Treasury yields and fading rate-cut expectations are weighing on growth-sensitive equities, while major U.S. indexes are also lower.
  • X-Energy’s UK reactor regulatory milestone announced September 15 remains positive but does not explain today’s decline.