FuelCell Energy is trading at $12.49, down 5.38%, in pre-market on October 22 as broader risk sentiment weakened. - U.S. futures and Asian shares fell amid renewed concerns about AI spending and Middle East tensions. - The company said on October 21 that its Block System received a 99.873% PJM capacity rating; the positive announcement preceded the prior session’s rise and does not explain this morning’s decline. - No new company-specific catalyst for the pre-market decline was found.