Parsons Corporation (PSN) Stock Plunges After FAA Contract Loss – But New $3.5 Billion Defense Wins Keep the Long‑Term Story Alive (December 5, 2025)
Parsons Corporation (NYSE: PSN) just had one of its wildest trading days since going public. On Friday, December 5, 2025, the stock suffered a sharp double‑digit drop after the U.S. Federal Aviation Administration chose rival Peraton—not Parsons—as prime integrator for the massive “Brand New Air Traffic Control System” (BNATCS) modernization program. Reuters+1 Ironically, the sell‑off landed on the same day Parsons announced fresh wins across defense and infrastructure, including a $3.5 billion contract vehicle with the Defense Threat Reduction Agency (DTRA) and major transportation projects in Missouri and the Seattle area. Quiver Quantitative+2GlobeNewswire+2 Below is a full breakdown of what