GM Delivers First Patriot Missile Parts to Lockheed Martin as Its Stock Slides Nearly 5% on Market Rotation

General Motors has entered the defense supply chain, delivering housing components for Lockheed Martin's PAC-3 Patriot missile interceptors just 22 days after signing a partnership agreement. The castings form the outer shell of the PAC-3 missiles and represent GM's contribution to efforts to address U.S. munitions shortfalls that have accumulated during more than six months of conflict with Iran. President Donald Trump invoked the War Powers Act to press defense contractors to accelerate production, providing the backdrop for GM's rapid pivot into missile component manufacturing.

On the same day the Patriot news broke, GM shares fell roughly 5% in one of the stock's worst sessions since July 2025, though the drop was driven by broad market dynamics rather than company-specific news. A cyclical rotation trade that had briefly lifted automakers on Thursday unwound Friday, pulling GM down about 5.12%, Stellantis down about 4%, and Ford back roughly 3.71%, while the S&P 500 slipped just 0.12%.

Separately, GM outlined a software-focused strategy tied to its core pickup truck franchise. The company is introducing a redesigned software experience on the 2027 Chevrolet Silverado 1500 and GMC Sierra 1500, expanding screen real estate and targeting recurring software revenue. GM reported $5.4 billion of deferred revenue from OnStar services, underscoring how central connected-vehicle software has become to its financial model as it looks to complement its dominant 42% market share in full-size pickups with higher-margin recurring streams.