General Motors Stock Slips as Weak GAAP Profit, EV Sales Overshadow Earnings Beat

General Motors (NYSE: GM) stock fell in pre-market trading Tuesday after its second-quarter 2026 earnings report revealed underlying weaknesses that overshadowed better-than-expected adjusted results and an upgraded forecast.

A Beat on Headline Numbers

The automaker reported strong top-line and bottom-line figures for the second quarter. According to the release, GM posted:

• Adjusted EPS: $3.57, significantly higher than the analyst consensus of approximately $3.18.
• Revenue: $48.0 billion, which surpassed expectations of $46.99 billion and represented a 1.9% increase year-over-year.

Looking ahead, General Motors also raised its full-year 2026 financial outlook. The company lifted its adjusted EBIT guidance by $500 million at the midpoint to a new range of $14.0 billion to $16.0 billion. It also increased its adjusted EPS forecast to between $12.00 and $14.00.

Underlying Weakness Drives Sell-Off

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Despite the positive adjusted figures, investors focused on deteriorating fundamentals in the unadjusted results. The company's GAAP net income fell 31% to $1.3 billion from $1.9 billion in the same period last year, tempering enthusiasm from the headline beat.

Adding to the concerns, the report detailed a significant slowdown in key growth areas. EV sales volumes dropped sharply during the quarter, with some models seeing declines of over 60%. Furthermore, total U.S. vehicle deliveries contracted by 4.2% year-over-year to about 715,000 units.

Market Context

GM's stock decline appeared to be a company-specific reaction rather than a reflection of broader market sentiment, as major U.S. indices were trading higher. The negative response suggests investors are scrutinizing underlying profitability and sales momentum, particularly after the stock had gained 55% over the past twelve months leading into the report.

The results set a cautious tone for the auto sector, with peer Ford scheduled to report its own earnings next week. The market's reaction to GM's report illustrates that a strong adjusted earnings beat and a guidance raise may not be enough to satisfy investors when GAAP profitability and sales volumes show signs of strain.