What Happened?

A number of stocks fell in the afternoon session after markets reacted to President Trump's threat to "completely obliterate" Iran's energy infrastructure and the critical Kharg Island hub. 

The ultimatum raised the specter of a total energy supply shock. Notably, Kharg Island handles 90% of Iran's crude exports. The escalating rhetoric, including potential ground force deployment to seize fuel hubs, drove a flight to safety.

The stock market overreacts to news, and big price drops can present good opportunities to buy high-quality stocks.

Among others, the following stocks were impacted:

• Renewable Energy company FuelCell Energy (NASDAQ: FCEL) fell 5.3%. Is now the time to buy FuelCell Energy? Access our full analysis report here, it’s free.
• Renewable Energy company Shoals (NASDAQ: SHLS) fell 5.1%. Is now the time to buy Shoals? Access our full analysis report here, it’s free.
• Renewable Energy company Array (NASDAQ: ARRY) fell 5.9%. Is now the time to buy Array? Access our full analysis report here, it’s free.
• Renewable Energy company Generac (NYSE: GNRC) fell 5%. Is now the time to buy Generac? Access our full analysis report here, it’s free.
• Construction and Maintenance Services company Comfort Systems (NYSE: FIX) fell 7.9%. Is now the time to buy Comfort Systems? Access our full analysis report here, it’s free.

Zooming In On Comfort Systems (FIX)

Comfort Systems’s shares are very volatile and have had 28 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 7 days ago when the stock gained 4.2% on the news that the Trump administration postponed military action against Iran's following 'very good and productive' talks. 

The Dow Jones Industrial Average responded with a significant jump as the news sent a wave of optimism through trading floors. This type of broad market rally is often led by cyclical sectors, such as industrials, which are sensitive to global economic stability. Companies like construction equipment firm Caterpillar and manufacturing conglomerate 3M, which have large international operations, were among the top performers. A decrease in geopolitical risk can lead to lower oil prices and a more stable outlook for global trade and large-scale projects, directly benefiting these firms.

Comfort Systems is up 28.5% since the beginning of the year, but at $1,290 per share, it is still trading 12.3% below its 52-week high of $1,471 from March 2026. Investors who bought $1,000 worth of Comfort Systems’s shares 5 years ago would now be looking at an investment worth $17,154.

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