Buffett's 2016 Precision Castparts buy now thriving on AI data center boom

Warren Buffett's Berkshire Hathaway stepped back from a once-maligned acquisition after Precision Castparts, a Portland, Oregon-based maker of specialty metal components for aerospace and industrial sectors, recently demonstrated resilience and newfound momentum.

Berkshire purchased Precision Castparts in 2016 for $37.2 billion（約6兆円）, betting on the company's economic moat in its niche. However, the pandemic devastated aerospace demand in 2021, leading Berkshire to write down nearly $10 billion（約1.6兆円） in goodwill tied to the acquisition and effectively admitting the deal had failed. At that time, Precision was generating just $900 million（約1400億円） in annual operating cash flow, a sharp decline from the roughly $1.7 billion（約2700億円） it produced immediately before Berkshire's acquisition.

Today the picture has transformed. Beyond a rebound in aerospace demand, Precision Castparts has found an unexpected lifeline in the AI data center boom. As hyperscalers increasingly power data centers with gas-powered turbines, they need specialty components nearly identical to those found in jet engine turbines—precisely the products Precision makes. As one of just a few companies capable of serving this niche market, Precision has capitalized on the opportunity. Last year, the company reported $2.4 billion（約3800億円） in operating cash flow, a 167% increase from 2021's pandemic lows and a 41% rise above pre-acquisition levels.

While Precision Castparts' indirect AI exposure does not transform Berkshire Hathaway into a pure-play AI stock—the trillion-dollar conglomerate's insurance business far outweighs its technology exposure—the case illustrates Berkshire's strength in identifying high-quality assets and benefiting from long-term holding periods. Buffett's successor, Greg Abel, will ultimately decide whether to increase Berkshire's AI exposure, but the Precision Castparts turnaround suggests the conglomerate's philosophy of purchasing quality businesses at fair prices and holding for the long term positions it well to capture emerging economic trends.

Berkshire Hathaway's path to AI exposure reveals the power of patient, quality-focused investing. The company holds major stakes in Apple and Alphabet—both classified by some as AI plays—yet avoids pure-play AI stocks like Nvidia or Palantir. Instead, Precision Castparts demonstrates how long-held assets can unlock value from emerging trends. Buffett's 2016 bet on the specialty metal components maker seemed prudent at the time due to its aerospace business, but the pandemic in 2021 forced Berkshire to acknowledge the purchase as ill-fated, writing down nearly $10 billion（約1.6兆円） in goodwill.

The recent resurgence reflects a shift in demand: as hyperscalers deploy gas-powered turbines to power data centers, they require components nearly identical to those in jet engine turbines—the very niche Precision Castparts dominates. This positioning as one of just a few companies in its industrial segment has proven decisive. The company's operating cash flow recovery from $900 million（約1400億円） in the pandemic trough to $2.4 billion（約3800億円） in the latest year underscores both the severity of the pandemic disruption and the magnitude of the current data center opportunity.

The broader lesson for Berkshire is that long-term ownership of high-quality assets at reasonable prices can yield unexpected windfalls when economic conditions shift. Whether successor Greg Abel pursues direct AI exposure or relies on similar indirect plays remains an open question, but Precision Castparts suggests the conglomerate's disciplined approach is well suited to capitalizing on the AI megatrend.

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