Berkshire Hathaway Invests in AI Stocks, Nvidia Faces Competition from 67% Gaining Companies

Berkshire Hathaway has invested $330 billion in AI stocks, while Nvidia faces stiff competition from companies like Lumentum Holdings and Applied Materials, which have gained 121% and 67% respectively this year. These AI stocks are gaining momentum due to the massive AI infrastructure investments.

Two AI-linked threads are converging in the latest market coverage: Berkshire Hathaway's deepening exposure to AI-adjacent megacaps, and a cohort of smaller AI-infrastructure names that have sharply outpaced NVDA this year . Roughly 37% of Berkshire's approximately $330 billion equity portfolio now sits in three AI-exposed holdings, with AAPL its largest position at about $68 billion, or 20.7% of the book, alongside stakes in GOOGL and Coca-Cola.

Meanwhile, optical and semiconductor-equipment suppliers tied to the AI data-center buildout have outrun Nvidia's year-to-date return. LITE has gained about 121% and AMAT roughly 67% in 2026 , versus around 12% for NVDA. Lumentum's optical components address a key bandwidth bottleneck in AI clusters, and its earnings per share rose more than fourfold year over year to $5.27 in the first nine months of fiscal 2026 .

Rather than competing with Nvidia, these names are largely complementary to it: Nvidia disclosed a $2 billion strategic investment in Lumentum in March 2026, reinforcing the supplier's role in its AI roadmap . For investors, the divergence shows how AI gains have broadened beyond the headline GPU maker into the optics and equipment layer, even as concentrated megacap bets like Berkshire's continue to anchor large institutional portfolios. Sustained data-center capital spending remains the key variable to watch.

Berkshire Hathaway Invests in AI Stocks, Nvidia Faces Competition from 67% Gaining Companies

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