Two years after purchasing 10 million shares of Apple then-valued at $1.1 billion, Warren Buffett’s Berkshire Hathaway’s stake in the company is now worth nearly $50 billion, CNN reports citing a regulatory filing.

Why it matters: Earlier this week, Apple became the first-ever U.S. company to have its market cap hit $1 trillion. Berkshire’s stake in Apple is the largest of its substantial investment portfolio.

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