Berkshire ended 2021 with $146.7 billion in cash, though it has since invested well over $5 billion in Occidental Petroleum Corp OXY.N as oil prices soared. By Jonathan Stempel March 14 (Reuters) - The share price of Warren Buffett's Berkshire Hathaway Inc BRKa.N reached $500,000 for the first time on Monday, reflecting the company's status as a defensive stock in a market unsettled by events in Ukraine and rising inflation. Among those expanding elsewhere is Dairy Queen, which plans by 2030 to add 600 stores in China, already its largest market outside the United States.