Apple’s share are trading at US$229.45 which is a 52-week high — and an all-time high. The company now has a market cap of US$207.99 billion.

As noted by “All Things D” (, this means it ranks fourth in a list of the top five publicly traded U.S. companies, which are: Exxon Mobil, $315.05 billion; Microsoft, $261.71 billion; Wal-Mart, $212.19 billion.

Writing for “All Things D,” John Paczkowski notes that this is “an astonishing turnaround for a company whose market cap bottomed out at $630.9 million back in 1982.”