Lately, Best Buy Co. has been a lot of analysts' best friend. That wasn't the case a year ago. Back then, the electronics retailer was on the ropes, and Wall Street was beginning to question whether it could survive. A mid-November 2012 presentation to analysts on Best Buy's plans from its newly installed chief executive, Hubert Joly, failed to inspire. A week later, it reported fiscal-third-quarter results that were even worse than it had warned, with same-store sales off 4.3% from a year earlier. The stock fell 13% that day, and it would have been one of the best times to buy Best Buy. The share price has risen 264% since then. That has led Wall Street to change its tune: 58% of analysts following the company now rate its stock as a "buy" or "outperform," according to FactSet, compared with 4% a year ago.