(Bloomberg) — Tesla Inc.’s shares rallied for a fifth day Monday, adding more than $100 per share, as a torrent of good news further boosted investor sentiment.The stock rose as much as 21% to $786.14, its highest price ever, and the stock’s best intraday gain since May 2013.Earlier today, Panasonic Corp., which makes batteries for Tesla at its jointly operated battery plant in Nevada, said the business turned profitable in the quarter ended Dec. 31. The rapid increase in Tesla’s output helped push that business into the black, Panasonic Chief Financial Officer Hirokazu Umeda told reporters in Tokyo on Monday, […]