Three Middle Tennessee stocks are changing hands at or near their highest prices in a year. Delek US Holdings (Ticker: DK) reached $19 Thursday afternoon and is trading just below that today. The last time shares of the Mapco parent company were this high was in the first days of 2008.

You don't have go to back quite as far — last October, in fact — for the last time Healthways (Ticker: HWAY) was trading as high as it is today. But investors seem to think the wellness services provider will be one of the biggest beneficiaries of health reform: Since last Thursday, the stock is up 20 percent.

Also at a 52-week high is Louisiana-Pacific, which is benefiting from the gradual increase in optimism about the housing market. The building products manufacturer (Ticker: LPX) is up more than 20 percent in the past month — a move that included some very high-volume days — and is now at its highest point since April 2010.