Healthways rally powers on

The impressive rally in shares of wellness services provider Healthways shows few signs of coming to a halt after breaking through $20. Heading into the week's last hour of trading, Healthways (Ticker: HWAY) was changing hands around $21, up 3.6 percent on the day and at their highest level since the last week of August of 2008. One caveat to consider about the strength of the rally: Trading volume hasn't been above the stock's three-month average since Aug. 21.