Stockpickr Lists: Travelzoo Blues

Editor's Note: In this feature from Stockpickr, we highlight lists of stocks that have made new highs, lows or seen other unusual activity.

Biggest % Gainers: Dynacq Healthcare(DYII Quote) skyrocketed more than 200% Monday after the company posted spectacular third-quarter results that shattered estimates. The Houston health care company reported income of 16 cents a share, up from 3 cents a share a year earlier. The stock gained $5.14, to close Monday at $7.87.

52-Week Highs: Blue Nile(NILE Quote) hit a 52-week high of $81.75 after the online jewelry seller received a positive analyst report. Citibank upgraded NILE to buy from hold and upped its price target to $88. The company closed the day up $6.59, or 9.2%, at $78.56.

Rising on Unusual Volume: Penford(PENX Quote) experienced heavy trading volume as the chemical company gained 2% Monday. The stock closed up 71 cents at $35.59. ...