Cisco (CSCO), Best Buy (BBY), Barnes & Noble (BKS), China Agritech (CAGC), HHGregg (HGG) Hit 52-Week Lows

Shares of Cisco Systems (Nasdaq:CSCO), Best Buy Co.(NYSE:BBY), Barnes & Noble (NYSE:BKS), China Agritech (Nasdaq:CAGC) and HHGregg Inc. (NYSE:HGG) all hit 52-week lows on Friday, suggesting it may be time to take a more in-depth look at the stocks to see if they're ready for a rebound.

Most of the reasons for the share price of these stocks falling are obvious, for example, whether or not the strategy of Best Buy will be enough to overcome the growing migration of consumers to buy via competitors on the Internet.

But that's not to say some of these may be oversold and are undervalued at this time. Lows could reflect the actual value of the company, or could be an over-response to temporary catalysts.

Best Buy closed Friday at $31.52, up $0.61, or 1.97 percent. Cisco closed at $17.95, up $0.03, or 0.17 percent. HHGregg closed at $13.78, down $0.16, or 1.15 percent. Barnes & Noble ended the session at $11.74, down $0.30, or 2.49 percent. China Agritech closed the trading day at $6.88, down $0.47, or 6.39 percent.