6. Authentidate Holding ( ADAT) Company Profile: Authentidate provides software applications and Web-based services for businesses. The surge in Authentidate's stock started in early April after the company completed the sale of its wholly owned subsidiary, Authentidate International AG, to Switzerland's Exceet Group AG. The transaction yielded net cash proceeds of $1.3 million. During the second half of April, the Department of Veterans Affairs, Ameri-Quipt and Superior Oxygen & Medical Equipment selected Authentidate's services. Current Share Price: 93 cents (Sept. 28) 2011 Total Return: 109% Analyst Ratings: Sidoti & Co. is the lone firm with research coverage on Authentidate, rating the stock "neutral" with no price target. TheStreet Ratings has a "sell" rating on the stock. The latest report on Authentidate says one of the most important negative areas for the company is the "overall disappointing return on equity."