 Maxim Group restated their buy rating on shares of Nephros OTCMKTS:NEPH in a report issued on Friday morning, AnalystRatings.com reports. Maxim Group currently has a 16.00 target price on the stock. Separately, Zacks Investment Research upgraded shares of Nephros from a hold rating to a strong-buy rating and set a 9.50 target price on the ... 