PSINet on the Block?

Trading in

PSINet

(PSIX)

, a provider of Internet access and Web hosting, was halted near midday with the stock down 3.5% and resumed around 12:25 p.m. up 1.7%. The company announced that it has hired

Goldman Sachs

to explore options, including its sale. CEO William Schrader said this month that the company would consider alternatives if it does not see a path to positive cash flow.