was down 61.5% in late trading after two brokerages issued rare sell ratings. The company had already plunged today after badly missing third-quarter earnings estimates and losing the support of its chief financial backer,
Loral Space & Communications
cut Globalstar to sell from neutral, saying, "we feel that the equity value of Globalstar's shares is zero."
Credit Suisse First Boston
cut it to sell from hold.
, a supplier to Globalstar, was down 9.5%.