NEW YORK (TheStreet) -- TheStreet's Jim Cramer says traders must accept the fact that activist investor William Ackman will not stop his campaign against Herbalife (HLF) until the stock reaches zero and that a company can sometimes be defenseless in those situations. He advises investors to be careful with Herbalife, as Ackman could target individual company directors.
As for FuelCell (FCEL), Cramer notes that any stock that quadruples (FuelCell had actually quintupled at one point this month) is vulnerable. He says FuelCell has a real business that could one day be profitable, but notes that investors have pushed the stock around in recent weeks. He adds the stock could trade down to $3 or up to $7.
Finally, Cramer thinks Symantec (SYMC) was too deep into desktop and not enough into mobile. He suggests caution on Symantec and instead suggests FireEye (FEYE), which hit $96 and had a secondary public offering at $82 a share. He says FireEye "can't get out of its own way" and is a high multiple stock. Symantec may not climb simply because it is a low multiple stock.