Bill Gross, the co-chief investment officer at $1.97 trillion bond manager Pimco, lambasted billionaire investor Carl Icahn on Thursday [Oct. 24] for his involvement in Apple's strategy, but he failed to elicit an equally biting response from the veteran activist.
Gross said on Twitter:
"Icahn should leave #Apple alone & spend more time like Bill Gates. If #Icahn's so smart, use it to help people not yourself."
Icahn on Thursday, in a public letter to Apple Chief Executive Tim Cook, called on Apple to commence a $150 billion share buyback immediately.
(Read more: Carl Icahn: Could consider an Apple proxy fight)
In responding to questions on CNBC about criticism from Gross and former Apple CEO John Sculley, Icahn was relatively low-key and respectful of Gross.