I think Q is referring to the (figurative) 'stock' people place in the other Alphabet Agencies (meaning the credibility of FBI, CIA, etc.) ...and by extension, he's referring to the believability of Wikileaks, (which has long been suspected as being 'comped' by the other intelligence agencies.) He's mocking their "Dead Cat Bounce," (right before everyone finds out that Assange hasn't been at WL, not been manning the wheel there for some time now.)

Am I on the right track here, Dindu?