Meaning of the verb "to pooch"?
My first thought was that this is probably a shortening of the phrase to screw the pooch.
(idiomatic) to screw up; to fail in dramatic and ignominious fashion
But Wiktionary also has a listing for pooched as an adjective, with no mention of the longer phrase:
(slang) made unusable; broken; buggered (British)
I would say this is not a common use of the word in US English, but that most American readers would get the meaning here.
According to OED.com, pooch exists as a verb in American Football.
trans. To kick (a ball) a short distance towards the opposition's linemen rather than the designated receiver; to make a pooch kick. Also intr.
So it could be related to that - but pooching in this instance is a deliberate action, and is intended to make the ball difficult to handle. The reported mess up at NASDAQ seems to be a mistake. So I would still think this is related to screw the pooch.