I think you're putting a bit too much faith in due diligence for a market that is largely run by algorithms. There was some Google traffic for "GE fraud" right before market open and then search traffic spiked at 10:40am.[1] Now look at the trajectory of GE's share price this morning.[2]
[1] https://trends.google.com/trends/explore?date=now%201-d&geo=...
[2] https://www.google.com/search?q=GE&tbm=fin#scso=_RrNVXabVDev...