"The first stunner, that JP Morgan was restating the first quarter financials, should have caused a deafening ringing of alarm bells. For a company of JP Morgan’s stature to be compelled to restate prior period financials is a very clear signal of bigger problems with their overall financial reporting. In isolation we would normally expect to see a massive selloff with an event of that seriousness. Analysts and reporters may have missed the significance since it was dropped into a footnote and overshadowed by the other disclosures. …
But the real cause for alarm is the reason for the restatement. JPM was forced to disclose that it relied on its traders to provide honest and accurate valuations for its financial statement disclosures. That’s like putting the foxes in charge of not just the henhouse, but the entire farm."