There is one issue that we believe undermines the fabric and credibility of the stock market and it will darken everyone's door some day. That issue is the murkiness of pre & after-hour trading and their impact on risk control tools like stop loss orders.
Currently, these extra hours of trading do not trigger stop-loss orders. As a result, this creates an uneven playing field for those with the access and those without the access to pre/post market trading. The impact of an uneven playing field in after-hours will ultimately be the undoing of the market in general.
Disclosure: I have no positions in any stocks mentioned, and no plans to initiate any positions within the next 72 hours.