General Discussion
In reply to the discussion: Paul Ryan Acted Immediately After 2008 Bush WH Meeting on Impending Economic Meltdown [View all]sad sally
(2,627 posts)before the STOCK Act was passed - wouldn't be above a little after hours trading, which happens every day.
After-hours markets function nearly identically to daytime trading, with the exception that there are no traders shouting on physical stock exchange floors. All transactions occur online via an ECN. Prices in after-market trading are set by the market, meaning price levels change based on what sellers and buyers agree upon at any given time.
Advantages
After-hours trading can provide insight into traders' reaction to news, press releases and official reports occurring after trading floors have closed. Watching how after-hours traders react to new information can give you a heads-up on what to expect when the majority of traders begin their day the next morning.
http://budgeting.thenest.com/after-hour-stock-trading-work-3330.html