Good night NITE... Financial Stocks: Knight Capital shares sink after $440M loss Shares of Knight Capital Group Inc. tumble nearly 60% on Thursday after the market-making firm said it has suffered a $440 million pretax loss as a result of exiting its entire erroneous trading position that had been caused by a software glitch. http://www.marketwatch.com/news/story.asp?guid=%7B75358560-DCA0-11E1-8194-002128049AD6%7D&siteid=rss&rss=1 source: MarketWatch 02-August-2012 10:09:24