China's renminbi devaluation saw big losses for some blue chip stocks, but neither that nor Greece could knock the S&P 500 out of its trading range. James Mackintosh, investment editor, says US equities have been stuck in a tight 6-month range and wonders if this signals complacency.<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
