After Wall Street rallied to yet another record at the start of the week, caution was dominating the S&P 500 futures overnight. All eyes are on Federal Reserve chair Janet Yellen's testimony later today.
► Subscribe to FT.com here: http://on.ft.com/2eZZoLI
► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
For more video content from the Financial Times, visit http://www.FT.com/video
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes
