How cautious should investors be on the US?

Liz Ann Sonders, chief investment strategist at Charles Schwab, explores if US valuation measures could be leading investors to the wrong conclusions

US markets suffered their worst drop so far in 2015 earlier this month, as concerns continued to mount over Greece's exit from the euro.  The S&P 500 and Dow Jones each recorded their worst one-day drop since 9 October 2014 on 1 July, as the European Central Bank froze funding for Greece, forcing banks to close ahead of the country's referendum on bailout demands.  Following such short volatile movements, and coming just after markets hit record highs, it is not surprising the question of where US stock markets are heading in the near future is of great concern to investors, especiall...