As of 2016-02-19 (updates daily):
The Stock Market is Modestly Overvalued.
As of today, the Total Market Index is at $ 19618.2 billion, which is about 108.6% of the last reported GDP. The US stock market is positioned for an average annualized return of 1.7%, estimated from the historical valuations of the stock market. This includes the returns from the dividends, currently yielding at 2.21%.