Investor bullishness is the latest reason to be cautious about stocks

As investors become increasingly bullish on stocks, the market's warning signs are beginning to mount. Getting that late-1990s feeling The Goldman Sachs Group Inc. touts its warm and fuzzy side in an effort to recruit more of those high-maintenance Millennials. Hey, kid, take the weekend off So much for believing that financial advice can't be outsourced. The rise of online advice platforms could up the stress level for traditional advisers. Something else to worry about Wealthy families are sitting on piles of cash while waiting for interest rates to start rising, according to a Citi Private Bank survey. 39% in cash It would be hard to complain about the performance of any individual stock market sector this year, but when compared to the 25% gain by the S&P 500, much can be deduced from the spiking health care and consumer discretionary sectors. Sector performance simplified The private-equity industry's image problem could lead to increased regulation. PE needs PR