Stocks Are Moving In Lock Step

Wall Street Journal article on how macro forces began moving stocks in a big way since 2008 making it harder for stock pickers. "A host of other factors is contributing to the macro trend. The rise of exchange-traded funds, which typically track broad market indexes or benchmarks, has made it easier for investors to make broad bets on commodities, bonds and currencies. Such funds now account for 30% of daily stock-trading volume" Link to WSJ article