After 30 Years, the King of ETFs Faces a Fight for Its Crown
(Bloomberg Businessweek) -- Few champions can stay on top forever—even the ones who virtually invent the game. On Jan. 29 the SPDR S&P 500 ETF Trust turns 30. With $375 billion in assets, it’s the biggest exchange-traded fund on the planet, but competition for the No. 1 spot is getting fierce.