發送短信 : Performance of smart beta ETFs in the U.S. market: 2009–2019

  ______    ______   _    _    _    _     ______  
 /_____//  /_   _// | \  / || | || | ||  /_____// 
 `____ `    -| ||-  |  \/  || | || | ||  `____ `  
 /___//     _| ||_  | .  . || | \\_/ ||  /___//   
 `__ `     /_____// |_|\/|_||  \____//   `__ `    
 /_//      `-----`  `-`  `-`    `---`    /_//     
 `-`                                     `-`