Investors poured cash into the $21 billion Technology Select Sector SPDR Fund, the largest exchange-traded fund globally tracking stocks of technology companies. Known by its ticker XLK, the fund has been a go-to bet for buyers looking for cheap and broad tech exposure, charging a low expense ratio of 13 basis points. The fund saw almost $616 million in inflows on Thursday, the most since December 2011, according to data compiled by Bloomberg. Read the original story from InvestmentNews.