Fantex Inc (OTCMKTS:ANFRL) is finally going to hold its first IPO, this time touting San Francisco 49ers tight end Vernon Davis, reports William Alden for The New York Times. The company is offering shares meant to represent a share of Davis’ future income, though the stock carries a number of risks that normal equities don’t. Previous Fantex IPO prevented by injury Fantex Inc (OTCMKTS:ANFRL) is selling 421,000 shares at $10 per share according to the company’s press release, and the total value of those shares will be equal 10% of Davis’ lifetime earnings, so the football player needs to earn…