Omar Marques | Sopa Images | Lightrocket | Getty ImagesEToro, a stock brokerage platform that's been ramping up in crypto, has priced its IPO at $52 a share, as the company prepares to test the market's appetite for new offerings.The Israel-based company raised nearly $310 million, selling nearly 6 million shares in a deal that values the business at about $4.2 billion. The company had planned to sell shares at $46 to $50 each. Another almost 6 million shares are being sold by existing investors...