Six years after TPG Funds and Silver Lake Funds took the debt-ridden firm private for $5 billion, Sabre today debuted on the Nasdaq stock exchange. It priced its shares at $16 — below its expected $18 to $20 range - raising $627 million at a $3.93 billion valuation. Despite five consecutive years of annual losses, Sabre is bullish on its future prospects. “We’re feeling very good indeed,” Rick Simonson, Sabre’s chief financial officer, told VentureBeat this morning. Sabre transacts over $100 billion between travel suppliers and buyers each year - more than eBay or Amazon handles annually, Simonson noted. And if the company considered its cloud software business a separate company, it would be second in value only to Salesforce, Simonson asserted. Get the full story at VentureBeat