The Sohn Investment Conference opens Monday to a wave of hedge fund industry titans sharing what they hope are money-making ideas. For 23 years, fund bigwigs have taken to the New York stage to reveal to peers their highest-conviction trades, just as they will do again today. But after last year’s crowds dispersed and the spotlight faded, did those wagers, in fact, win? To follow our by-the-minute coverage of today’s event, head to our Top Live blog here starting at noon Eastern time. His call: Short oilfield-service company Core Laboratories NV.