Matt Nadel, senior v.p. and equity derivative prop trader at Swiss Re in New York, has left the firm after just over a year. Nadel joined from JPMorgan with prop trading colleague Leonardo Mayer (DW, 5/2). Mayer referred calls to Alayna Tagariello, spokeswoman, who confirmed the departure, noting the insurer has made a handful of equity derivative hires this summer (DW, 7/29). Market officials who had spoken to Nadel said he will likely resurface in a similar role. Nadel could not be reached.