** Sofina's SOF.BR shares are down 2%, trailing at the bottom of Belgium's BEL20 .BFX index, after the holding company's net asset value declined in H1
** H1 NAV stands at 9.8 billion euros, down from 10.3 billion a year ago
** Sofina's CEO blames currency headwinds for the drop, mainly dollar exposure
** Portfolio companies are doing rather well despite the U.S. weakness dampening NAV, says ING analyst Hans D'Haese
** "Most recent transactions point to increasing exposure to financials in Europe vs. the US," he says
** However, with the US dollar relatively flat so far, the FX impact is expected to be neutral in H2, says Degroof Petercam while reiterating its "hold" rating on the shares
** Sofina shares were up 17.9% this year as of Thursday's close
(Reporting by Gianluca Lo Nostro)
((gianluca.lonostro@thomsonreuters.com;))