September 30 (SeeNews) - Half of the four main Bulgarian Stock Exchange (BSE) indices ended the week in green territory, with the blue-chip SOFIX climbing 0.32%% to 587.15 points on the back of gains in energy and insurance group Eurohold Bulgaria [BUL:EUBG] and First Investment Bank [BUL:FIB], or Fibank, bourse data showed.