October 3 (SeeNews) - The Bulgarian Stock Exchange blue-chip SOFIX index closed 0.46% lower at 565.90 points on Wednesday, largely due to a decrease in the share price of car battery maker Monbat [BUL:5MB] and two banking sector members - Central Cooperative Bank (CCB) [BUL:4CF] and First Investment Bank (Fibank) [BUL:5F4].