Blue-chip lenders fell most among constituents of the main SOFIX index of the Bulgarian Stock Exchange on Tuesday, as trade in shares in Bulgarian Real Estate Fund REIT (BREF) [BUL:5BU] formed 63% of the total regulated market turnover. First Investment Bank [BUL:5F4] lost 4.43% to 3.67 levs in a limited trading volume of just 80 shares. First Investment Bank shares last traded on October 5, when they gained 2.95%. Central Cooperative Bank [BUL:4CF] posted the second sharpest decline, of 1.42% to 1.735 levs, in their first trade since October 3. A total of 38,170 shares in the lender changed hands in 39 deals. BREF REIT was the most traded blue chip, as four deals in its shares generated a turnover of 617,930 levs. Just over 320,000 shares in the REIT changed hands on Tuesday - the largest single-day trading volume in BREF REIT shares since October 24, 2017.Total trading turnover on the Sofia bourse regulated market edged down to 1 million levs ($586,300/511,300 euro) on Tuesday from 1.2 million levs on Monday.