SOFIA (Bulgaria), July 29 (SeeNews) -Â The Bulgarian Stock Exchange (BSE) [BUL:BSO], which operates the country's sole functioning stock exchange, said that its standalone net profit rose to 1.8 million levs ($1.1 million/920,000 euro) in the first half of 2020 from 1.5 million levs in the same period of 2019.