Sofia. Last week saw investors on BSE-Sofia focusing on shares of Chimimport (BGN 1.52-1.54 apiece), Central Cooperative Bank (BGN 1.01-1.02), Bulgartabac Holding (BGN 100-104) and Sopharma (BGN 3.90-3.91). Sopharma posted the biggest weekly gain of over 8%. The equities Petrol AD also were in the spotlights of investors in the past week, after a firm related to Corporate Commercial Bank acquired 50 million shares from the fuel distributor’s capital. Banker Weekly reads.