Investment Analysts’ upgrades for Friday, June 3rd: ABC-Mart,Inc. (OTCMKTS:AMKYF) was upgraded by analysts at Daiwa Capital Markets from a neutral rating to an outperform rating. Brenntag (OTCMKTS:BNTGY) was upgraded by analysts at Baader Bank to a buy rating. Ciena (NYSE:CIEN) was upgraded by analysts at B. Riley from a neutral rating to a buy rating. […]