MarketAxess Holdings Inc. (MKTX) recently announced an expansion of its 10-year-long partnership with BlackRock. Under this expanded partnership, MKTX’s credit trading protocols, data and pricing will be integrated into BlackRock’s Aladdin order execution management system (OEMS).The partnership between MKTX and BlackRock in MarketAxess analytics and Open trading dates back to 2013. The expansion of this partnership bodes well for MKTX as it enhances existing offerings for common clients of both companies. ...