Blackrock headquarters in New York. The world’s biggest asset manager is “turning up the risk dial” by doubling down on US equities and artificial intelligence exposure across its $185 billion model-portfolio platform, according to an investment outlook viewed by Bloomberg. Most Read from Bloomberg Best-in-class US earnings performance has BlackRock Inc. upping its exposure to US stocks at the expense of international developed stocks in its model suite, the outlook showed. After the changes, the portfol ...