BlackRock CIO of Global Fixed Income Rick Rieder says that he sees a "productivity revolution" in US, calling it "an ethos around companies growing their business and seeing how you can operate without that much employment," while speaking exclusively with Bloomberg News' Dani Burger and Michael McKee on Open Interest. Rieder also cautioned against a potential rate hike by the Fed and said that all markets are reflecting large supply from the AI hyperscalers.