BlackRock Global Chief Investment StrategistWei Lisays she is still optimistic about the artificial intelligence trade as investors await Nvidia's quarterly earnings report. "Scarcity sellers are doing quote a bit better than scarcity buyers and Nvidia is a scarcity seller," Litells Bloomberg Television. "You look at some of the price increases that we have been talking about, and it really does show that they have earnings pricing power, earnings momentum," she adds. (Source: Bloomberg)