Micron stock surged 839% in a year, but analysts warn of cracks

Micron stock (NASDAQ: MU) has delivered one of the most extraordinary rallies in semiconductor history, but Wall Street is becoming increasingly cautious about how much future growth is already reflected in the share price. The memory-chip maker has become one of the biggest winners of the artificial intelligence boom, with its shares up about 840% over the past year and its market value crossing the $1 trillion mark.