Micron (NASDAQ: MU) stock climbed over 4% after Apple CEO Tim Cook revealed that soaring memory chip costs are making consumer gadget price hikes completely unavoidable.

Micron (MU) stock jumps premarket ahead of its June 24 earnings. Will the chipmaker beat Wall Street's massive expectations?

Micron (NASDAQ: MU) stock climbed over 4% after Apple CEO Tim Cook revealed that soaring memory chip costs are making consumer gadget price hikes completely unavoidable.