Semiconductor stocks tend to move in powerful cycles, often swinging between boom and bust as demand for chips rises and falls. When the cycle turns higher, earnings momentum and analyst upgrades can quickly follow, drawing investors back into the space ahead of key catalysts like earnings reports. That setup is forming right now for Micron Technology (MU). The memory chip maker is back in focus ahead of earnings, scheduled for Dec. 17, after Stifel sharply raised its price target. The investment bank say ...