Micron Technology Inc. MU, -0.47% rose in the extended session Monday after the chip maker raised its outlook for the quarter and announced a new financial chief. Micron shares advanced 1.9% to $40.15 after hours, following a 3.5% drop during the regular session. For the fiscal second quarter, Micron estimates earnings of $2.70 to $2.75 a share on revenue of between $7.20 billion and $7.35 billion. That's up from the previous estimate of $2.51 to $2.65 a share on revenue of $6.8 billion to $7.2 billion. Analysts expect earnings of $2.58 a share on revenue of $7.02 billion. Separately, Micron announced that David Zinsner will become chief financial officer, effective Feb. 19, succeeding Ernie Maddock, who is retiring.