MU is long from $21.77. As of this writing it is trading at $25.83. Those holding more than 25% may consider taking partial profits right here. The reason is that Samsung is ramping up DRAM production. DRAMs are the primary source of revenue for MU. DRAM is a commodity and prices can quickly get depressed.
The reason for holding the remaining, is that Wall Street is in love with this stock and may push the stock higher. Consider raising the protective stop on a 10% tranche in the zone of $24.23 to $24.38 and on the remaining $20.31 to $20.43.