Silicon Motion (SIMO) shares soared 6.4% in the last trading session to close at $89.08. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 9.2% gain over the past four weeks.Silicon Motion has expanded its SSD controller program engagements with PC OEMs and eMMC/UFS controllers for smartphones, automotive applications and IoT/smart devices. The company is supplementing this momentum with innovative launches of next-generation enter ...