ASE Technology (ASX) reported unaudited net revenue Friday of 61.58 billion New Taiwan dollars ($1.94 billion) for March, up 18% sequentially and 15% from a year ago.

In Q1, net sales came in at NT$173.66 billion, a 2.4% month-over-month drop, but a surge of almost 17% from a year earlier.

Analysts polled by FactSet expected NT$167.63 billion.

The company's shares were up 1.5% in premarket activity.