According to the diversity reports from linkedin, Facebook, and Google, Asian-Americans are greatly overrepresented in the tech industry. I don't remember the exact numbers, but it's something like 30-40% vs under 10% in the general population.

I don't really know, it may be because Asian American parents are more likely to encourage their children to go into technical careers. Still, a purely numerical statistic is nothing to allege discrimination over, no matter which groups are involved.