Isn't all that analysis of the semiconductor industry baked into the prices already? Or are those professional analysts not doing their jobs?
I don't know where one goes to get really good insights on future trends. I've looked at some growth stocks that have boomed in the past and it seems to me that it was very hard to anticipate the next big thing. Like the Apple iPhone. I certainly didn't see that coming and I was right there in Silicon Valley (but not a consumer of such a product). I love Netflix but didn't take the plunge there either. And Amazon, it was always priced high and I'm a big consumer there but don't own the stock.
I think many foreign investors go for US growth stocks probably because they cannot find comparable opportunities in other developed markets like in Europe.
If I were looking for a growth stock I'd probably hunt in the midcaps.