NASDAQ / ASX query.

I had no intent to start new thread but couldn't figure out where to place this. There's a lot of chat about ASX shares being purchased and heading abroad. Just was looking for clarification on this.
Is my understanding correct that US companies are buying ASX stock and parking them in holdings / trusts? If so, could someone explain how that affects our ASX holdings. Or of course, correct me.

I'm usually good at putting your points of view together, to get a grander perspective but with this one, I'm missing something.

Cheers in advance.

Micko.