Which impact do mayor indices have on currency pairs or gold if they open with a gap, that means much lower or higher?
You can see Dow as risk - if the markets see less risk, the Dow and AUD go up, the JPY goes down. It used to be said that gold would also go down, though there is not recent evidence this is still true.
But I’m not saying you can use these general and vague tendencies on an intra-day feature like an opening gap on a currency pair, there are other long-term and short-term variables involved too.