The pair reached a high of 0.7581 today, now trading at 0.7579

When you look at the hourly chart, you'll get a clearer picture of the pair encountering some topside resistance.

Yesterday, the AUD was the best performer but its gains were capped by the 50.0 retracement level at 0.7578 as shown above. The current run up today is stalling at the same level as well - after breaking through the 200-hour MA.

If buyers are to seize control on the pair in a move towards 0.7600 and above, this is a level that they must break through. As Mike pointed out here, offers between 80-00 level is the next hurdle.