The GBP was rallying last week as was the strongest currency, this week it's strength has been surpassed by the NZD. It is still strong along with AUD and CAD. There are no real fundamentals supporting this strength though, just broad-based optimism. Along with the comments mentioned above, last week, Chief economist Andy Haldane, was predicting a V-shaped recovery for the UK. The GBP is now a risk currency, so it could also be rising just based on the switch to risk in the markets. With the Yen, USD, CHF and EUR all performing much weaker than risk currencies at the moment, I predict GBP/USD GBP/JPY will gain but in regards to GBP/AUD, the AUD will outweigh the GBP to send this back to towards its long term downward trend.