As the pound swept to victory, strengthening by an average of 1.1% against the other ten most actively-traded currencies, the NZ dollar struggled valiantly to keep up. The Kiwi missed out by only a dozen ticks and took more than a cent off the US dollar, which shared last place with the Swiss franc and Japanese yen. The Kiwi's relatively strong performance and the downward move of the safe-haven franc and yen were almost entirely due to a relaxation in trade tensions between China and the States and, latterly, Trump's backtracking on his threat to rain missiles on Syria.
Sterling got lucky: the UK economic data were far from gleaming. It did get some help from an American bank FX analyst though: He pointed out that sterling had strengthened against the US dollar every April for the last 14 consecutive years.