Expectations had crept in that it might move by 50 basis points - even though most of the market was sceptical. When that failed to materialise, the currency shot higher.
ANZ Bank senior economist Sharon Zollner said the currency's rally appeared to be "counter-intuitive" but that it nevertheless was a repeat what happened when the Reserve Bank of Australia cut its rate by 25 bp to 1.50 per cent on August 2.
"[Wheeler] probably knew that this was the most likely outcome, but nevertheless concluded that this was the best strategy," Zollner said.
"He was not going to be bullied into cutting by more than he thought was justified."
ANZ and some other banks now expect to see two more 25 bp rate cuts, in November and early next year.
Fonterra, NZ's biggest exporter, has complained that the currency has played a part in its low farmgate milk price of $4.25 a kg of milksolids - so yesterday's rate cut and higher kiwi would have offered little relief, although borrowers' interest rate costs may come down a little.