Analysts at Wellington's Woodward Partners have suggested Xero abandon its expensive strategy of chasing growth in the United States and instead focus on consolidating its position in New Zealand, Australia and Britain.
But the online accounting software developer's chief executive, Rod Drury, says the idea makes no sense and the company remains confident it can crack the US market.
Xero shares have fallen around 17 per cent since the firm released numbers last week showing US customer growth had been slower in the six months to September 30 than analysts had been expecting.
It added 4000 clients there during the period, taking the total number of US customers to 22,000.
In a research note, Woodward Partners analysts Nick Lewis and Cahn McKenzie said the additional cost of Xero's plan to take on 500 new staff over the next 12 months could mean its cash reserves - now $171 million - could be wiped out by early 2016.