Xero's share price has soared since it raised $180 million last year to fund United States growth and Drury said part of the strategy when raising those funds was to make sure the company had plenty of cash "in case the market conditions changed".
"So that means we don't have to worry about having enough cash and all those sorts of things, we're in the fortunate position of just continuing to drive our business. In fact, in the short term the positive thing is it makes it harder for anyone else to get funded," Drury said.
"Share prices go up, they go down. We try not to get too excited when they go up and try not to get too excited when they go down," he said.
The Xero co-founder was very comfortable with how the company was tracking in the US, where it had 18,000 customers as at March 31.
"We have been in this business for the 8 years now, haven't really put a foot wrong and delivered on all of our promises so we feel very comfortable," he said.
"Our advice to shareholders, as we keep saying to them, is stick the stock in the bottom drawer for 5 years and let's see where we're at," he said.
Additional reporting: AP