Flow Traders said it received regulatory approval to trade directly with big U.S. investors and companies.
PureFunds CEO Andrew Chanin discusses what differentiates his firm's novel offerings from the rest of the industry.
As the recent skirmishes show, both firms see room for more large players in the ETF market.
Speculation is mounting that Fed officials, in a statement scheduled for release on Sept. 21, will signal that higher U.S. interest rates are on the way.
Assets in fixed-income ETFs swelled to A$2.32 billion ($1.7 billion) at the end of August.