Nine Mile

Nine Mile Financial fights a home game most Australians have ceded to foreigners. It bills itself as the only domestically owned HFT firm in Australia, going up against Susquehanna, Optiver, IMC, and Citadel Securities on their own turf. Founder Morgan Potter talks openly about racing those rivals down to nanoseconds and picoseconds.

The core business is ETF market making across the Asia Pacific, paired with a separate high-frequency futures desk. From its Martin Place base in Sydney the firm has spread fast: an HKEX market-making approval in 2025, a Korea launch in 2026, and Tokyo Stock Exchange recognition for its ETF and CONNEQTOR quoting. Its bench is stocked with alumni of Flow Traders, Tibra, Macquarie, and Goldman Sachs. Built on a modern low-latency stack rather than legacy pit infrastructure, it is one of the few local shops willing to quote against the global giants.