ASIC: High-frequency trading taskforce—Key findings

Findings of the recent ASIC investigation into dark liquidity and high-frequency trading.

The high-frequency trading taskforce found that:

(a) some of the commonly held negative perceptions about high-frequency trading are not supported by our analysis of Australian markets—for example:

(i) that high-frequency traders exhibit unacceptably high order-to-trade ratios. Increases in order-to-trade ratios in Australia have been moderate compared with overseas markets, and other algorithmic traders operate at similar levels; and
(ii) that high-frequency traders’ holding times are often a matter of seconds and therefore that they make no contribution to deep, liquid markets. Our analysis shows that only 1.2% of high-frequency traders held positions for an average of two minutes or less, 18% for less than 10 minutes and 51% for less than 30 minutes; and

(b) there is some basis in fact for other perceptions (e.g. about high-frequency trading creating excessive noise and exhibiting predatory or ‘gaming’ behaviours), but other traders are also contributing to the problem.

Both [the HFT and Dark Pools] taskforces have found evidence of potential breaches of ASIC Market Integrity Rules and the Corporations Act 2001 (Corporations Act), and some matters have been referred to our Enforcement teams for investigation. We have also seen a change in behaviour as a result of our inquiries. For example:

(a) fundamental investors are asking more questions about where and how their orders are executed;
(b) there have been improvements to automated trading risk management controls; and
(c) at least one high-frequency trader has ceased trading in Australia.

The main problem with HFT is investor perceptions that they are paying more for stocks than they should be. HFT trading profits can only come out of investors pockets. While the ASX receives massive fees from HFT traders, the erosion of investor trust in fair pricing is too serious to ignore. Failure to address this could see investors migrate to other exchanges or platforms, especially if there is a transparent auction process where HFT traders are unable to intercede.