High Frequency Trading

While still apalled at what the investment banks have done to our economy and our society,I am not at this point hysterical, and present the article below simply because it is informative.


DK Matai.Chairman: mi2g, ATCA, The Philanthropia
Posted: May 29, 2010 06:39 PM BIO Become a Fan Get Email Alerts Bloggers' Index .



The Achilles Heel of Markets?

It has been the worst May for stocks since 1940. The last time May was this bad, neither had Pearl Harbour been bombed forcing the US to enter World War II, nor had the US recovered from The Great Depression. Although suppressed for much of the global markets recovery that began in March 2009, volatility has sprung back with a vengeance in May. On May 21st the "fear index" -- the "volatility index" of the Chicago Board of Options Exchange, also known as VIX -- rose to a 12 month high. May 6th, the day of the "flash crash," saw the biggest intraday point drop ever in the Dow Jones Industrial Average. The last-hour market swings, as the European debt crisis injects more uncertainty, are also increasing with every passing day. This volatility reflects a lack of buying interest among long term investors and an intra-day focus for high-frequency traders in the absence of a clear market direction.


High Frequency Trading
Super Arbitrage

The role of high-frequency trading is gathering pace, commanding a bigger and bigger share of financial markets' activity worldwide in equities, bonds, commodities, futures and currencies. High-frequency traders are behaving like computer jockeys. They run complex trading algorithmic software on superfast computers and search the markets for tiny price differentials so that they can carry out super arbitrage. By trading hundreds of millions or even a billion units a day at lightning speed, high-frequency traders pick up fractional pennies each time. The more volatile the market, the easier it is for them to make money jumping in and out of assets across multiple exchanges. High-frequency traders are really just trying to skim the bid to offer spread on a trade. It may only be as low as $0.01 on many trades but, if one does it for 100,000,000 -- 100 million -- units that's over one million dollars a day of profit! High-frequency trading firms rarely go home with a position if they can help it because they make money by maximising transactional volume and minimising risk.

What Does Volatility Mean?

Markets become volatile when liquidity dries up. This means people can't trade stocks at a fair price, when they want. High-frequency traders thrive off volatility, because when liquidity is in short supply, it becomes very profitable for them to provide it. On days with big movements, in the realm of triple digits, high-frequency traders can make a lot of money via this super arbitrage. As a result, May has proved to be the biggest gold mine for high-frequency trading firms since the crash of late 2008 and early 2009. While many long-term investors lost their shirts during The Great Unwind (2007-?) and The Great Reset (2008-?), the high-frequency traders posted huge profits, as they are doing now.

Shadow Markets

In their defence, high-frequency traders say that because their intense trading provides liquidity, they help markets run smoothly, improving the environment for all investors. They say their actions make the markets more functional and fair to typical investors. Given that the high-frequency traders and broker dealers have a symbiotic relationship, they are both actively masquerading as liquidity providers when in fact they are normally liquidity takers, the knowledge transfer of the transactional information being all important. It is clear that high-frequency trading serves no larger purpose. It does not raise capital for companies, create jobs or stimulate innovations in the broader economy. The trades remain completely divorced from underlying economic fundamentals. The high-frequency traders know little or nothing about the companies their computers are feverishly buying and selling. If one combines the speed at which they operate, the outsourcing of decision making to computer algorithms, and an almost complete lack of regulation, this shadow market can fuel and exaggerate volatility.

Anti-Value Investing

High-frequency traders have been branded as the new "black hats" of high finance. Their computer-driven methods, which now account for upwards of two thirds of all US equity volume, are proliferating. To a large degree, fundamental investment strategies -- such as buying and selling stocks based on a company's long term performance -- have taken a back seat to high-frequency trading algorithms hunting for inefficiencies in daily pricing and super arbitrage opportunities.

Reach, Richness and Speed

High-frequency trading has been spreading from the US and Canadian stock markets into new geographies -- Europe, Asia and Latin America -- and all asset classes including equities, bonds, commodities, futures and currencies. Assuming the new financial regulatory reform bill forces over-the-counter derivatives on to exchanges, high-frequency traders will no doubt trade them too. Every day, things are getting faster in the world of high finance and trading. Four years ago, executing a trade in a millisecond -- one thousandth of a second -- was considered fast; now the top high-frequency trading firms and broker dealers are trading in microseconds. That's one millionth of a second.

Conclusion

Law-makers and regulators are right to get nervous. Senator Ted Kaufman -- Democrat from Delaware -- who understands the risk of high-frequency trading, or HFT, says, "I'm afraid that we're sowing the seeds of the next financial crash." He has called for the Securities and Exchange Commission (SEC) to investigate high-frequency traders and the impact they have had on the broad markets.

In the aftermath of the May 6th "flash crash", the Securities and Exchange Commission (SEC) has recently voted to propose rules that would give the agency and securities exchanges more timely information about high-frequency trades so that they can better oversee the markets. The proposal requires exchanges and broker dealers that trade on the exchanges to provide detailed information about quotes, orders and trades to what would be a newly created central repository.

Whilst the creation of a central repository may be helpful, it is unclear how this could prevent a "flash crash" caused by high-frequency trades in the future. Human real time is measured and understood in minutes and seconds, whereas the machines are trading in millionths of seconds. In order to be able to understand what happens in a future "flash crash" the regulators would have to play the data from a central repository in slow motion over days or even weeks! What good is it to drive an open-top car at high speed with one's eyes glued to the rear view mirror?

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Previously on The Financial Fix