High Speed Trading?
Recently, there has been a bit of discussion about "high speed trading". Some people are quite upset about the fact that this type of trading is actually happening. However, competition and the chaotic nature of life and the market will limit the effect.
It is impossible for outlaw trader and have all producers to sell directly only to customers. There were those who have tried to outlaw traders, merchants, and middlemen and life fell apart. Any society will need traders who can bring in outside goods and services. Traders and middlemen have always pushed for faster and faster ways to trade.
The problems reported with high speed trading don't have anything to do with the speed of the trading. Instead, the claim is that some high speed traders are exploiting the lack of knowledge that some of their customers may have about pricing. The problem is not the high speed trading, but the violating of the trader's responsibilities to their clients.
The reports indicate that some of these high speed traders have made a lot of money through their trades. The amounts while in the billions, is still quite a small percentage when compared to the profits that value investors are making. Traders do not make the profits that investors do.
All trading firms are focused on optimizing trades. Any small advantage that one trading firm has is always only a short term advantage. Every other firm will work to level any advantage someone else has. Likewise, the large mutual fund companies are constantly working to make sure that the trading firms they use are not taking advantage of them. The constant effort by every trading partner to "tilt" the market in their own direction means that the market will be leveled over time. Any company currently making a lot of money by exploiting a price difference will lose that advantage quickly.
The deeper question is whether or not high speed trading is fundamentally taking advantage of other people. In every market, there is the need for someone who will put buyers and sellers together. Such people rarely make a lot of money for very long. They don't hold a stock long enough to make the serious money.
The chaotic nature of the stock market also works against the traders. Going forward, the traders will not be able to find the advantage they once had. Yet, they will continue to have the pressure to make the same profit. That will put them where the power of the chaotic nature will work on them. People who trade only once a month will make as much profit.
Do we need government to act? Typically, government action takes several years. Competitors and customers can make changes in weeks. The best thing that government can do is to mandate transparency. We can be sure that if a trading firm sees that they are losing millions to someone else, they will quickly invest the money needed to recoup that and deny the advantage the other has.