I have extensive expertise in HFT, and work for a firm that does it now using 90% of my software.
Thanks for posting this. I agree with much with what he has to say from a philosophical standpoint. I agree with EVERYTHING he says about Dark Pools, and Quote Stuffing and other abusive tactics. I agree that HFT or any person in existance will back away from an asymmetric risk market, or even one where there is no liqduidity. I have been saying the same thing for 10 years.
Where we don't intersect is when he says that HFT doesn't provide liquidity. I think
some HFT does provide liquidity in quiet markets and it is in fact what has driven the bid ask spread down so tight [in equities and equity options]. Human beings cannot keep up with penny spreads so easily. There is a distinction between MMing and HFT. One is usually adding liquidity, the other is often taking it. But most of the action in markets is taking liquidity, since most intelligent MMing will hedge and therefore removes liquidity when doing so. Therefore, there MUST be some incentive to provide liquidity, and in every asset class there are those incentives. The collapse of the spread has reduced almost any incentive to make a market in equities or its derivatives.
Should HFT be forced to provide markets in
any situation? It is a silly question because while they may be in a regime of MMing, they are far more agile than that and there is no legal status to do so. As I have said before, EVEN the people that were LEGALLY bound to do so at the NYSE on Oct 1987 crash, did not even come close to meeting that obligation. Why would you force someone to stand in front of a freight train?
See, the whole point is that price is an illusion [or at least not a simple scalar but a slew of components unseen] as I have stated many times on this site, most notably in this thread:
http://www.elitetrader.com/vb/showthread.php?s=&threadid=180234&highlight=investing+catechism
It is all perception and pumping and dumping. However, price DIFFERENTIALS ARE REAL. If investors traded differentials instead of price, everyone on the planet would make a market even in bad situations. So if you could never enter a single order, but a spread, all this shit would go away. For example, if you could never try to invest on the price of GE, but on the price of GE vs the price of CAT, etc.
Look at the price of GM. At its current value, it assumes it will sell a trillion cars for 100 years. No one cares. But what about the price of TSLA vs GM? If you have enough people believing anything, you can create your own illusion. Look at Nazi Germany. The market is always right. Pffffffft