My Two Cents
You are currently viewing the articles from Wednesday, November 23rd, 2011I think as traders are giving algorithmic trading programs too much credit. not a day goes by that a price move in the market is attributed to algo’s in some form or other as being responsible. This is especially true in quiet markets.
From my perspective, the algo’s add ZERO value. Strategies they use, whether it be quote stuffing (placing and then immediately cancelling orders), and layering (using hidden orders on one side and visible orders on the other) can potentially be used to manipulate prices. Not that stuff like that hasn’t always been possible, for example, I remember, years ago, clearly overhearing a broker receive instructions to sell 100 hard, as if he had 500 to sell, in an effort to drive prices lower.
But deterministic algorithmic trading such as VWAP (volume weighted average price) strategies can be front-run by other algorithms programmed to recognize such trading. Momentum ignition strategies, which essentially induce algorithms to compete with other algorithms, can push prices away from fundamental values. All of that is not good, since the market is no longer trading legitimately based upon its own merits. The result is people lose confidence from the user producers, for whom these markets were created. Seems to me we are seeing thinner markets as those users and producers avoid participation, thus harming the consumer and increasing volatility.
Anyway, those are some thoughts. What I don’t like is that this new approach is becoming the norm and creating an even increasingly thinner market. If it weren’t for convergence, they would appear even more worthless.
Just my 2 cents.


