Computers do not have psychology

In previous posts, I discuss equities investing or stocks using technical analysis (TA) to guess the market (see here, here, here and here). One common form of TA is known as Elliot Wave Principle (EWP) which depends on the collective psychology of investors charting price patterns over time into 5 distinctive waves. Over the last couple of years as I have dabbled in stock investing I have attempted to use EWP unsuccessfully with the New York Stock Exchange indexes. EWP came to my attention in the 2007-2009 crash as the price action followed the 5 waves. If it was true then, it must be true just a few months later? I have come to the conclusion that TA including EWP is not very effective at the current time in US stock markets because of how the market's composition has changed even in a brief period. It has to do with investor psychology (or lack of) and other outside influences.

I will give a brief history of how the US stock market changed over the last couple of decades. In 2001, markets began to trade stock in $0.01 increments in a process known as decimalization. Prior to this, all stocks were traded in fractions of (n/16) fractions of dollars. One advantage of fractions was the fact stock brokers with ask and bid prices at the increments. The slight (n/16) difference between the bid and ask price was the amount a stock broker could make buying and selling blocks of stocks for customers. The second innovation was the market switched to partially computerized operations in NYSE operations and is fully computerized in the NASDAQ market. In a nutshell, the pits with traders buying and selling stock are gone. The price action mostly occurs within a giant computer.

This "modernization" of the markets led to new kind of investment strategy, computerized trading at a quick speed. Basically, picture supercomputers directly connected to the exchange computers through a high speed Internet connection. Why would anyone do that? It is capitalizing on the same trade strategy as day traders. Buy and sell millions of stock simultaneously of just a few pennies of profit and the pennies turn into hundreds of thousands of dollars quickly. Add in the ability to trade put in quotes and cancel transactions before they are processed, one has quite a money making strategy. This process is known as high-frequency trading (HFT).

How does this influence TA? As stated before, TA is based upon investor psychology and the desire to hold stock over various lengths of time from hours up to years. Traders make buys and sells in a response to price movement creating the distinctive TA patterns. HFTs buy and sell stock within a matter of seconds. HFTs can even move millions of stocks down to milliseconds time frames! The HFT responds in a near instantaneous, mechanized manner to stock movement. The resulting trade psychology does not appear on the stock price charts. If HFTs were a small minority in the stock community, it would not directly influence TA. This was partially the case during the 2007-2009 crash with HFTs being ~40 % of the market's participants. EWP traced out the 5 distinctive waves. Currently, HFT represents ~60 % of all trades made on the US exchanges and can account for ~70 % on light trading days. Since this represent the majority of trades, the price action is not driven fully by investor psychology making TA less effective. I believe TA is useless over short periods of time.

One other factor distorting the markets are US government authorities. The government's stimulus and various Federal Reserve programs (TARP, TALF, POMO and etc) are putting money into investors hands in indiscriminate, unequal ways. The "free" money ends up being investing in the market in unorthodoxy manners.

The aha moment I had last night was using TA to avoid these unwanted outside influences into the markets. The only market to my knowledge that is too large ($100s billions per day) for authorities to significantly manipulate are foreign exchange markets (FX). These markets are based upon converting money into different currencies worldwide and HFTs would also have no interest in these markets. What FX markets can follow using TA are carry trades and whether investors are seeking risk or are seeking a safe haven for their investing.