Market Inefficiencies: Exploring Examples, Trading Strategies, Edges, and Opportunities in Stocks
Is it possible to find market inefficiencies when trading or investing? Yes, it’s possible to find inefficiencies in the markets. However, if you want to consistently make money in the stock markets, you need to understand how the markets work. Are you the prey or the predator? Are you street smart or academic smart?
Inefficiencies are rare and require backtesting, knowledge, and labor-intensive work. In this article, we discuss what market inefficiency is, how you exploit inefficiencies, and we discuss which markets are most efficient and inefficient. We end the article by suggesting how you go about looking for inefficiencies.
What are the three forms of market efficiency?
The efficient-market theory asserts that there is no way to gain superior performance (that is, extra returns) for a given level of risk. Unfortunately, according to academics, the only way to gain an extra return is to take on more risk.
There are three forms of market inefficiency:
Weak Form
The weak form states that all prices have discounted past data and thus technical analysis is futile. However, fundamental analysis works under a weak form of efficiency.
Semi-Strong Form
The semi-strong form states that all public information is reflected in the prices, and thus both technical and fundamental analysis is a waste of time and will not work.