Are Markets Efficient? – Comments by Howard Marks

The estimated reading time for this post is 2 seconds


Note: Highlight to Tweet is enabled - Just highlight text to easily share the selected content to Twitter!

Howard Marks’ latest memo is a good read and discusses two very interesting topics 1) Role of luck in investing and 2) Are market efficient?  I’m not going to cover the role of luck in investing in this post, but I do believe luck plays a role and luck happens to people who position themselves to take advantage of it.

Market Efficiency

The theory of efficient markets makes sense, as the more freely and quickly information flows, the market can incorporate that information instantaneously always providing “accurate” pricing using the latest information.  However, humans still play a role in the market and humans can act irrational.  With the proliferation of technology and specialized investment firms, it is hard to find markets that seem deeply undervalued.  In today’s world, I think the markets are close to efficient, but sometimes a wrinkle causes the market to become inefficient.  The latest “wrinkle” occurred during the 2008 Great Recession when the market did not know how to price securities based on the current information.  It is during these times that value investors can make strong positive expected value bets.  However, most of the time markets do not present these types of opportunities.

I think that Marks’ remark that markets are not perfectly efficient is correct

Ultimately, there’s one reason why I think  no markets are perfectly efficient. Remember the assumptions underlying market efficiency: the participants have to be objective and unemotional. Regardless of the market, few investors pass that test.

I typically search for smaller companies that tend not to have as much analyst or institutional coverage because the market may not properly price the company on any given day.  The difference between the perceived value of a company and the market price will be largest among small (micro) companies and illiquid stocks.

General Disclaimer


The content contained in this blog represents the opinions of Ray Bonneau and RayBonneau.com. Ray Bonneau or persons posting on RayBonneau.com may hold either long or short positions in securities of various companies discussed in the blog. The commentary in this blog in no way constitutes a solicitation of business or investment advice. Readers should do their own homework and research when making investment decisions. The blog is intended solely for the entertainment of the reader, and the author.

Ray Bonneau is a participant/publisher in certain affiliate programs, including Amazon's Associates Program. Ray Bonneau will earn a small commission when a link to an affiliate site is clicked and a purchase is made. Affiliate programs help Ray Bonneau earn money to pay for this blog. Readers do not pay any extra money when clicking and using affiliate links on RayBonneau.com