News flash: Buying what Buffett buys makes you money
moneyrelations :: Nov.26.2007
Hello, stranger! New here? How about subscribing to my RSS feed? Thanks for visiting!
A couple of weeks ago, a study by two university professors was circulating in Warren Buffett land that buying whatever the ol’ man buys makes you money.
Egads, you don’t say!
Okay, I’ll turn off the sarcasm because it really is an interesting read. The new study is entitled, “Imitation is the Sincerest Form of Flattery: Warren Buffett and Berkshire Hathaway“.
Berkshire Hathaway had bested the market an incredible 28 out of 31 years. From 1976 to 2006, Berkshire outperformed the S&P 500 index by 14.65%. The study investigated if this achievement is due to luck, portfolio risk, or a “Buffett effect”.
The Efficient Market Theory suggests that given enough investors, a few people would surely beat the market all 31 years by sheer dumb luck. The professors showed that with Berkshire, this was due to skill.
What I took away was this nugget of information:
Efficient Market Theory does not claim that stock prices are correct at all times, it only states that stock prices are correct on average. At any point in time, stocks may be mispriced but one does not know whether they are underpriced or overpriced.
Also, we presume that Berkshire’s investment style is not risky since Buffett is a noted value investor. However, this study made a case that Berkshire is really a large-cap growth investor.
Finally, there’s the “Buffett effect” that given his name and reputation, whatever Buffett touches turns to gold. Well, would you believe that investors under-react to Berkshire investment disclosures?
The market also appears to under-react to the news of a Berkshire stock investment since a hypothetical portfolio that mimics Berkshire investments created the month after they are publicly disclosed earns positive abnormal returns of 14.26% per year.
A recent example would be the fact that when it was disclosed Berkshire had bought a stake in CarMax, the share price rose 7.5%, or $1.62 to $23.09 on Thursday, November 15. A little more than a week later, it closed this past Friday at $20.65.
It was later found that it wasn’t Buffett doing the buying but rather Berkshire subsidiary GEICO’s Lou Simpson (chief investment officer and no slouch himself). However, the study made note that it was the collective investment skill of Warren Buffett, Charles Munger, and Lou Simpson that made Berkshire a success.
Overall, it was a good read and I learned a lot from the report’s surprising discoveries. It will be interesting to know if other academics will dispute the number crunching.
Still, given Berkshire’s track record, buying whatever it discloses a month later might not be a bad idea.
In the news, Investing, Warren Buffett ::
4 Comments »
Did you enjoy the post?
Subscribe to Money Relations and the Comments as well.
Share in Social Media

Related Posts:





