A Crucial Investing Tip From Bill Gates

Bill Gates' annual letter covers a great many topics, from eradicating polio in Nigeria to improving K-12 education in the U.S., but does not touch on any hot stock tips. And why would it, with Gates more interested in investing in health and welfare than the next Apple? But, if you boil down the key theme throughout the letter, it reveals a lesson that every investor should apply -- but few currently do.

Take note
Just what is this lesson? Gates writes:

I have been struck again and again by how important measurement is to improving the human condition. You can achieve amazing progress if you set a clear goal and find a measure that will drive progress toward that goal. ... This may seem pretty basic, but it is amazing to me how often it is not done and how hard it is to get right.

In terms of investing, the questions this brings up include:

  • Do you actually measure your investment performance?
  • Do you measure it versus a benchmark?
  • Do you track how well your sold securities perform after you ditch them?
  • Do you note why you bought something?
  • Do you note what factors will make you sell something?

Keeping track of the decisions that influence to your investing performance is the only way you can know what thoughts and actions led to mistakes and what led to success. If you don't mark down the reasoning for each decision, you are likely to succumb to the multitude of biases that our brains love to use to make decisions simpler, no matter how wrong those decisions are. If you don't track your investing, you are likely to wildly take actions in an already wild market, making it more of a gamble than it need be.

A personal example
In early March last year, I bought shares of Amazon.com  (NASDAQ: AMZN  ) around $180, convinced that their dominance in a multitude of products and services would power it past its then market value of about $80 billion. After the share price jumped to roughly $230 following Amazon's first quarter of 2012, making the company worth over $100 billion, I sold the stock, but failed to note exactly why I sold it, beyond what I can remember about being frightened from its limitless P/E ratio.

Since then, Amazon's share price has risen 16%, more than double the market's return, and the company is valued at $120 billion. Beyond missing out on the market-beating return, I missed out on a chance to fully develop an investing lesson for myself by not noting exactly why I sold it. This opens me up to making the same mistake, and missing those higher investment returns again.

Like Gates' plan of "measuring results to get feedback and refine the approach continually" in order to cure the world of broad ills, the same plan makes sense for individual investors to cure them of their repeated mistakes. Will avoiding past mistakes mean that each market move you make will be golden? Of course not, but it can help mitigate the dramatic mistakes that weigh down your portfolio.

Extending the lesson
This same lesson doesn't just end at your own actions. Use it to evaluate the performance of the companies you invest in, as well. Is a company measuring the right metrics to outperform its peers? Several companies measure a variety of things not required by the SEC. For example, Groupon  (NASDAQ: GRPN  ) reports gross billings per average active customer. Since the third quarter of 2011, this figure has fallen from $189 to $149, but given Groupon's evolving business that has a new focus on physical goods, gross billings per customer might not be the best thing to measure with the different margins associated with the new segment.

Or, take Netflix (NASDAQ: NFLX  ) . Netflix reports both streaming subscriptions and DVD subscriptions, good things to track for the company, but with investments into new original content, like the reported $100 million for House of Cards, investors might want streaming figures from specific shows. While the company will be measuring such things internally, it might fear that releasing such figures would spook investors who might try to measure the relatively new medium, which drops an entire new season of programming at once, versus the traditional television broadcasting figures. Original content is a long-term investment that avoids licensing costs, so measuring upfront viewers might not capture the entire value as it can be streamed whenever a subscriber wants. However, traditional television's John Landgraf, president of FX Network, has often complained about Netflix's lack of streaming disclosure, saying, "They like the fact that they don't have to have a report card. If you want to be a better student, get a grade. Find out how you're doing."

It starts with measuring
Landgraf has the main idea, just as Gates: only through measurement can you improve. Netflix might internally measure streaming statistics, but it might be better for investors not to know the figures due to the market's stress on short-term results. That's up for investors to decide.

What investors can do for themselves, though, is improve through measuring their own actions. So take a note from Gates, and take notes on your progress.

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Read/Post Comments (9) | Recommend This Article (36)

Comments from our Foolish Readers

Help us keep this a respectfully Foolish area! This is a place for our readers to discuss, debate, and learn more about the Foolish investing topic you read about above. Help us keep it clean and safe. If you believe a comment is abusive or otherwise violates our Fool's Rules, please report it via the Report this Comment Report this Comment icon found on every comment.

  • Report this Comment On February 08, 2013, at 1:35 AM, strelna wrote:

    The fact that AMZN stock has gone up since you sold it does not, of itself, invalidate your sale decision. (That is not a comment on the company's merit, or otherwise.) Nor would it have validated your sale decision if it had gone down. However, you are right that why you sold it is important, in terms of judging logic in the future.

    The consensus about the merit of Japan as a worthy place for investment continued for years. No-one noticed valuations were ridiculous. The rise in prices justified every further investment and reinforced the consensus. Until finally they didn't!

    So far as Amazon goes, I think your decision to sell was valid. The jury is out. I sold half, and I don't understand the valuation of the other half. Put me down as confused.

  • Report this Comment On February 16, 2013, at 8:12 AM, cuchulainn3 wrote:

    Mr. Gates was, is, and always will be a schmuck. I'm disappointed in the Fool for giving him space.

  • Report this Comment On February 16, 2013, at 8:45 AM, ryanalexanderson wrote:

    > Mr. Gates was, is, and always will be a schmuck. I'm disappointed in the Fool for giving him space.

    Sorry to hear that the world's most philanthropic man doesn't measure up to your high standards, no matter what he does now or in the future.

  • Report this Comment On February 17, 2013, at 2:01 AM, Taratora wrote:

    If Al Capone had a chance to change and turn into philanthropy, would he have measured up to your standards? I am not saying Mr. Gates is a gangster but he is not a model I would follow.

    M$ and Bill Gates had used every dirty trick they could think of to crush any and all competitors -- DR-DOS, WordPerfect, Apple, Netscape, the list can be quite long.

    You pay hundreds of dollars for the crappy Windows software in order to run basic applications like text editor, spreadsheets, slide presentations, etc. -- thanks to the monopoly that Bill Gates had established you have little choice because there are hardly any alternatives. Well, if you have the courage you could try the perfectly legal free open software but that is different topic ...

  • Report this Comment On February 17, 2013, at 4:50 PM, ryanalexanderson wrote:

    I don't approve of his past. Never said I did. But for the sake of society, I think it would be a terrible thing if someone offers billions and billions of dollars to fix some of the world's toughest society problems and we all shrug and say 'meh - you still suck.'

    So, yes. If Al Capone had an epiphany and spent the rest of his life trying to atone for his mistakes, I would applaud him for his efforts. He's not even the best example of this - try Cecil Rhodes, who raped Africa before setting up the Rhodes scholarships that helped many Africans (and others) get into Oxford.

    After all, there are many unethical businessmen and gangsters who don't bother with such enlightenment.

  • Report this Comment On February 19, 2013, at 9:52 AM, uaku wrote:

    Its a good advice but anywhere if you fail to do your homework you would either get lucky or get burned its that simple.

    I bought VLO after much research at 27 and when it dropped to 16 I bought some more. my avarage price came around $22

    But when it hit $30 I ran out of courage to hold. So I sold it at 32. now its trading at 47.

    Do I feel bad sure I do but 45% return in a span of 1.2 years is not a bad return. There is nothing there to cry about.

    Live and learn.,

  • Report this Comment On February 21, 2013, at 6:57 AM, ncbamboos wrote:

    Missing the point ...wow!

    To focus for a moment on the subject of tracking & trending on our portfolio & decisions,

    what are the best tools & methods?

    Has this problem been resolved by users, where is my fool tool, foolishly vetted by our users?

  • Report this Comment On February 22, 2013, at 10:58 AM, rainphakir wrote:

    Yes, let's pull this topic back out of the weeds.

    The message is 'track your performance'.

    The Fool tool is - Write it down. This has been a Fool recommendation for years. Keep an investing journal.

    For a public example on TMF, see the HoHum's Rollercoaster board. HoHum writes his thoughts about his trades for all to see.

  • Report this Comment On February 22, 2013, at 12:37 PM, TMFTheDude wrote:

    Great article Dan. You really nailed something that's a critical component in becoming a successful investor.

    Thanks a ton for writing it. I really enjoyed the read.

    -Andrew

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