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Batting Average

Batting Average

What Is Batting Average?

An investment manager's "batting average" is a statistical technique used to measure a manager's ability to meet or beat a index. A batting average is calculated by separating the number of days (or months, quarters, and so forth) in which the manager beats or matches the index by the total number of days (or months, quarters, and so on) in the period of inquiry and duplicating that factor by 100.

The higher the batting average, the better. The highest number conceivable average would be 100%, meaning the manager outperformed the benchmark each and every period. Interestingly, a batting average of 0% means the manager not even once outperformed their benchmark.

Understanding the Batting Average

A investment manager who outperforms the market in 15 out of a potential 30 days would have a statistical batting average of half. The more drawn out the period taken in the sample size, the more statistically significant the measure becomes. Numerous analysts utilize this simple calculation in their more extensive evaluations of individual investment managers.

The term begins from baseball, where the batting average addresses the percentage of a player's hits to at bats. While a season batting average of .300 (30%) or higher is viewed as a great accomplishment in baseball, the equivalent can't said for contribute. A batting average of half is utilized as a base threshold for measuring investment achievement.

Batting Average versus Data Ratio (IR)

The information ratio (IR) is a comparative measure of the achievement (or disappointment) of money managers. The IR measures portfolio returns past the returns of the benchmark compared to the volatility of those returns. The IR not just measures the investment manager's ability to produce high returns relative to the benchmark however it additionally endeavors to recognize the manager's performance consistency.

The calculation incorporates a tracking error that shows how reliably the manager can accomplish portfolio returns that track the index. A low tracking blunder means the manager reliably beats the index performance, while a high tracking mistake flags the manager's returns are more unstable and not predictably beating the benchmark.

Nonetheless, the IR doesn't effortlessly string together a series of triumphs or disappointments, which are useful while evaluating last investment results. The batting average defeats this shortcoming by replying: Does an investment manager win or lose most investment wagers?

The data ratio and the batting average are two ordinarily quoted measures of investment achievement, however these measures have shortcomings. The IR contains no data about higher minutes, and the batting average contains just directional data.

Limitations of Batting Average

All the more explicitly, the batting average experiences two primary limitations. First, the batting average spotlights just on returns and doesn't think about the level of risk taken by a manager in achieving returns.

Second, the batting average doesn't factor in that frame of mind of any likely outperformance. A manager could outperform the benchmark by, express, 0.1% for a long time, yet in the 11th month fall short of the benchmark by 3.50%. In such a case the batting average would be 90.90%, yet the manager would have emphatically [underperformed](/fail to meet expectations) their benchmark.

Popular investor Warren Buffet is partial to utilizing baseball relationships while looking at investing and alerts investors not to swing at each pitch (that is, investment), however rather center around investing inside your circle of capability, a concept he first depicted in his 1996 shareholder letter .

Special Considerations

Over the long run other baseball references have advanced into the world of investing. In his book, One Up on Wall Street, unbelievable fund manager Peter Lynch presents the term tenbagger, which alludes to an investment that returns ten times its original purchase price or can possibly do as such. An eager baseball fan, Lynch thought of the phrase since "pack" is baseball shoptalk for "base." To score a tenbagger resembles hitting two grand slams and a double, or the investing equivalent of piling up an exceptionally great gain.


  • In investing, batting average alludes to a statistical method used to measure an investment manager's ability to meet or beat the returns of a benchmark index.
  • By and large, for investment managers to be considered fruitful, they would have to accomplish a base threshold batting average of half.
  • One disservice of depending on batting average is that it centers just around returns and doesn't think about the level of risk taken by a manager to accomplish those returns.
  • The data ratio (IR) is a comparative measure of a money manager's prosperity that measures portfolio returns past the returns of the benchmark compared to the volatility of those returns.