
📊 Money Management
This article presents three basic investment concepts along with key portfolio management ratios.
Three Basic Investment Concepts
- risk-free rate
- standard deviation
- max drawdown
(i) Risk-Free Rate
The 'Risk-Free Rate' refers to the annual return an investor can earn without taking any market risk. It is typically calculated based on the annualized interest from holding a three-month treasury bill. Any investment offering returns below this guaranteed rate is considered unacceptable.
- In the EU, the 3-month Euribor is used.
- In the USA, the 3-month US Treasury bill is used.
(ii) Standard Deviation
Standard deviation (SD) is a statistical measure estimating the amount of variation in a set of values. A low standard deviation indicates values close to the mean (expected value), while a high standard deviation shows larger variations from the mean.
Why is a low standard deviation important for a portfolio? Because it ensures that the portfolio’s positive performance is consistent over time and more likely to be repeated in the future.