The Sharpe ratio is like a report card that tells us how well someone did at making money compared to how much risk they took.
Imagine you and your friend both tried to save up for a new toy by selling lemonade. You sold 10 cups and made $5, while your friend only sold 3 cups but still made $3. At first glance, it looks like your friend did better, but maybe that’s because they had fewer customers to worry about. The Sharpe ratio helps us see who really did the best job by considering how much money they made and how many things could go wrong (like a sudden rainstorm).
What does "risk" mean here?
How the Sharpe ratio works
The Sharpe ratio divides how much money you made by how much risk you took. A higher number means you did well without taking too many chances, like getting an A on your report card without studying all night.
Examples
- A baker calculates how many cakes they can sell for every hour of work, even if some days are slower than others.
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See also
- How do credit scores work and how are they calculated?
- How do credit scores work and why are they important?
- How do lotteries work and what are their economic impacts?
- How Does a Traditional Market Differ from a Modern Stock Exchange?
- How Does a Stock Market Crash Actually Happen?