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Risk and Returns: The Sharpe Ratio

Use pandas to calculate and compare profitability and risk of different investments using the Sharpe Ratio.

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Project Description

When you assess whether to invest in an asset, you want to look not only at how much money you could make but also at how much risk you are taking. The Sharpe Ratio, developed by Nobel Prize winner William Sharpe some 50 years ago, does precisely this: it compares the return of an investment to that of an alternative and relates the relative return to the risk of the investment, measured by the standard deviation of returns.

In this project, you will apply the Sharpe ratio to real financial data using pandas.

Project Tasks

  1. 1
    Meet Professor William Sharpe
  2. 2
    A first glance at the data
  3. 3
    Plot & summarize daily prices for Amazon and Facebook
  4. 4
    Visualize & summarize daily values for the S&P 500
  5. 5
    The inputs for the Sharpe Ratio: Starting with Daily Stock Returns
  6. 6
    Daily S&P 500 returns
  7. 7
    Calculating Excess Returns for Amazon and Facebook vs. S&P 500
  8. 8
    The Sharpe Ratio, Step 1: The Average Difference in Daily Returns Stocks vs S&P 500
  9. 9
    The Sharpe Ratio, Step 2: Standard Deviation of the Return Difference
  10. 10
    Putting it all together
  11. 11


Python Python


Applied Finance
Stefan Jansen HeadshotStefan Jansen

Founder & Lead Data Scientist at Applied Artificial Intelligence

Stefan is the Founder & Lead Data Scientist at Applied Artificial Intelligence. He has 15 years of experience in finance and investments, with a big focus on emerging markets.
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