Capital Asset Pricing Model (CAPM)
Capital asset pricing model (CAPM) indicates what should be the expected or required rate of return on risky assets like Shockwave Medical Inc. common stock.
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Rates of Return
Shockwave Medical Inc., monthly rates of return
| Shockwave Medical Inc. (SWAV) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | Date | PriceSWAV,t1 | DividendSWAV,t1 | RSWAV,t2 | PriceS&P 500,t | RS&P 500,t3 |
| Mar 31, 2019 | ||||||
| 1. | Apr 30, 2019 | |||||
| 2. | May 31, 2019 | |||||
| 3. | Jun 30, 2019 | |||||
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 56. | Nov 30, 2023 | |||||
| 57. | Dec 31, 2023 | |||||
| Average (R): | ||||||
| Standard deviation: | ||||||
| Shockwave Medical Inc. (SWAV) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | Date | PriceSWAV,t1 | DividendSWAV,t1 | RSWAV,t2 | PriceS&P 500,t | RS&P 500,t3 |
| Mar 31, 2019 | ||||||
| 1. | Apr 30, 2019 | |||||
| 2. | May 31, 2019 | |||||
| 3. | Jun 30, 2019 | |||||
| 4. | Jul 31, 2019 | |||||
| 5. | Aug 31, 2019 | |||||
| 6. | Sep 30, 2019 | |||||
| 7. | Oct 31, 2019 | |||||
| 8. | Nov 30, 2019 | |||||
| 9. | Dec 31, 2019 | |||||
| 10. | Jan 31, 2020 | |||||
| 11. | Feb 29, 2020 | |||||
| 12. | Mar 31, 2020 | |||||
| 13. | Apr 30, 2020 | |||||
| 14. | May 31, 2020 | |||||
| 15. | Jun 30, 2020 | |||||
| 16. | Jul 31, 2020 | |||||
| 17. | Aug 31, 2020 | |||||
| 18. | Sep 30, 2020 | |||||
| 19. | Oct 31, 2020 | |||||
| 20. | Nov 30, 2020 | |||||
| 21. | Dec 31, 2020 | |||||
| 22. | Jan 31, 2021 | |||||
| 23. | Feb 28, 2021 | |||||
| 24. | Mar 31, 2021 | |||||
| 25. | Apr 30, 2021 | |||||
| 26. | May 31, 2021 | |||||
| 27. | Jun 30, 2021 | |||||
| 28. | Jul 31, 2021 | |||||
| 29. | Aug 31, 2021 | |||||
| 30. | Sep 30, 2021 | |||||
| 31. | Oct 31, 2021 | |||||
| 32. | Nov 30, 2021 | |||||
| 33. | Dec 31, 2021 | |||||
| 34. | Jan 31, 2022 | |||||
| 35. | Feb 28, 2022 | |||||
| 36. | Mar 31, 2022 | |||||
| 37. | Apr 30, 2022 | |||||
| 38. | May 31, 2022 | |||||
| 39. | Jun 30, 2022 | |||||
| 40. | Jul 31, 2022 | |||||
| 41. | Aug 31, 2022 | |||||
| 42. | Sep 30, 2022 | |||||
| 43. | Oct 31, 2022 | |||||
| 44. | Nov 30, 2022 | |||||
| 45. | Dec 31, 2022 | |||||
| 46. | Jan 31, 2023 | |||||
| 47. | Feb 28, 2023 | |||||
| 48. | Mar 31, 2023 | |||||
| 49. | Apr 30, 2023 | |||||
| 50. | May 31, 2023 | |||||
| 51. | Jun 30, 2023 | |||||
| 52. | Jul 31, 2023 | |||||
| 53. | Aug 31, 2023 | |||||
| 54. | Sep 30, 2023 | |||||
| 55. | Oct 31, 2023 | |||||
| 56. | Nov 30, 2023 | |||||
| 57. | Dec 31, 2023 | |||||
| Average (R): | ||||||
| Standard deviation: | ||||||
Show all
1 Data in US$ per share of common stock, adjusted for splits and stock dividends.
2 Rate of return on common stock of SWAV during period t
3 Rate of return on S&P 500 (the market portfolio proxy) during period t
Variance and Covariance
Shockwave Medical Inc., calculation of variance and covariance of returns
| t | Date | RSWAV,t | RS&P 500,t | (RSWAV,t–RSWAV)2 | (RS&P 500,t–RS&P 500)2 | (RSWAV,t–RSWAV)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | Apr 30, 2019 | |||||
| 2. | May 31, 2019 | |||||
| 3. | Jun 30, 2019 | |||||
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 56. | Nov 30, 2023 | |||||
| 57. | Dec 31, 2023 | |||||
| Total (Σ): | ||||||
| t | Date | RSWAV,t | RS&P 500,t | (RSWAV,t–RSWAV)2 | (RS&P 500,t–RS&P 500)2 | (RSWAV,t–RSWAV)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | Apr 30, 2019 | |||||
| 2. | May 31, 2019 | |||||
| 3. | Jun 30, 2019 | |||||
| 4. | Jul 31, 2019 | |||||
| 5. | Aug 31, 2019 | |||||
| 6. | Sep 30, 2019 | |||||
| 7. | Oct 31, 2019 | |||||
| 8. | Nov 30, 2019 | |||||
| 9. | Dec 31, 2019 | |||||
| 10. | Jan 31, 2020 | |||||
| 11. | Feb 29, 2020 | |||||
| 12. | Mar 31, 2020 | |||||
| 13. | Apr 30, 2020 | |||||
| 14. | May 31, 2020 | |||||
| 15. | Jun 30, 2020 | |||||
| 16. | Jul 31, 2020 | |||||
| 17. | Aug 31, 2020 | |||||
| 18. | Sep 30, 2020 | |||||
| 19. | Oct 31, 2020 | |||||
| 20. | Nov 30, 2020 | |||||
| 21. | Dec 31, 2020 | |||||
| 22. | Jan 31, 2021 | |||||
| 23. | Feb 28, 2021 | |||||
| 24. | Mar 31, 2021 | |||||
| 25. | Apr 30, 2021 | |||||
| 26. | May 31, 2021 | |||||
| 27. | Jun 30, 2021 | |||||
| 28. | Jul 31, 2021 | |||||
| 29. | Aug 31, 2021 | |||||
| 30. | Sep 30, 2021 | |||||
| 31. | Oct 31, 2021 | |||||
| 32. | Nov 30, 2021 | |||||
| 33. | Dec 31, 2021 | |||||
| 34. | Jan 31, 2022 | |||||
| 35. | Feb 28, 2022 | |||||
| 36. | Mar 31, 2022 | |||||
| 37. | Apr 30, 2022 | |||||
| 38. | May 31, 2022 | |||||
| 39. | Jun 30, 2022 | |||||
| 40. | Jul 31, 2022 | |||||
| 41. | Aug 31, 2022 | |||||
| 42. | Sep 30, 2022 | |||||
| 43. | Oct 31, 2022 | |||||
| 44. | Nov 30, 2022 | |||||
| 45. | Dec 31, 2022 | |||||
| 46. | Jan 31, 2023 | |||||
| 47. | Feb 28, 2023 | |||||
| 48. | Mar 31, 2023 | |||||
| 49. | Apr 30, 2023 | |||||
| 50. | May 31, 2023 | |||||
| 51. | Jun 30, 2023 | |||||
| 52. | Jul 31, 2023 | |||||
| 53. | Aug 31, 2023 | |||||
| 54. | Sep 30, 2023 | |||||
| 55. | Oct 31, 2023 | |||||
| 56. | Nov 30, 2023 | |||||
| 57. | Dec 31, 2023 | |||||
| Total (Σ): | ||||||
Show all
VarianceSWAV = Σ(RSWAV,t–RSWAV)2 ÷ (57 – 1)
= ÷ (57 – 1)
=
VarianceS&P 500 = Σ(RS&P 500,t–RS&P 500)2 ÷ (57 – 1)
= ÷ (57 – 1)
=
CovarianceSWAV, S&P 500 = Σ(RSWAV,t–RSWAV)×(RS&P 500,t–RS&P 500) ÷ (57 – 1)
= ÷ (57 – 1)
=
Systematic Risk (β) Estimation
| VarianceSWAV | |
| VarianceS&P 500 | |
| CovarianceSWAV, S&P 500 | |
| Correlation coefficientSWAV, S&P 5001 | |
| βSWAV2 | |
| αSWAV3 |
Calculations
1 Correlation coefficientSWAV, S&P 500
= CovarianceSWAV, S&P 500 ÷ (Standard deviationSWAV × Standard deviationS&P 500)
= ÷ ( × )
=
2 βSWAV
= CovarianceSWAV, S&P 500 ÷ VarianceS&P 500
= ÷
=
3 αSWAV
= AverageSWAV – βSWAV × AverageS&P 500
= – ×
=
Expected Rate of Return
| Assumptions | ||
| Rate of return on LT Treasury Composite1 | RF | |
| Expected rate of return on market portfolio2 | E(RM) | |
| Systematic risk (β) of Shockwave Medical Inc. common stock | βSWAV | |
| Expected rate of return on Shockwave Medical Inc. common stock3 | E(RSWAV) | |
1 Unweighted average of bid yields on all outstanding fixed-coupon U.S. Treasury bonds neither due or callable in less than 10 years (risk-free rate of return proxy).
3 E(RSWAV) = RF + βSWAV [E(RM) – RF]
= + [ – ]
=