資本資産価格設定モデル (CAPM)
資本資産価格モデル(CAPM)は、 Merck普通株式などのリスク資産の期待収益率または必要な収益率を示します。
収益率
Merck & Co. Inc.、月間収益率
| Merck & Co. Inc. (MRK) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | 日付 | 価格MRK,t1 | 配当MRK,t1 | RMRK,t2 | 価格S&P 500,t | RS&P 500,t3 |
| 2021/01/31 | $77.07 | 3,714.24 | ||||
| 1. | 2021/02/28 | $72.62 | -5.77% | 3,811.15 | 2.61% | |
| 2. | 2021/03/31 | $77.09 | $0.65 | 7.05% | 3,972.89 | 4.24% |
| 3. | 2021/04/30 | $74.50 | -3.36% | 4,181.17 | 5.24% | |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 58. | 2025/11/30 | $104.83 | 21.92% | 6,849.09 | 0.13% | |
| 59. | 2025/12/31 | $105.26 | $0.85 | 1.22% | 6,845.50 | -0.05% |
| 平均 (R): | 1.08% | 1.14% | ||||
| 標準偏差： | 6.75% | 4.37% | ||||
| Merck & Co. Inc. (MRK) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | 日付 | 価格MRK,t1 | 配当MRK,t1 | RMRK,t2 | 価格S&P 500,t | RS&P 500,t3 |
| 2021/01/31 | $77.07 | 3,714.24 | ||||
| 1. | 2021/02/28 | $72.62 | -5.77% | 3,811.15 | 2.61% | |
| 2. | 2021/03/31 | $77.09 | $0.65 | 7.05% | 3,972.89 | 4.24% |
| 3. | 2021/04/30 | $74.50 | -3.36% | 4,181.17 | 5.24% | |
| 4. | 2021/05/31 | $75.89 | 1.87% | 4,204.11 | 0.55% | |
| 5. | 2021/06/30 | $77.77 | $3.75 | 7.42% | 4,297.50 | 2.22% |
| 6. | 2021/07/31 | $76.87 | -1.16% | 4,395.26 | 2.27% | |
| 7. | 2021/08/31 | $76.29 | -0.75% | 4,522.68 | 2.90% | |
| 8. | 2021/09/30 | $75.11 | $0.65 | -0.69% | 4,307.54 | -4.76% |
| 9. | 2021/10/31 | $88.05 | 17.23% | 4,605.38 | 6.91% | |
| 10. | 2021/11/30 | $74.91 | -14.92% | 4,567.00 | -0.83% | |
| 11. | 2021/12/31 | $76.64 | $0.69 | 3.23% | 4,766.18 | 4.36% |
| 12. | 2022/01/31 | $81.48 | 6.32% | 4,515.55 | -5.26% | |
| 13. | 2022/02/28 | $76.58 | -6.01% | 4,373.94 | -3.14% | |
| 14. | 2022/03/31 | $82.05 | $0.69 | 8.04% | 4,530.41 | 3.58% |
| 15. | 2022/04/30 | $88.69 | 8.09% | 4,131.93 | -8.80% | |
| 16. | 2022/05/31 | $92.03 | 3.77% | 4,132.15 | 0.01% | |
| 17. | 2022/06/30 | $91.17 | $0.69 | -0.18% | 3,785.38 | -8.39% |
| 18. | 2022/07/31 | $89.34 | -2.01% | 4,130.29 | 9.11% | |
| 19. | 2022/08/31 | $85.36 | -4.45% | 3,955.00 | -4.24% | |
| 20. | 2022/09/30 | $86.12 | $0.69 | 1.70% | 3,585.62 | -9.34% |
| 21. | 2022/10/31 | $101.20 | 17.51% | 3,871.98 | 7.99% | |
| 22. | 2022/11/30 | $110.12 | 8.81% | 4,080.11 | 5.38% | |
| 23. | 2022/12/31 | $110.95 | $0.73 | 1.42% | 3,839.50 | -5.90% |
| 24. | 2023/01/31 | $107.41 | -3.19% | 4,076.60 | 6.18% | |
| 25. | 2023/02/28 | $106.24 | -1.09% | 3,970.15 | -2.61% | |
| 26. | 2023/03/31 | $106.39 | $0.73 | 0.83% | 4,109.31 | 3.51% |
| 27. | 2023/04/30 | $115.47 | 8.53% | 4,169.48 | 1.46% | |
| 28. | 2023/05/31 | $110.41 | -4.38% | 4,179.83 | 0.25% | |
| 29. | 2023/06/30 | $115.39 | $0.73 | 5.17% | 4,376.86 | 4.71% |
| 30. | 2023/07/31 | $106.65 | -7.57% | 4,588.96 | 4.85% | |
| 31. | 2023/08/31 | $108.98 | 2.18% | 4,507.66 | -1.77% | |
| 32. | 2023/09/30 | $102.95 | $0.73 | -4.86% | 4,288.05 | -4.87% |
| 33. | 2023/10/31 | $102.70 | -0.24% | 4,193.80 | -2.20% | |
| 34. | 2023/11/30 | $102.48 | -0.21% | 4,567.80 | 8.92% | |
| 35. | 2023/12/31 | $109.02 | $0.77 | 7.13% | 4,769.83 | 4.42% |
| 36. | 2024/01/31 | $120.78 | 10.79% | 4,845.65 | 1.59% | |
| 37. | 2024/02/29 | $127.15 | 5.27% | 5,096.27 | 5.17% | |
| 38. | 2024/03/31 | $131.95 | $0.77 | 4.38% | 5,254.35 | 3.10% |
| 39. | 2024/04/30 | $129.22 | -2.07% | 5,035.69 | -4.16% | |
| 40. | 2024/05/31 | $125.54 | -2.85% | 5,277.51 | 4.80% | |
| 41. | 2024/06/30 | $123.80 | $0.77 | -0.77% | 5,460.48 | 3.47% |
| 42. | 2024/07/31 | $113.13 | -8.62% | 5,522.30 | 1.13% | |
| 43. | 2024/08/31 | $118.45 | 4.70% | 5,648.40 | 2.28% | |
| 44. | 2024/09/30 | $113.56 | $0.77 | -3.48% | 5,762.48 | 2.02% |
| 45. | 2024/10/31 | $102.32 | -9.90% | 5,705.45 | -0.99% | |
| 46. | 2024/11/30 | $101.64 | -0.66% | 6,032.38 | 5.73% | |
| 47. | 2024/12/31 | $99.48 | $0.81 | -1.33% | 5,881.63 | -2.50% |
| 48. | 2025/01/31 | $98.82 | -0.66% | 6,040.53 | 2.70% | |
| 49. | 2025/02/28 | $92.25 | -6.65% | 5,954.50 | -1.42% | |
| 50. | 2025/03/31 | $89.76 | $0.81 | -1.82% | 5,611.85 | -5.75% |
| 51. | 2025/04/30 | $85.20 | -5.08% | 5,569.06 | -0.76% | |
| 52. | 2025/05/31 | $76.84 | -9.81% | 5,911.69 | 6.15% | |
| 53. | 2025/06/30 | $79.16 | $0.81 | 4.07% | 6,204.95 | 4.96% |
| 54. | 2025/07/31 | $78.12 | -1.31% | 6,339.39 | 2.17% | |
| 55. | 2025/08/31 | $84.12 | 7.68% | 6,460.26 | 1.91% | |
| 56. | 2025/09/30 | $83.93 | $0.81 | 0.74% | 6,688.46 | 3.53% |
| 57. | 2025/10/31 | $85.98 | 2.44% | 6,840.20 | 2.27% | |
| 58. | 2025/11/30 | $104.83 | 21.92% | 6,849.09 | 0.13% | |
| 59. | 2025/12/31 | $105.26 | $0.85 | 1.22% | 6,845.50 | -0.05% |
| 平均 (R): | 1.08% | 1.14% | ||||
| 標準偏差： | 6.75% | 4.37% | ||||
すべて表示
1 普通株式1株当たり米ドルのデータで、分割と株式配当を調整したものです。
2 期間 tにおけるMRKの普通株式の収益率。
3 期間 tにおけるS&P 500(市場ポートフォリオの代理)の収益率。
分散と共分散
Merck & Co. Inc.、分散の計算、および戻り値の共分散
| t | 日付 | RMRK,t | RS&P 500,t | (RMRK,t–RMRK)2 | (RS&P 500,t–RS&P 500)2 | (RMRK,t–RMRK)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | 2021/02/28 | -5.77% | 2.61% | 46.96 | 2.17 | -10.09 |
| 2. | 2021/03/31 | 7.05% | 4.24% | 35.66 | 9.66 | 18.56 |
| 3. | 2021/04/30 | -3.36% | 5.24% | 19.70 | 16.86 | -18.22 |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 58. | 2025/11/30 | 21.92% | 0.13% | 434.52 | 1.01 | -20.97 |
| 59. | 2025/12/31 | 1.22% | -0.05% | 0.02 | 1.41 | -0.17 |
| トータル (Σ): | 2,638.75 | 1,108.23 | 288.27 | |||
| t | 日付 | RMRK,t | RS&P 500,t | (RMRK,t–RMRK)2 | (RS&P 500,t–RS&P 500)2 | (RMRK,t–RMRK)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | 2021/02/28 | -5.77% | 2.61% | 46.96 | 2.17 | -10.09 |
| 2. | 2021/03/31 | 7.05% | 4.24% | 35.66 | 9.66 | 18.56 |
| 3. | 2021/04/30 | -3.36% | 5.24% | 19.70 | 16.86 | -18.22 |
| 4. | 2021/05/31 | 1.87% | 0.55% | 0.62 | 0.35 | -0.46 |
| 5. | 2021/06/30 | 7.42% | 2.22% | 40.20 | 1.18 | 6.88 |
| 6. | 2021/07/31 | -1.16% | 2.27% | 5.00 | 1.30 | -2.55 |
| 7. | 2021/08/31 | -0.75% | 2.90% | 3.36 | 3.11 | -3.23 |
| 8. | 2021/09/30 | -0.69% | -4.76% | 3.14 | 34.73 | 10.45 |
| 9. | 2021/10/31 | 17.23% | 6.91% | 260.81 | 33.39 | 93.32 |
| 10. | 2021/11/30 | -14.92% | -0.83% | 256.06 | 3.88 | 31.52 |
| 11. | 2021/12/31 | 3.23% | 4.36% | 4.63 | 10.40 | 6.94 |
| 12. | 2022/01/31 | 6.32% | -5.26% | 27.42 | 40.89 | -33.49 |
| 13. | 2022/02/28 | -6.01% | -3.14% | 50.30 | 18.25 | 30.30 |
| 14. | 2022/03/31 | 8.04% | 3.58% | 48.52 | 5.96 | 17.00 |
| 15. | 2022/04/30 | 8.09% | -8.80% | 49.20 | 98.64 | -69.66 |
| 16. | 2022/05/31 | 3.77% | 0.01% | 7.22 | 1.28 | -3.04 |
| 17. | 2022/06/30 | -0.18% | -8.39% | 1.60 | 90.79 | 12.04 |
| 18. | 2022/07/31 | -2.01% | 9.11% | 9.52 | 63.61 | -24.61 |
| 19. | 2022/08/31 | -4.45% | -4.24% | 30.62 | 28.95 | 29.77 |
| 20. | 2022/09/30 | 1.70% | -9.34% | 0.38 | 109.74 | -6.50 |
| 21. | 2022/10/31 | 17.51% | 7.99% | 270.01 | 46.93 | 112.56 |
| 22. | 2022/11/30 | 8.81% | 5.38% | 59.84 | 17.97 | 32.79 |
| 23. | 2022/12/31 | 1.42% | -5.90% | 0.11 | 49.47 | -2.38 |
| 24. | 2023/01/31 | -3.19% | 6.18% | 18.23 | 25.39 | -21.51 |
| 25. | 2023/02/28 | -1.09% | -2.61% | 4.70 | 14.04 | 8.12 |
| 26. | 2023/03/31 | 0.83% | 3.51% | 0.06 | 5.61 | -0.59 |
| 27. | 2023/04/30 | 8.53% | 1.46% | 55.59 | 0.11 | 2.45 |
| 28. | 2023/05/31 | -4.38% | 0.25% | 29.82 | 0.79 | 4.85 |
| 29. | 2023/06/30 | 5.17% | 4.71% | 16.75 | 12.80 | 14.64 |
| 30. | 2023/07/31 | -7.57% | 4.85% | 74.87 | 13.76 | -32.10 |
| 31. | 2023/08/31 | 2.18% | -1.77% | 1.22 | 8.46 | -3.22 |
| 32. | 2023/09/30 | -4.86% | -4.87% | 35.30 | 36.10 | 35.70 |
| 33. | 2023/10/31 | -0.24% | -2.20% | 1.75 | 11.12 | 4.41 |
| 34. | 2023/11/30 | -0.21% | 8.92% | 1.67 | 60.56 | -10.06 |
| 35. | 2023/12/31 | 7.13% | 4.42% | 36.66 | 10.80 | 19.90 |
| 36. | 2024/01/31 | 10.79% | 1.59% | 94.26 | 0.21 | 4.40 |
| 37. | 2024/02/29 | 5.27% | 5.17% | 17.60 | 16.29 | 16.93 |
| 38. | 2024/03/31 | 4.38% | 3.10% | 10.90 | 3.86 | 6.49 |
| 39. | 2024/04/30 | -2.07% | -4.16% | 9.91 | 28.06 | 16.67 |
| 40. | 2024/05/31 | -2.85% | 4.80% | 15.42 | 13.44 | -14.39 |
| 41. | 2024/06/30 | -0.77% | 3.47% | 3.43 | 5.43 | -4.31 |
| 42. | 2024/07/31 | -8.62% | 1.13% | 94.04 | 0.00 | 0.04 |
| 43. | 2024/08/31 | 4.70% | 2.28% | 13.13 | 1.32 | 4.16 |
| 44. | 2024/09/30 | -3.48% | 2.02% | 20.76 | 0.78 | -4.03 |
| 45. | 2024/10/31 | -9.90% | -0.99% | 120.48 | 4.52 | 23.33 |
| 46. | 2024/11/30 | -0.66% | 5.73% | 3.04 | 21.10 | -8.01 |
| 47. | 2024/12/31 | -1.33% | -2.50% | 5.79 | 13.21 | 8.75 |
| 48. | 2025/01/31 | -0.66% | 2.70% | 3.03 | 2.45 | -2.73 |
| 49. | 2025/02/28 | -6.65% | -1.42% | 59.71 | 6.56 | 19.78 |
| 50. | 2025/03/31 | -1.82% | -5.75% | 8.41 | 47.48 | 19.98 |
| 51. | 2025/04/30 | -5.08% | -0.76% | 37.93 | 3.60 | 11.69 |
| 52. | 2025/05/31 | -9.81% | 6.15% | 118.61 | 25.16 | -54.63 |
| 53. | 2025/06/30 | 4.07% | 4.96% | 8.97 | 14.63 | 11.45 |
| 54. | 2025/07/31 | -1.31% | 2.17% | 5.72 | 1.06 | -2.47 |
| 55. | 2025/08/31 | 7.68% | 1.91% | 43.59 | 0.59 | 5.09 |
| 56. | 2025/09/30 | 0.74% | 3.53% | 0.12 | 5.74 | -0.82 |
| 57. | 2025/10/31 | 2.44% | 2.27% | 1.86 | 1.28 | 1.54 |
| 58. | 2025/11/30 | 21.92% | 0.13% | 434.52 | 1.01 | -20.97 |
| 59. | 2025/12/31 | 1.22% | -0.05% | 0.02 | 1.41 | -0.17 |
| トータル (Σ): | 2,638.75 | 1,108.23 | 288.27 | |||
すべて表示
分散MRK = Σ(RMRK,t–RMRK)2 ÷ (59 – 1)
= 2,638.75 ÷ (59 – 1)
= 45.50
分散S&P 500 = Σ(RS&P 500,t–RS&P 500)2 ÷ (59 – 1)
= 1,108.23 ÷ (59 – 1)
= 19.11
共 分散MRK, S&P 500 = Σ(RMRK,t–RMRK)×(RS&P 500,t–RS&P 500) ÷ (59 – 1)
= 288.27 ÷ (59 – 1)
= 4.97
システマティックなリスク推定 (β)
| 分散MRK | 45.50 |
| 分散S&P 500 | 19.11 |
| 共 分散MRK, S&P 500 | 4.97 |
| 相関係数MRK, S&P 5001 | 0.17 |
| βMRK2 | 0.26 |
| αMRK3 | 0.78% |
計算
1 相関係数MRK, S&P 500
= 共 分散MRK, S&P 500 ÷ (標準偏差MRK × 標準偏差S&P 500)
= 4.97 ÷ (6.75% × 4.37%)
= 0.17
2 βMRK
= 共 分散MRK, S&P 500 ÷ 分散S&P 500
= 4.97 ÷ 19.11
= 0.26
3 αMRK
= 平均MRK – βMRK × 平均S&P 500
= 1.08% – 0.26 × 1.14%
= 0.78%
期待収益率
| 仮定 | ||
| LT国債総合の収益率1 | RF | 4.94% |
| 市場ポートフォリオの期待収益率2 | E(RM) | 17.36% |
| 普通株式 Merck システマティックリスク | βMRK | 0.26 |
| メルク普通株式の期待収益率3 | E(RMRK) | 8.17% |
1 10年以内に期限が到来しない、または償還不能となるすべての発行済み固定利回り米国債の入札利回りの加重平均(リスクフリー・リターン・プロキシ)。
2 詳しく見る »
3 E(RMRK) = RF + βMRK [E(RM) – RF]
= 4.94% + 0.26 [17.36% – 4.94%]
= 8.17%