資本資産価格設定モデル (CAPM)
資本資産価格モデル(CAPM)は、 Boeing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
Boeing Co.、月間収益率
| Boeing Co. (BA) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | 日付 | 価格BA,t1 | 配当BA,t1 | RBA,t2 | 価格S&P 500,t | RS&P 500,t3 |
| 2021/01/31 | $194.19 | 3,714.24 | ||||
| 1. | 2021/02/28 | $212.01 | 9.18% | 3,811.15 | 2.61% | |
| 2. | 2021/03/31 | $254.72 | 20.15% | 3,972.89 | 4.24% | |
| 3. | 2021/04/30 | $234.31 | -8.01% | 4,181.17 | 5.24% | |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 58. | 2025/11/30 | $189.00 | -5.98% | 6,849.09 | 0.13% | |
| 59. | 2025/12/31 | $217.12 | 14.88% | 6,845.50 | -0.05% | |
| 平均 (R): | 0.73% | 1.14% | ||||
| 標準偏差： | 10.47% | 4.37% | ||||
| Boeing Co. (BA) | Standard & Poor’s 500 (S&P 500) | |||||
|---|---|---|---|---|---|---|
| t | 日付 | 価格BA,t1 | 配当BA,t1 | RBA,t2 | 価格S&P 500,t | RS&P 500,t3 |
| 2021/01/31 | $194.19 | 3,714.24 | ||||
| 1. | 2021/02/28 | $212.01 | 9.18% | 3,811.15 | 2.61% | |
| 2. | 2021/03/31 | $254.72 | 20.15% | 3,972.89 | 4.24% | |
| 3. | 2021/04/30 | $234.31 | -8.01% | 4,181.17 | 5.24% | |
| 4. | 2021/05/31 | $247.02 | 5.42% | 4,204.11 | 0.55% | |
| 5. | 2021/06/30 | $239.56 | -3.02% | 4,297.50 | 2.22% | |
| 6. | 2021/07/31 | $226.48 | -5.46% | 4,395.26 | 2.27% | |
| 7. | 2021/08/31 | $219.50 | -3.08% | 4,522.68 | 2.90% | |
| 8. | 2021/09/30 | $219.94 | 0.20% | 4,307.54 | -4.76% | |
| 9. | 2021/10/31 | $207.03 | -5.87% | 4,605.38 | 6.91% | |
| 10. | 2021/11/30 | $197.85 | -4.43% | 4,567.00 | -0.83% | |
| 11. | 2021/12/31 | $201.32 | 1.75% | 4,766.18 | 4.36% | |
| 12. | 2022/01/31 | $200.24 | -0.54% | 4,515.55 | -5.26% | |
| 13. | 2022/02/28 | $205.34 | 2.55% | 4,373.94 | -3.14% | |
| 14. | 2022/03/31 | $191.50 | -6.74% | 4,530.41 | 3.58% | |
| 15. | 2022/04/30 | $148.84 | -22.28% | 4,131.93 | -8.80% | |
| 16. | 2022/05/31 | $131.40 | -11.72% | 4,132.15 | 0.01% | |
| 17. | 2022/06/30 | $136.72 | 4.05% | 3,785.38 | -8.39% | |
| 18. | 2022/07/31 | $159.31 | 16.52% | 4,130.29 | 9.11% | |
| 19. | 2022/08/31 | $160.25 | 0.59% | 3,955.00 | -4.24% | |
| 20. | 2022/09/30 | $121.08 | -24.44% | 3,585.62 | -9.34% | |
| 21. | 2022/10/31 | $142.51 | 17.70% | 3,871.98 | 7.99% | |
| 22. | 2022/11/30 | $178.88 | 25.52% | 4,080.11 | 5.38% | |
| 23. | 2022/12/31 | $190.49 | 6.49% | 3,839.50 | -5.90% | |
| 24. | 2023/01/31 | $213.00 | 11.82% | 4,076.60 | 6.18% | |
| 25. | 2023/02/28 | $201.55 | -5.38% | 3,970.15 | -2.61% | |
| 26. | 2023/03/31 | $212.43 | 5.40% | 4,109.31 | 3.51% | |
| 27. | 2023/04/30 | $206.78 | -2.66% | 4,169.48 | 1.46% | |
| 28. | 2023/05/31 | $205.70 | -0.52% | 4,179.83 | 0.25% | |
| 29. | 2023/06/30 | $211.16 | 2.65% | 4,376.86 | 4.71% | |
| 30. | 2023/07/31 | $238.85 | 13.11% | 4,588.96 | 4.85% | |
| 31. | 2023/08/31 | $224.03 | -6.20% | 4,507.66 | -1.77% | |
| 32. | 2023/09/30 | $191.68 | -14.44% | 4,288.05 | -4.87% | |
| 33. | 2023/10/31 | $186.82 | -2.54% | 4,193.80 | -2.20% | |
| 34. | 2023/11/30 | $231.63 | 23.99% | 4,567.80 | 8.92% | |
| 35. | 2023/12/31 | $260.66 | 12.53% | 4,769.83 | 4.42% | |
| 36. | 2024/01/31 | $211.04 | -19.04% | 4,845.65 | 1.59% | |
| 37. | 2024/02/29 | $203.72 | -3.47% | 5,096.27 | 5.17% | |
| 38. | 2024/03/31 | $192.99 | -5.27% | 5,254.35 | 3.10% | |
| 39. | 2024/04/30 | $167.84 | -13.03% | 5,035.69 | -4.16% | |
| 40. | 2024/05/31 | $177.61 | 5.82% | 5,277.51 | 4.80% | |
| 41. | 2024/06/30 | $182.01 | 2.48% | 5,460.48 | 3.47% | |
| 42. | 2024/07/31 | $190.60 | 4.72% | 5,522.30 | 1.13% | |
| 43. | 2024/08/31 | $173.74 | -8.85% | 5,648.40 | 2.28% | |
| 44. | 2024/09/30 | $152.04 | -12.49% | 5,762.48 | 2.02% | |
| 45. | 2024/10/31 | $149.31 | -1.80% | 5,705.45 | -0.99% | |
| 46. | 2024/11/30 | $155.44 | 4.11% | 6,032.38 | 5.73% | |
| 47. | 2024/12/31 | $177.00 | 13.87% | 5,881.63 | -2.50% | |
| 48. | 2025/01/31 | $176.52 | -0.27% | 6,040.53 | 2.70% | |
| 49. | 2025/02/28 | $174.63 | -1.07% | 5,954.50 | -1.42% | |
| 50. | 2025/03/31 | $170.55 | -2.34% | 5,611.85 | -5.75% | |
| 51. | 2025/04/30 | $183.24 | 7.44% | 5,569.06 | -0.76% | |
| 52. | 2025/05/31 | $207.32 | 13.14% | 5,911.69 | 6.15% | |
| 53. | 2025/06/30 | $209.53 | 1.07% | 6,204.95 | 4.96% | |
| 54. | 2025/07/31 | $221.84 | 5.88% | 6,339.39 | 2.17% | |
| 55. | 2025/08/31 | $234.68 | 5.79% | 6,460.26 | 1.91% | |
| 56. | 2025/09/30 | $215.83 | -8.03% | 6,688.46 | 3.53% | |
| 57. | 2025/10/31 | $201.02 | -6.86% | 6,840.20 | 2.27% | |
| 58. | 2025/11/30 | $189.00 | -5.98% | 6,849.09 | 0.13% | |
| 59. | 2025/12/31 | $217.12 | 14.88% | 6,845.50 | -0.05% | |
| 平均 (R): | 0.73% | 1.14% | ||||
| 標準偏差： | 10.47% | 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BA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
Boeing Co.、分散の計算、および戻り値の共分散
| t | 日付 | RBA,t | RS&P 500,t | (RBA,t–RBA)2 | (RS&P 500,t–RS&P 500)2 | (RBA,t–RBA)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | 2021/02/28 | 9.18% | 2.61% | 71.37 | 2.17 | 12.44 |
| 2. | 2021/03/31 | 20.15% | 4.24% | 377.01 | 9.66 | 60.34 |
| 3. | 2021/04/30 | -8.01% | 5.24% | 76.41 | 16.86 | -35.90 |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| . | . | . | . | . | . | . |
| 58. | 2025/11/30 | -5.98% | 0.13% | 45.00 | 1.01 | 6.75 |
| 59. | 2025/12/31 | 14.88% | -0.05% | 200.21 | 1.41 | -16.82 |
| トータル (Σ): | 6,361.12 | 1,108.23 | 1,296.50 | |||
| t | 日付 | RBA,t | RS&P 500,t | (RBA,t–RBA)2 | (RS&P 500,t–RS&P 500)2 | (RBA,t–RBA)×(RS&P 500,t–RS&P 500) |
|---|---|---|---|---|---|---|
| 1. | 2021/02/28 | 9.18% | 2.61% | 71.37 | 2.17 | 12.44 |
| 2. | 2021/03/31 | 20.15% | 4.24% | 377.01 | 9.66 | 60.34 |
| 3. | 2021/04/30 | -8.01% | 5.24% | 76.41 | 16.86 | -35.90 |
| 4. | 2021/05/31 | 5.42% | 0.55% | 22.05 | 0.35 | -2.76 |
| 5. | 2021/06/30 | -3.02% | 2.22% | 14.05 | 1.18 | -4.07 |
| 6. | 2021/07/31 | -5.46% | 2.27% | 38.30 | 1.30 | -7.05 |
| 7. | 2021/08/31 | -3.08% | 2.90% | 14.52 | 3.11 | -6.72 |
| 8. | 2021/09/30 | 0.20% | -4.76% | 0.28 | 34.73 | 3.11 |
| 9. | 2021/10/31 | -5.87% | 6.91% | 43.54 | 33.39 | -38.13 |
| 10. | 2021/11/30 | -4.43% | -0.83% | 26.65 | 3.88 | 10.17 |
| 11. | 2021/12/31 | 1.75% | 4.36% | 1.05 | 10.40 | 3.31 |
| 12. | 2022/01/31 | -0.54% | -5.26% | 1.60 | 40.89 | 8.09 |
| 13. | 2022/02/28 | 2.55% | -3.14% | 3.31 | 18.25 | -7.77 |
| 14. | 2022/03/31 | -6.74% | 3.58% | 55.78 | 5.96 | -18.23 |
| 15. | 2022/04/30 | -22.28% | -8.80% | 529.25 | 98.64 | 228.48 |
| 16. | 2022/05/31 | -11.72% | 0.01% | 154.90 | 1.28 | 14.07 |
| 17. | 2022/06/30 | 4.05% | -8.39% | 11.02 | 90.79 | -31.63 |
| 18. | 2022/07/31 | 16.52% | 9.11% | 249.46 | 63.61 | 125.97 |
| 19. | 2022/08/31 | 0.59% | -4.24% | 0.02 | 28.95 | 0.75 |
| 20. | 2022/09/30 | -24.44% | -9.34% | 633.61 | 109.74 | 263.69 |
| 21. | 2022/10/31 | 17.70% | 7.99% | 288.00 | 46.93 | 116.25 |
| 22. | 2022/11/30 | 25.52% | 5.38% | 614.66 | 17.97 | 105.10 |
| 23. | 2022/12/31 | 6.49% | -5.90% | 33.20 | 49.47 | -40.52 |
| 24. | 2023/01/31 | 11.82% | 6.18% | 122.95 | 25.39 | 55.88 |
| 25. | 2023/02/28 | -5.38% | -2.61% | 37.26 | 14.04 | 22.87 |
| 26. | 2023/03/31 | 5.40% | 3.51% | 21.80 | 5.61 | 11.06 |
| 27. | 2023/04/30 | -2.66% | 1.46% | 11.48 | 0.11 | -1.11 |
| 28. | 2023/05/31 | -0.52% | 0.25% | 1.56 | 0.79 | 1.11 |
| 29. | 2023/06/30 | 2.65% | 4.71% | 3.71 | 12.80 | 6.89 |
| 30. | 2023/07/31 | 13.11% | 4.85% | 153.38 | 13.76 | 45.94 |
| 31. | 2023/08/31 | -6.20% | -1.77% | 48.07 | 8.46 | 20.16 |
| 32. | 2023/09/30 | -14.44% | -4.87% | 230.09 | 36.10 | 91.13 |
| 33. | 2023/10/31 | -2.54% | -2.20% | 10.65 | 11.12 | 10.88 |
| 34. | 2023/11/30 | 23.99% | 8.92% | 540.89 | 60.56 | 180.98 |
| 35. | 2023/12/31 | 12.53% | 4.42% | 139.34 | 10.80 | 38.80 |
| 36. | 2024/01/31 | -19.04% | 1.59% | 390.65 | 0.21 | -8.96 |
| 37. | 2024/02/29 | -3.47% | 5.17% | 17.62 | 16.29 | -16.94 |
| 38. | 2024/03/31 | -5.27% | 3.10% | 35.95 | 3.86 | -11.79 |
| 39. | 2024/04/30 | -13.03% | -4.16% | 189.35 | 28.06 | 72.90 |
| 40. | 2024/05/31 | 5.82% | 4.80% | 25.93 | 13.44 | 18.67 |
| 41. | 2024/06/30 | 2.48% | 3.47% | 3.06 | 5.43 | 4.08 |
| 42. | 2024/07/31 | 4.72% | 1.13% | 15.93 | 0.00 | -0.02 |
| 43. | 2024/08/31 | -8.85% | 2.28% | 91.67 | 1.32 | -10.98 |
| 44. | 2024/09/30 | -12.49% | 2.02% | 174.73 | 0.78 | -11.68 |
| 45. | 2024/10/31 | -1.80% | -0.99% | 6.37 | 4.52 | 5.37 |
| 46. | 2024/11/30 | 4.11% | 5.73% | 11.40 | 21.10 | 15.51 |
| 47. | 2024/12/31 | 13.87% | -2.50% | 172.70 | 13.21 | -47.77 |
| 48. | 2025/01/31 | -0.27% | 2.70% | 1.00 | 2.45 | -1.57 |
| 49. | 2025/02/28 | -1.07% | -1.42% | 3.24 | 6.56 | 4.61 |
| 50. | 2025/03/31 | -2.34% | -5.75% | 9.39 | 47.48 | 21.12 |
| 51. | 2025/04/30 | 7.44% | -0.76% | 45.05 | 3.60 | -12.74 |
| 52. | 2025/05/31 | 13.14% | 6.15% | 154.07 | 25.16 | 62.26 |
| 53. | 2025/06/30 | 1.07% | 4.96% | 0.11 | 14.63 | 1.29 |
| 54. | 2025/07/31 | 5.88% | 2.17% | 26.49 | 1.06 | 5.30 |
| 55. | 2025/08/31 | 5.79% | 1.91% | 25.60 | 0.59 | 3.90 |
| 56. | 2025/09/30 | -8.03% | 3.53% | 76.75 | 5.74 | -20.99 |
| 57. | 2025/10/31 | -6.86% | 2.27% | 57.62 | 1.28 | -8.60 |
| 58. | 2025/11/30 | -5.98% | 0.13% | 45.00 | 1.01 | 6.75 |
| 59. | 2025/12/31 | 14.88% | -0.05% | 200.21 | 1.41 | -16.82 |
| トータル (Σ): | 6,361.12 | 1,108.23 | 1,296.50 | |||
すべて表示
分散BA = Σ(RBA,t–RBA)2 ÷ (59 – 1)
= 6,361.12 ÷ (59 – 1)
= 109.67
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BA, S&P 500 = Σ(RBA,t–RBA)×(RS&P 500,t–RS&P 500) ÷ (59 – 1)
= 1,296.50 ÷ (59 – 1)
= 22.35
システマティックなリスク推定 (β)
| 分散BA | 109.67 |
| 分散S&P 500 | 19.11 |
| 共 分散BA, S&P 500 | 22.35 |
| 相関係数BA, S&P 5001 | 0.49 |
| βBA2 | 1.17 |
| αBA3 | -0.60% |
計算
1 相関係数BA, S&P 500
= 共 分散BA, S&P 500 ÷ (標準偏差BA × 標準偏差S&P 500)
= 22.35 ÷ (10.47% × 4.37%)
= 0.49
2 βBA
= 共 分散BA, S&P 500 ÷ 分散S&P 500
= 22.35 ÷ 19.11
= 1.17
3 αBA
= 平均BA – βBA × 平均S&P 500
= 0.73% – 1.17 × 1.14%
= -0.60%
期待収益率
| 仮定 | ||
| LT国債総合の収益率1 | RF | 4.79% |
| 市場ポートフォリオの期待収益率2 | E(RM) | 17.38% |
| 普通株式 Boeing システマティックリスク | βBA | 1.17 |
| ボーイング普通株式の期待収益率3 | E(RBA) | 19.52% |
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(RBA) = RF + βBA [E(RM) – RF]
= 4.79% + 1.17 [17.38% – 4.79%]
= 19.52%