Step-by-step explanation:
To determine how you performed against the benchmark, we need to calculate the benchmark return and compare it to your portfolio return.
The benchmark return can be calculated by weighting the returns of the S&P 500 and ACWI indices based on their respective weights:
Benchmark return = (Weight of S&P 500 × Return of S&P 500) + (Weight of ACWI × Return of ACWI)
Weight of S&P 500 = 75%
Return of S&P 500 = -2.93%
Weight of ACWI = 25%
Return of ACWI = -5.13%
Benchmark return = (0.75 × (-2.93%)) + (0.25 × (-5.13%))
Benchmark return = (-2.1975%) + (-1.2825%)
Benchmark return = -3.48%
Now, let's calculate your portfolio return:
Portfolio return = (Ending value - Initial investment) / Initial investment
Portfolio return = (168,665 - 175,000) / 175,000
Portfolio return = -0.036257 (-3.63%)
Finally, to calculate the alpha, we subtract the benchmark return from your portfolio return:
Alpha = Portfolio return - Benchmark return
Alpha = -3.63% - (-3.48%)
Alpha = -0.15% (-15 basis points)
Therefore, the closest option that describes your performance against the benchmark is: "Your alpha is -15 basis points."