What are support and resistance levels?
If an analyst uses ex post data to calculate the correlation coefficient and covariance and
uses them in the Markowitz model, the assumption is that past relationships will
continue in the future.
The Auto Company (AC) had expected returns and realized returns for the periods
shown below:
Period Expected Return Actual Return
1 15% 16%
2 15% 13%
3 15% 17%
4 15% 15%
Calculate the cumulative abnormal return for the four periods.
Jensen’s alpha measures the contribution of the portfolio manager.
The typical business cycle in the United States seems to lead the stock market’s turning
point by a few months.