Fight Finance

(a) If stock A's return increases, stock B's return is also expected to increase.

(b) If stock A's return decreases, stock B's return is also expected to decrease.

(c) If stock A and B were combined in a portfolio, there would be no diversification at all since they are positively correlated.

(d) Stock A and B's returns have positive covariance.

(e) a and b.

(a) Short sellers benefit from price falls.

(b) To short sell, you must borrow the asset from person A and sell it to person B, then later on buy an identical asset from person C and return it to person A.

(c) Short selling only works for assets that are 'fungible' which means that there are many that are identical and substitutable, such as shares and bonds and unlike real estate.

(d) An investor who short-sells an asset has a negative weight in that asset.

(e) An investor who short-sells an asset is said to be 'long' that asset.

(a) ##V_0=\dfrac{C_t}{(1+r)^t} ##

(b) ##V_0=\dfrac{C_1}{r}.\left(1-\dfrac{1}{(1+r)^T} \right)= \sum\limits_{t=1}^T \left( \dfrac{C_t}{(1+r)^t} \right) ##

(c) ##V_0=\dfrac{C_1}{r-g}.\left(1-\left(\dfrac{1+g}{1+r}\right)^T \right)= \sum\limits_{t=1}^T \left( \dfrac{C_t.(1+g)^t}{(1+r)^t} \right) ##

(d) ##V_0=\dfrac{C_1}{r} = \sum\limits_{t=1}^\infty \left( \dfrac{C_t}{(1+r)^t} \right) ##

(e) ##V_0=\dfrac{C_1}{r-g} = \sum\limits_{t=1}^\infty \left( \dfrac{C_t.(1+g)^t}{(1+r)^t} \right) ##

(a) Asset A has a Jensen's alpha of 4.5% pa.

(b) Asset A is under-priced.

(c) The NPV of buying asset A is zero.

(d) Asset B has a Jensen's alpha of zero.

(e) Asset B is fairly priced.

(a) Obligation to buy the underlying oil at $44 per barrel.

(b) Obligation to sell the underlying oil at $44 per barrel.

(c) Right to buy the underlying oil at $44 per barrel if she wants.

(d) Right to sell the underlying oil at $44 per barrel if she wants.

(e) Obligation to buy the underlying oil at $44 per barrel if her counter party chooses to sell it.

(a) $95.345378

(b) $95.819741

(c) $96.138082

(d) $96.296464

(e) $96.775559

(a) The median portfolio value in one year is $1,105,171. In one month it's $1,008,368.

(b) The mean portfolio value in one year is $1,197,217. In one month it's $1,015,113.

(c) The worst one percentile of portfolio values in one year is $435,178.

(d) The worst one percentile of portfolio values in one month is $933,016.

(e) The 98% confidence interval of portfolio values in two years is between $326,918 and $4,563,305.

(a) The market portfolio M has systematic risk only. It’s a fully diversified portfolio comprised of all individual risky assets. The market portfolio is usually assumed to be the equity index, such as the ASX200 in Australia or the S&P500 in the US.

(b) The risk free security has no risk at all. Government bonds are usually assumed to be the risk-free security.

(c) Portfolio combinations of the market portfolio and risk free security will plot on the CML and will have systematic risk only. They will have no diversifiable risk.

(d) The portfolios on the CML with a return above ##r_f## have maximum return for any given level of risk.

(e) The individual assets and portfolios with returns less than the risk free rate are over-priced, have a negative Jensen’s alpha and should be sold.

(a) Is the weighted average time that an asset’s cash flows are received, usually measured in years.

(b) Divided by (1+y) equals the modified duration, where y is the yield to maturity given as an effective annual rate and duration is measured in years.

(c) Of a zero-coupon bond is equal to the bond’s maturity.

(d) Of a fixed-coupon-paying bond will be less than the bond’s maturity.

(e) Of a portfolio is an arithmetic average of the Macaulay durations of the assets in the portfolio, weighted by their face values.

(a) 0%

(b) 30.102999566%

(c) 69.314718056%

(d) 100%

(e) 200%