Chapter 4 Flashcards
What is Asset Liability Management (ALM)
Strategy to meet future contingent liability
What is the MVO model?
The Mean-Variance Optimisation model
What are the limitations of the MVO model? (3)
- allocations are extremely sensitive to model inputs
- small change in input can alter the allocations drastically
- Very sensitive to expected returns
How does expected returns sometimes limit the MVO?
Can generate unreasonable allocations
How can difficulties on MVO be countered?
- Re-run the MVO procedure many times over around target allocations and permitted ranges
- assess sensitivities of performance outcomes
What did Black and Litterman propose to help with sensitivity of MVO to estimates of expected returns? (3)
Use expected returns from observed market prices
This assumes asset pricing models such as CAPM holds
current market prices are converted into expected return estimates
What is portfolio insurance?
Technique for limiting potential loss on a portfolio
What is the idea behind portfolio insurance strategies? (2)
maintain certain level of wealth
while allowing investor to participate in rising equity market
What theory is portfolio insurance strategy based on?
Options theory
What is the risk/reward profile of call options?
unlimited exposure to any potential profits but limited exposure to losses
What is a put options and how does it become more valuable? (2)
- right to sell stock at a specified price in the future
- if asset falls in value, then can get more for selling
What condition are put options bad? (4)
- falling/bearish market
- put options very expensive
- large premium
- costs passed to investors
What do Leland and Rubenstein propose for an option-based portfolio? (2)
- Buying a portfolio of risky assets
- a put option written on it
How does Leland and Rubensteins’ option-based portfolio help investors?
- Put option hedges downside risk of equity investment
What is CPPI?
Constant proportion portfolio insurance
What is the CPPI strategy?
a trading strategy that dynamically allocates assets between a risk-free asset and a portfolio of risky assets
How does CPPI help investor? (2)
- can get gain in favourable market conditions
- limits loss
What are the advantages of selling futures contracts for portfolio insurance? (3)
- lower cost
- greater efficiency
- less portfolio disruption
What are the shortcoming of using futures for portfolio insurance? (3)
- Hard to get same risk characteristics
- Hard to know when to enter and exit the futures contract
- Calculating the number of futures contract to sell
What is it hard to get the same risk characteristic of a portfolio for futures contract?
might not have a suitable index with the same risk characteristic
How does synthesising a portfolio with call options work?
- hold cash / shor-dated government bonds
- buy call options for requisite instruments
What is the upside of a synthesised portfolio with call options? (2)
- price of instrument rise, exercise call option
- the price of the instrument falls, only the price of call options is lost
What are the drawbacks of a synthesised portfolio using call options? (4)
- call option premiums expensive
- needs rolling over
- often not available on many investments
- call option doesn’t allow to participate in total returns of actual investment
How is net worth of an ALM portfolio calculated?
Net worth = PV of assets in portfolio - PV of liabilities
What is risk parity?
different assets have the same level of risk contribution
What is the problem with risk parity? (3)
low returns as high bond allocation
heavy quantitative approach
leverage might be expensive to boost returns
What are the critiques on risk parity?
- assumes risk is represented by volatility
- proved flaws in VaR methodologies
- no views on future returns
- can include asset classes with 0 or -ve risk premiums
What is risk budgeting for portfolio construction? 🗓️
setting long-term plan about risks they plan to take on investments place in portfolio