|1|1 Investments Academic Year 2004 - 2005 Lectures n° 3 & 4 The Investment Process.
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Transcript of |1|1 Investments Academic Year 2004 - 2005 Lectures n° 3 & 4 The Investment Process.
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Investments
Academic Year 2004 - 2005
Lectures n° 3 & 4
The Investment Process
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4.1. The investement process
1. Set investment policy2. Perform security analysis3. Construct a portfolio4. Revise the portfolio5. Evaluate the performance of the
portfolio
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1. Set the investment policy
• Investments objectives set in terms of risk/return ratio.
• Depend on :– the return requirement of the investor, – compared with the risk he is willing to assume (risk
tolerance)
• Factors affecting the decision : – utility function (tastes) and risk aversion (wealth, tastes) – investment horizon– liquidity needs– outside environment, etc.
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1. Set the investment policy
• Examples of investment objectives in mutual funds classification :– Maximum capital gain– Growth– Growth and income– Income– Income and security
• Portfolios varying in terms of : asset mix - industry - currency - horizon - active / passive management
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2. Perform security analysis
• Attempts to identify mispriced financial assets:– Buy undervalued securities (expected to rise in price)– Sell overvalued securities (expected to decline in price)
• Two types of security analysis:– Technical analysis = graphical analysis of stock prices, in
order to identify patterns contradicts the weak form of market efficiency
– Fundamental analysis = estimate the intrinsic value of a stock / company based on its expected cash-flows, and compare it with the market price
contradicts the semi-strong form of market efficiency
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2.1. Fundamental Analysis
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2.1. Fundamental Analysis
• Asset valuation - reminder
Definition : Intrinsic value of a stock = sum of expected future dividends, actualised at a rate k
Several main parameters / uncertainties: Firm parameters :
• Profit of the firm : • Payout ratio : (1-b)
leading to : • Dividend amount : D = . (1-b)• Growth rate of dividend : g, such as : Dt+1 = (1+g) . Dt
k
D
k
D
k
DV
...
)1()1( 221
0
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2.1. Fundamental Analysis
• DDM Simple Form - reminder
a) We have, if D is constant (Zero-Growth Model)
b) If D is supposed to grow at a constant rate “g” over time, with: Dt+1
= (1+g) . Dt.
The value of the equity of the firm becomes (Constant Growth Model) -
“Gordon - Shapiro” model :
k
D
k
D
k
DV
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2.1. Fundamental Analysis
• DDM - implications
• The stock price is expected to grow at the same rate (g) as
dividends:• g = growth rate of earnings, but, since dividends are
proportional to earnings (hypothesis of the model)• then g = also the growth rate of dividends
Concept check :
What if dividends are not proportional to earnings?
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2.1. Fundamental Analysis
• Multiple Growth Model– More complex version of DDM: multistage version for
various values of g over time : Observe current D Estimate growth rate of D : stages 1 Estimate number of stages Estimate growth rate per stage Estimate payout ratio (at different stages) Formula :
• Estimation of g of a limited number of years (N). After a medium-term period (N) : reasonable to estimate g at the same expected growth rate of the economy.
N
NN
kgk
DD
k
D
k
DV
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1
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2.1. Fundamental Analysis
• Valuation Methods
– What if ?
The dividends distributed are very low?The firm is risky?The firm is mature?The firm is at a young development stage?...
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2.1. Fundamental Analysis
• Should you distribute dividends ?ROE & g
– By the Gordon-Shapiro relation, g and k are key in the determination of intrinsic value :
g : expected growth rate of earnings k : discount rate of earnings
We have : g = (ROE new investment) x (1-payout)
Meaning : Growth of earnings = generation rate of income * retention
ratio
g = ROE * b (1)
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2.1. Fundamental Analysis
• ROE & g
By (1), we have :
Where : E1 = expected earnings of the firm in the next period
• So : P0/E1 rises when ROE rises
• And : P0/E1 rises for higher levels of b, as long as : ROE > k
So a firm should undertake a new investment only if ROE > k
Meaning : when money is expected to generate higher return if invested within the firm (on new projects) than on the status quo.
)*(
)1()1( 11100 bROEk
bE
gk
bE
gk
DPV
(2)
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2.1. Fundamental Analysis
• ROE & g
The firm is thus better to rise its retention ratio if its new investment projects yield more than what the firm remunerates its shareholders (k) => endogeneity of b, then ...
By (2), we have :
if stocks trade at intrinsic value
And we have : V < E if ROE < k V > E if ROE > k
bROEk
b
E
P
.
1
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ChemicalsAutoFoodPharmaUS marketunattractive
valuations
0
attractivevaluations
Source : ING Asset Management
2.1. Fundamental Analysis
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HardwareInformation TechnologySoftwareUS market
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2.1. Fundamental Analysis
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2.2. Security Selection (“Stock Picking”)
• Definition: selecting certain stocks in a portfolio different from the benchmark (the reference index), or to overweight them, in order to outperform the portfolio benchmark.
• Supposes that markets are nearly efficient, i.e., that some securities are mispriced compared to their betas; bringing positive alphas to the portfolio;
• Lead to excessive concentration on certain securities, leading to a firm-specific risk– -> Optimal security selection is a trade-off between
estimated mispricing and the firm-specific risk added to the portfolio (Treynor and Black (1975)).
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2.2. Reminder – CAPM
• Beta measures the extent to which returns of the stock and the market move together. Beta is defined as :
• The risk premium on individual securities is equal to :
• In this simple version of the CAPM, investors are myopic: there is no anticipation of changes in the market conditions.
• Preferences, risk aversion of investors, and security returns are supposed to be stable over time.
M
iiM
MM
MiiM
M
iM
M
Mii
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22
),(
))(()( fMifi rrErrE
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2.2. Reminder – Single – Index Model
)(2222pmpp e
• First term : systematic risk of the portfolio p.• Second term : can be diversified away (diversifiable risk) :
where is the average of the firm-specific variances.
)(1
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Var(R)
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2.2. Reminder – Market Model
• Hyp: "Return surprises" (Abnormal returns) proportional to the corresponding surprises on the market portfolio. Many applications in event studies.
• where :
• Remark: Over the long term, the beta of a company tends to evolve to 1 over time (no persistence of the systematic risk), due to the size effect and to the life cycle of the firm:
-> Merrill Lynch "adjusted beta" = 2/3 sample beta + 1/3 .1
immiii eRERRER )()(
fmiifi RRERRE )()(
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2.2. Reminder – CAPM testing
Overall methodological difficulty:– Results may also reflect variations of risk premium over
time: movements in returns can be either due to facts linked to the firm individually, or to the market as a whole.
– One can not know whether a change in return ri is due to
the firm's parameters (i), or to the market premium.
– Efficiency tests are joint tests of EMH and risk-adjustment procedures (rise in risk -> rise in risk premium -> rise in returns).
– By :))(()( fMiifi rrErrE
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2.3. Technical Analysis
© 1999 Bloomberg L.P. All rights reserved© 1999 Bloomberg L.P. All rights reserved
• MARKET PSYCHOLOGYMARKET PSYCHOLOGY• PAST-PRESENT-FUTURE PAST-PRESENT-FUTURE • PATTERNS CAN BE SIMILARPATTERNS CAN BE SIMILAR• TRENDSTRENDS• SUPPORT-RESISTANCESUPPORT-RESISTANCE• POINTS&FIGURESPOINTS&FIGURES• MOVING AVERAGESMOVING AVERAGES• MOMENTUMSMOMENTUMS
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3. Construct the portfolio
• Identification of the assets in which to invest– definition of the asset mix : equity - bonds - cash- real
estate…– definition of the asset allocation : % of cash, bonds, equity…
• Decision on three main portfolio dimensions :– diversification :
per country / geographical zone per currency per sector / industry
– timing : when to invest in what : switch between bonds and equity
– selectivity : individually select supposed mispriced securities (“stock picking”)
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3.1. Active Asset Allocation
• Active Portfolio Allocation– Global Asset Allocation : Equity – Bond – Cash
• Active Equity Allocation – Regional Allocation – Sector Allocation– Stock Picking– Market Timing
• Active Bond Allocation– Duration (Volatility)– Yield curve positioning– Corporate<>Government Bonds– Currency Allocation
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3.1. Active Asset Allocation
Return of different investment alternatives (USA 1926-1997)
– Average Risk Premium Shares : 6,8% Government Bonds : 1,4%
– Average Risk Level Shares : 19,8% Government Bonds : 10,6% Treasury bills : 4,2%
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3.1. Active Asset Allocation
Return of different investment alternatives (USA 1926-1997)
– E (Nominal return) ? Treasury bills (nom) + Average Risk Premium Shares : 3,8% + 6,8% = 10,6% Gov. Bonds : 3,8% + 1,4% = 5,2%
– E (Real return) ? Treasury bills (real) + Average Risk Premium Shares : 0,6% + 6,8% = 7,4% Gov. Bonds : 0,6% + 1,4% = 2,0%
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-$29,000-$29,000
-$16,000-$16,000
-$4,600-$4,600
$50,200$50,200
$26,400$26,400
$12,200$12,200
-$40
,000
-$40
,000
-$30
,000
-$30
,000
-$20
,000
-$20
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-$10
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000
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$30,
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$40,
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$50,
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$50,
000
$60,
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$60,
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SHARESSHARES
BONDSBONDS
T-BILLST-BILLS
Assuming the past if a good proxy of the future, if you invest 100,000$, you have 95% chances to earn annually between :
3.1. Active Asset Allocation
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3.1. Active Asset Allocation - Investment Horizon
-10%
-5%
0%
5%
10%
15%
30's 40's 50's 60's 70's 80's 90's
STOCKS BONDS CASH Source : US data, ING group report
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Definition : Shift of funds from one type of investment to another (usually between bonds and stocks) depending on their expected returns over a limited period of time.
Consider two different investment strategies (ex. from Merton): - 52 years investment (1.1.1927 – 31.12.1978) of $ 1,000 in
30-day commercial paper : brings $ 3,600- same investment in the NYSE index: brings $ 67,500
Question : How much would have made an investor that would have correctly anticipated, at the beginning of each month, which type of investment will do better, and completely shifted funds accordingly?
3.1. Active Asset Allocation – Market Timing
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Answer : $ 5,360,000,000.This example shows:
- the considerable of interest compounding, increasing with the investment horizon,
- the difference between the risk-free savings and the stock index : this is explained by the risk born by the investor. The risk relates to the moment of which stock investors will get their return, more than to size of it.
Of course, surperformance limited in practice, due to imperfect anticipations, and to transactions costs.
In practice market timing is the second source of surperformance in active portfolio management, after asset allocation and before security selection.
3.1. Active Asset Allocation – Market Timing
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3.1. Active Asset Allocation – Market Timing
MSCI EUROPEMSCI EUROPEAND JPM EUROPE (bonds – straight line)AND JPM EUROPE (bonds – straight line)
6,31%6,31%
-30%-30%
-20%-20%
-10%-10%
0%0%
10%10%
20%20%
30%30%
40%40%
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3.1. Active Asset Allocation – Market Timing
SHARES BESTSHARES BESTIN 58% OF THEIN 58% OF THEOCCURENCESOCCURENCES
BONDS BESTBONDS BESTIN 42% OF THEIN 42% OF THEOCCURENCESOCCURENCES -20%-20%
-15%-15%
-10%-10%
-5%-5%
0%0%
5%5%
10%10%
15%15%
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Monthly relative performances (line = r equity – r bonds)
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3.2. Active Equity Allocation
• Active Portfolio Allocation– Global Asset Allocation : Equity – Bond – Cash
• Active Equity Allocation – Regional Allocation – Sector Allocation– Stock Picking– Market Timing
• Active Bond Allocation– Duration (Volatility)– Yield curve positioning– Corporate<>Government Bonds– Currency Allocation
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3.2. Active Equity Allocation – Regional Allocation
• International portfolio diversification with better risk/return characteristics.
• What it the optimal number of shares in a well-diversified portfolio?
– Depends on the size of the reference market and on the correlation matrix.
– And : Trade-off between diversification and transaction& monitoring costs.
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3.2. Active Equity Allocation – Regional Allocation
Exchange rate risk is an important additional source of risk.
• Ex : if the exchange rate $/€ fall of 10% (the euro depreciates), it will harm that much the real return in $ of a portfolio libelled in €.
• Let : E0 = initial exchange rate $/€ (ex. 1$/€)• And : E1 = final exchange rate $/€ (ex. 0.9$/€)
• Then the $ denominated return of the portfolio is :
0
1)(1($)1E
EEurrr f
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3.2. Active Equity Allocation – Regional Allocation
• Currency risk hedging in portfolio management?– In equity portfolios (mutual funds): generally not.
Currency risk decision based on fundamental models and market consensus.
Decision on level of risk bearing.
– In bonds portfolios : sometimes. Some banks have only mono-currency bond portfolios.
– Individual portfolios : Hedging possibilities : forward and future markets, and options.
Rare in active management, better then to restrict oneself to one or few currencies, or to dilute in general diversification.
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3.2. Active Equity Allocation – Regional Allocation
EUR DKK SEK GBP USD CAD AUD JPY OTHER
BENCHMARK
PORTFOLIO
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3.2. Active Equity Allocation –Regional Allocation
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3.3. Active Equity Allocation – Sector Allocation
• Several classifications can be made for industries: – Cyclical & non-cyclical – Consumer goods & non consumer goods– Defensive – Technology – Growth.
• Each industry is affected by different parameters.
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3.3. Active Equity Allocation–Sector Allocation
• Examples : – Automobile sector (cyclical):
confidence of households (durable good - large impact on budget)
interest rates level (low is good)savings rate (good indicator of durable goods consumption if
declining) inflation rate (bad if high, due to reduced consumption power)public policies (premiums, technical control,..;)
– Food retail (defensive):confidence of households (linked to the level of spending) interest rates level (low is good, for some goods)unemployment rate (modifies the consumption behaviour) inflation rate (bad if high, due to reduced consumption power)
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3.3. Active Equity Allocation – Sector Allocation
• Pharmaceuticals (growth) – Regulation (stabilising factor)
– Product development (generics, product life cycle)
– Potential markets (life style of target population)
– Age of the population
• Which diversification is more powerful? Country or Sector ?– Usually, country diversification is larger that sector
diversification (Laurent, 2004).
– However, in some homogenous geographical zones - like the euro zone - sector diversification tends to get larger than countries.
– See illustrations
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3.3. Active Equity Allocation – Sector Allocation
Geographical diversification : Same sector (Pharma) in different zones : Europe and the US
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3.3. Active Equity Allocation – Sector Allocation
© 1999 Bloomberg L.P. All rights reserved© 1999 Bloomberg L.P. All rights reserved
Sector diversification : different sectors (Medical & Financial) in the same zone (US)
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3.3. Active Equity Allocation – Sector Allocation
© 1999 Bloomberg L.P. All rights reserved© 1999 Bloomberg L.P. All rights reserved
Country & Sector diversification : different sectors (Auto & Food) in the different zones (Europe and the US) : maximum effect
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3.2. Active Equity Allocation – Sector Allocation
• Diversification is maximum when country and sector diversification are combined;
• Each sector has specific dynamics, according to different economic parameters;
• Fundamental analysis helps identifying the overvalued and undervalued sectors
The portfolio is a combination of diversified assets, with overweigths in undervalued sectors, and underweights in overvalued ones.
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Example : “Middle of the Road” Mutual Fund
14%
16%
4%
11%
39%
9%7%
SHARESSHARES
FIXED INCOMEFIXED INCOME
BBL (L) Invest Utilities (IS)BBL (L) Invest Utilities (IS)BBL (L) Invest Banking & Insurance (IS)BBL (L) Invest Banking & Insurance (IS)BBL (L) Invest Healthcare (G)BBL (L) Invest Healthcare (G)BBL (L) Invest European Telecom (G)BBL (L) Invest European Telecom (G)BBL (L) Invest Nasdaq (G)BBL (L) Invest Nasdaq (G)BBL (L) Invest European Shopping (D)BBL (L) Invest European Shopping (D)BBL (L) Invest Chemicals (C)BBL (L) Invest Chemicals (C)BBL (L) Invest Energy (C)BBL (L) Invest Energy (C)
BBL Renta Fund EuroBBL Renta Fund EuroBBL Renta Fund Belgian Go. EuroBBL Renta Fund Belgian Go. EuroBBL Renta Fund Corporate EuroBBL Renta Fund Corporate EuroBBL Renta Fund GBPBBL Renta Fund GBPBBL Renta Fund Danske KroneBBL Renta Fund Danske KroneBBL Renta Fund DollarBBL Renta Fund DollarBBL Renta Fund AUDBBL Renta Fund AUD
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4. Revise the portfolio
• Or “Portfolio rebalancing” = Repetition/ Update of the three first steps, due to change in : – the investors constraints and objectives– the markets prospects for certain assets or sector – the transaction costs on certain markets– new investment opportunities– tax regulation– or, the passage of time (maturing bonds)
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4. Mixing Active and Passive Strategies
• Active and passive portfolio management can be mixed in one international portfolio.
– Ex : passive strategy on Far East and emerging markets and active strategy on US and European markets.
• In case of external shock, like the 1987 October crash, there is empirical evidence for a world factor, affecting all. But domestic factors dominate in normal conditions.
– Then, as far as portfolio modelling is concerned, the APT (like the multi-factor pricing model that satisfies the no arbitrage condition) seems better designed for use of international context than the CAPM.
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Integrating Active and Passive ManagementJournal of Portfolio Management, Fall 2000, pp 10-19.
How can a fund combine active and passive management to produce superior investment results?
The idea is to reconcile the two schools of active management, stating that (1) active managers should choose and actively manage securities within
each asset class; or on the contrary that (2) managers should passively manage securities within each asset class
and dedicate their time to higher level asset allocation decision.
Split of the allocation decisions between active and passive strategies according to three time horizons:
4. Mixing Active and Passive Strategies
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Strategic Allocation: the long-term anchor
• The active / passive allocation mix is dependant on the efficiency of each market segment.
• On balance, the allocation should favour passive and index strategies in most efficient segment.
• In less efficient segments, the allocation should incorporate more active strategies.
Strategic asset allocation should be a long term mix that is reviewed and adjusted on the margin perhaps every 3 years.
4. Mixing Active and Passive Strategies
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Tactical Allocation: the cyclical adjustment - around 3 years
• Active managers have performance cycles. They try to outperform by deviating from their benchmark using several levers : market timing (move to cash), style (growth vs. value stocks), capitalisation (small companies bias), sectors and stock selection.
• By understanding and modelling their performance cycle in function of their levers, active managers should be able to make tactical change in their active / passive allocation mix to increase their overall performance.
• The allocation should favor more active strategies during the parts of the cycle that are constructive for active management levers, and the other way round.
4. Mixing Active and Passive Strategies
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Dynamic Allocation: opportunistic risk control
• A dynamic asset allocation is a short-term shift around the longer-term anchor.
• Active/Passive dynamic investing is influenced by the risk tolerance of the investor.
• To control risk, active strategies can be transformed into passive strategies at predetermined thresholds.
A transition from active to passive for a particular manager or strategy could happen at most once a year.
4. Mixing Active and Passive Strategies
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5. Evaluate the Performance
• Four dimensions of performance evaluation : – In absolute terms (returns only):
Arithmetic averages (for expectations) Geometric averages (for past performance)
– Relative to risk: Risk/return ratios : Ex. Sharpe ratio : (rp - rf)/p
– Relative to a benchmark : Comparing with a portfolio of similar investment policy and
risk level (ex. market index) Ex. Information ratio : (rp - rb)/p
– Performance attribution : split performance into active management decisions.
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6. Market Efficiency
• Hypotheses to the Efficient Market Model : 1. All investors have costless access to currently available
information about the future;2. All investors are capable analysts;3. All investors pay close attention to market prices and
adjust their holding appropriately.
• Then :1. The Efficient Market will exist = one in which every
security’s price equals its investment value at all times.2. And : the set of information available will be fully reflected
in market prices.3. And : there is no way to book abnormal profit on such a
market, besides pure luck.
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6. Market Efficiency
• Three forms of efficiency: – Weak form : past information incorporated in the prices
– Semi-strong form : past and current public information incorporated in the prices
– Strong form : past and current public and private information incorporated in the prices
• Types of efficiency : – informational (here)
– organisational (effectiveness issue)
– competitive (margins et prices)
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6. Market Efficiency
• Consequences of market efficiency in terms of asset management : – Weak form of efficiency : technical analysis does not
lead to abnormal returns
– Semi-strong form of efficiency : fundamental analysis does not lead to abnormal returns
– Strong form of efficiency : insider trading does not lead to abnormal returns
• Overall consequence : active management cannot beat passive management of funds.
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6. Market Efficiency
• Concept check :
• What would happen to market efficiency if all investors attempted to follow a passive strategy?
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6. Market Efficiency
• Role of active management– Systemic level :
Keep markets efficient
Incorporate new information in prices
Exploit profit opportunities / Eliminate sources of efficiencies
– Microeconomic level : Adapt management to [risk / return] profile of investors
Include tax considerations
Large role of financial advice / financial engineering
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6. Market Efficiency
• Consequences on the performance of active portfolio management:– On average, underperformance of the managers
compared to benchmarks
– The surperformances do not always cover the transaction costs (2 x 80bp)
– No surperformance on several successive periods (occasional luck).