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Passive versus Active Management

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Title: Passive versus Active Management


1
Passive versus Active Management
  • Passive equity portfolio management
  • Long-term buy-and-hold strategy
  • Usually tracks an index over time
  • Designed to match market performance
  • Manager is judged on how well they track the
    target index
  • Active equity portfolio management
  • Attempts to outperform a passive benchmark
    portfolio on a risk-adjusted basis

2
An Overview of Passive Equity Portfolio
Management Strategies
  • Replicate the performance of an index
  • May slightly underperform the target index due to
    fees and commissions
  • Costs of active management (1 to 2 percent) are
    hard to overcome in risk-adjusted performance
  • Many different market indexes are used for
    tracking portfolios

3
Index Portfolio Construction Techniques
  • Full replication
  • Sampling
  • Quadratic optimization or programming

4
Full Replication
  • All securities in the index are purchased in
    proportion to weights in the index
  • This helps ensure close tracking
  • Increases transaction costs, particularly with
    dividend reinvestment

5
Sampling
  • Buys a representative sample of stocks in the
    benchmark index according to their weights in the
    index
  • Fewer stocks means lower commissions
  • Reinvestment of dividends is less difficult
  • Will not track the index as closely, so there
    will be some tracking error

6
Expected Tracking Error Between the SP 500 Index
and Portfolio Comprised of Samples of Less Than
500 Stocks
Expected Tracking Error (Percent)
Exhibit 16.2
4.0
3.0
2.0
1.0
500
400
300
200
100
0
Number of Stocks
7
Quadratic Optimization (or programming
techniques)
  • Historical information on price changes and
    correlations between securities are input into a
    computer program that determines the composition
    of a portfolio that will minimize tracking error
    with the benchmark
  • This relies on historical correlations, which may
    change over time, leading to failure to track the
    index

8
Methods of Index Portfolio Investing
  • Index Funds
  • Attempt to replicate a benchmark index
  • Exchange-Traded Funds
  • EFTs are depository receipts that give investors
    a pro rata claim on the capital gains and cash
    flows of the securities that are held in deposit
    by a financial institution that issued the
    certificates

9
An Overview of Active Equity Portfolio Management
Strategies
  • Goal is to earn a portfolio return that exceeds
    the return of a passive benchmark portfolio, net
    of transaction costs, on a risk-adjusted basis
  • Practical difficulties of active manager
  • Transactions costs must be offset
  • Risk can exceed passive benchmark

10
Fundamental Strategies
  • Top-down versus bottom-up approaches
  • Asset and sector rotation strategies

11
Sector Rotation
  • Position a portfolio to take advantage of the
    markets next move
  • Screening can be based on various stock
    characteristics
  • Value
  • Growth
  • P/E
  • Capitalization
  • Sensitivity to economic variables

12
Technical Strategies
  • Contrarian investment strategy
  • Price momentum strategy
  • Earnings momentum strategy

13
Anomalies and Attributes
  • The Weekend Effect
  • The January Effect
  • Firm Size
  • P/E and P/BV ratios

14
Miscellaneous Issues
  • Selection of an appropriate benchmark
  • Issues pertaining to the benchmark
  • Use of computer screening and other
    quantitatively based methods of evaluating stocks
  • Factor models
  • The long-short approach to investing

15
Value versus Growth
  • Growth stocks will outperform value stocks for a
    time and then the opposite occurs
  • Over time value stocks have offered somewhat
    higher returns than growth stocks

16
Value versus Growth
  • Growth-oriented investor will
  • focus on EPS and its economic determinants
  • look for companies expected to have rapid EPS
    growth
  • assumes constant P/E ratio

17
Value versus Growth
  • Value-oriented investor will
  • focus on the price component
  • not care much about current earnings
  • assume the P/E ratio is below its natural level

18
Style
  • Construct a portfolio to capture one or more of
    the characteristics of equity securities
  • Small-capitalization stocks, low-P/E stocks, etc
  • Value stocks appear to be underpriced
  • price/book or price/earnings
  • Growth stocks enjoy above-average earnings per
    share increases

19
Does Style Matter?
  • Choice to align with investment style
    communicates information to clients
  • Determining style is useful in measuring
    performance relative to a benchmark
  • Style identification allows an investor to
    diversify by portfolio
  • Style investing allows control of the total
    portfolio to be shared between the investment
    managers and a sponsor

20
Determining Style
  • Style grid
  • firm size (large cap, mid cap, small cap)
  • Relative value (value, blend, growth)
    characteristics
  • Style analysis
  • constrained least squares

21
Benchmark Portfolios
  • Sharpe
  • T-bills, intermediate-term government bonds,
    long-term government bonds, corporate bonds,
    mortgage related securities, large-capitalization
    value stocks, large-capitalization growth stocks,
    medium-capitalization stocks, small-capitalization
    stocks, non-U.S. bonds, European stocks, and
    Japanese stocks

22
Benchmark Portfolios
  • Sharpe
  • BARRA
  • Uses portfolios formed around 13 different
    security characteristics, including variability
    in markets, past firm success, firm size, trading
    activity, growth orientation, earnings-to-price
    ratio, book-to-price ratio, earnings variability,
    financial leverage, foreign income, labor
    intensity, yield, and low capitalization

23
Benchmark Portfolios
  • Sharpe
  • BARRA
  • Ibbotson Associates
  • simplest style model uses portfolios formed
    around five different characteristics cash
    (T-bills), large-capitalization growth,
    small-capitalization growth, large-capitalization
    value, and small-capitalization value

24
Timing Between Styles
  • Variations in returns among mutual funds are
    largely attributable to differences in styles
  • Different styles tend to move at different times
    in the business cycle

25
Asset Allocation Strategies
  • Integrated asset allocation
  • capital market conditions
  • investors objectives and constraints
  • Strategic asset allocation
  • constant-mix
  • Tactical asset allocation
  • mean reversion
  • inherently contrarian
  • Insured asset allocation
  • constant proportion

26
Asset Allocation Strategies
  • Selecting an allocation method depends on
  • Perceptions of variability in the clients
    objectives and constraints
  • Perceived relationship between the past and
    future capital market conditions
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