Chapter 7 Flashcards
What are the three main assumptions in EMH?
- a large number of profit-maximising participants
- new information comes in randomly
- participants no cognitive bias and price securities simply on new information
Why do efficient asset markets matter?
you can’t tell if a security is undervalued or overvalued without it
What is weak form efficient
current asset prices reflect all historical market information
What does the weak form EMH test?
whether publicly available information contained in historical prices is fully reflected in current prices
What is semi-strong form efficiency?
current prices reflect the same information in weak form
also, all public information
What does the semi-strong form efficiency test?
whether public information is fully reflected in current prices
What is strong form efficiency
current prices reflect all relevant information, including historical prices
What does the strong form efficiency test? (2)
whether all information (public and private) is fully compounded in market prices
and whether any type of investor can make excess profits
What kind of analysis may generate abnormal returns under weak EMH?
fundamental analysis
Why does fundamental analysis work in weak form EMH?
current prices may not reflect information about a public company
What kind of tests are used for weak form EMH?
random walk
zero correlation between past return and current return
Who have a knowledge advantage in semi-strong form EMH?
directors and other insiders that hold private information
What kind of studies are used to test semi-strong form efficiency? (3)
event studies
sample of firms that have an important announcement or event
then calculate abnormal return
What is the debate regarding strong form efficiency? (2)
markets efficient no room for active management
markets are inefficient and active management can generate alpha
Is there cyclicality between active and passive management? (2)
active strategies tend to outperform during market corrections
able to capture more upside during a recovery
Following a review of the EMH, what are the two main categories of tests of the EMH?
- price studies
- manager studies
What are the prices studies of EMH?
searching for trade rules that generate positive risk-adjusted returns when back-tested on historical data
What are the manager studies of EMH?
test the ability of active managers to generate risk-adjusted outperformance
What are the three anomalies in EMH?
- small firms outperform large firms
- evidence on mean reversion
- higher daily returns before a public holiday
What is the key belief in EMH?
markets are quick to process new information, so investors are
unable to gain an advantage over other investors.
Which is more market efficient large developed markets or small less developed markets? (3)
lage markets
more efficient
more analysts and news more available
What are the challengers to market efficiency? (3)
markets driven by human (irrational)
markets are structurally inefficient
many investors have consistently beaten the market i.e. warren buffett
What are the two ways of constructing a portfolio actively? ^ v
- top down
- bottom up
What is top down portfolio construction?
assessing macroeconomic factors that lead to a particular asset allocation
What is bottom-up portfolio construction?
focuses solely on the unique attractions of individual stocks
What is fundamental analysis?
examination of macro and micro economic metrics
estimating intrinsic value of companies
What is the aim of fundamental analysis? (3)
forecasting future profits
determining fair value
and potential for mispricing
What is technical analysis?
look at the pattern of price and volumes of market behaviour with a view to anticipating the overall direction of a market or individual securities
What is the intellectual justification for technical analysis? (2)
it’s based on behaviour of crowds
markets filled with people who behave the same way when faced with similar market conditions
What is quantitative analysis? (2)
using mathematical models to price products
then use that price to gauge whether share is expensive or cheap
How does quantitative analysis aim to exploit market inefficiency?
use computer technology to swiftly execute trades