chapter 10 Flashcards
(25 cards)
two key lessons from capital market history
- there is a reward for bearing risk
- the greater the reward, the greater the risk
total dollar return
return on an investment measured in dollars
dollar return =
dividends + capital gains
capital gains =
price received - price paid
total percent return
return on an investment measured as a percentage of the original investment
percent return =
dollar return / dollar invested
historical average return
arithmetic, or simple, average
risk-free rate
rate of return on a riskless investment (treasury bills)
risk premium
excess return on a risky asset over risk-free rate
- the reward for bearing risk
variance
common measure of return dispersion (variability)
standard deviation
square root of variance (volatility)
which stocks have the highest historical average standard deviation and mean?
small company stocks
efficient capital market
market in which security prices reflect available information
efficient markets hypothesis
the hypothesis that actual capital markets, such as the NY stock exchange, are efficient
- stock prices are in equilibrium
- stocks are fairly priced
- informational efficiency
important implication for efficient market
all investments are zero NPV investments
efficient markets do not imply that
investors cannot earn a positive return in the stock market
what makes a market efficient
competition among investors
forms of market efficiency
strong form efficient market
semistrong form efficient market
weak form efficient market
strong form efficient market
all information of every kind is reflected in stock prices, no such thing as inside information
semistrong efficient market
all public info is reflected in stock price, fundamental analysis is of little use
most controversial market
semistrong, implies that security analysts who try to identify mispriced stocks are wasting their time
weak form efficient market
current stock price reflects its own past prices, technical analysis (searching for patterns) is of little use
according to strong form efficiency, investors cannot
earn abnormal returns regardless of the info they possess
empirical evidence indicates that
markets are generally weak form efficient and not strong form efficient