FIN-3403 Lecture Notes - Lecture 12: United States Treasury Security, Risk Premium, Systematic Risk

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5 Apr 2018
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Variability of returns: risk is the amount of uncertainty in outcome from an investment. Risk premiums: reward for bearing risk, difference between the return on a risky investment and the risk-free rate, t-bill rate is most frequently used as the risk-free return to calculate risk premiums. Portfolio: a collection of assets held by an investor. Expected return: best guess of what will happen in the future based on possibilities. Expected risk premium: = e(r) e(rf) Expected and unexpected rule: announcement, release of information, news, release of information not previously available, total return= expected return + unexpected return. Efficient capital market/efficient market hypothesis: market where prices fully reflect available information. How could we test emh: rea(cid:272)tio(cid:374) of (cid:373)arket to (cid:272)ha(cid:374)ges i(cid:374) sto(cid:272)k pi(cid:272)ks (cid:271)y a (cid:271)rokerage fir(cid:373)"s a(cid:374)alyst, reaction of market to favorable or unfavorable earnings announcement. The security market line: all of the risk-return combinations lie on a straight line, portfolio weight x beta= portfolio beta.

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