Learn how to layer various types of active management strategies on top of a passive market portfolio. Professor Slezak outlines three primary strategies: timing the market, reallocating money across sectors, and picking stocks that may outperform their sector. He also describes shorting and arbitrage.
Review concepts from probability and statistics that are essential to know in investing. Focus on formulas that measure three characteristics of an asset: its expected return, its return variance (or volatility), and the covariance (or correlation) of its return with the returns on other assets.
Is it possible to make money by actively trading in the market? According to the efficient markets hypothesis, you are better off as a passive investor, because prices almost always reflect true value. Explore three versions of this theory, including the weak form, which holds that prices follow what is called a random walk.
Continue your study of the efficient markets hypothesis by investigating data from actual markets. Focus on momentum phenomena and volatility anomalies as possible evidence of market inefficiencies. Are these real opportunities to beat the market or only illusions that snare overconfident investors?
Investigate bond pricing, which compared to stock pricing is beautifully predictable—if complex. Understand why interest rates vary across different bonds. Practice calculating the bond price for a given rate. Then take the price as given, and determine the yield to maturity.
At a given moment, interest rates vary with the time to maturity of different bonds. Examine the yield curve and the term structure of interest rates, learning how to weigh your investment choices. Discover that bond prices are a window to the expected future performance of the market.
Get an intuitive feel for the features that raise or lower interest rate risk on bonds. Practice calculating duration, and discover that the time to maturity may not be particularly close to the duration of a bond. This underscores the importance of focusing on the duration of your bond investments.
Study the characteristics of an equilibrium asset pricing model. Then build the most popular version—the capital asset pricing model (CAPM)—which allows you to measure risk for a portfolio. According to CAPM, the cross- section of returns is driven by common risks that cannot be eliminated through diversification.
How do you know if an actively managed portfolio is producing worthwhile results? Survey several performance metrics: the Sharpe ratio, the Treynor measure, Jensen’s alpha, the M-squared measure, and the information ratio. The measure you need depends on how you are using the portfolio you are evaluating.
Investigate two uses for options: speculation and hedging. Follow the steps for betting on the direction of movement in the price of a security. Then see that hedging is less risky and can be compared to buying insurance. Learn that the important variables in a hedge are the hedge ratio and the option delta.
Continue your study of derivatives by looking at the two most popular strategies for pricing options: the binomial method and the revolutionary Black-Scholes formula. The key insight of these pricing models is that you can build structures out of existing securities that behave just like the underlying option.
Return to the capital asset pricing model introduced in Lecture 17, evaluating its effectiveness. Then analyze alternatives to CAPM along with anomalies that are at odds with existing models. Close by putting the course into perspective, stressing the wisdom and profit of trusting the market in the long term.