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Economics 434 Theory of Financial Markets. Professor Edwin T Burton Economics Department The University of Virginia. Final Exam…Tuesday, December 13, 2011. The “No-Arbitrage” Principle. Does not require “equilibrium Means Cannot make something out of nothing
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Economics 434Theory of Financial Markets Professor Edwin T Burton Economics Department The University of Virginia
The “No-Arbitrage” Principle • Does not require “equilibrium • Means • Cannot make something out of nothing • Cannot make an infinite amount out of a finite investment
Three Main Types of Derivatives • Options • Futures (Forwards) • Swaps
Options Definition Right to buy (sell) 100 shares of stock at a fixed price by a fixed date Option to buy is a “call” option Option to sell is a “put” option
Common Option Terms • Exercise Price (or “strike” price) • Maturity (or “expiration” date) • Premium (or price) • Volatility (Variance of Stock Price)
Value at Maturity Jul 40 Calls Expire 3rd Friday Value Worthless Below 40 Dollar for dollar 40 Price of the “Underlying” Stock
Value of Call Option at Expiration The Jul 40 Call Option 20 0 40 60
Value of Jul 40 Put Option at Expiration 40 0 40 0
Value If time to expiration increases “Delta” at the strike is 1/2 Price of Stock
“Delta” How much option price increases for 1 point increase in stock price Actually a “derivative” of the option price with respect to a change in the stock price
Futures • Different Method of Paying • Delayed Settlement • Like buying a house
Two Main Types of Futures(Depending Upon Settlement) • At maturity, futures owners get something • Either get actual commodity • Or, get “cash equivalent”
Settlement (in the “underlying”) • You get • Cattle, Gold, Silver, Yen • Whatever (?) • Exact amount as specified in “contract” regardless of price • Pay the original price of the futures contract
Imagine Gold • Imagine gold at $ 1600, with risk free rate at 5 % • 100 ounces in futures contract means $ 1600 times 100 ounces = $ 160,000 • If current gold price is $ 1600, what is the three month futures price • Carry cost is 5 % times $ 1600 times ¼ = $ 20.00 • Answer would be $ 1,620.00 • But, what about storage cost • If the future is $ 1626, then storage costs are $ 2.00 per three month, or $ 24 per year
Settlement in “cash” • S&P 500 Futures • Most Stock Index Futures
First, What is the S&P 500 Future? • 500 Stocks • Weighted by Market Capitalization • Futures: Jun, Sep, Dec, Mch
Futures are “marked to market” • Every single day • If you can’t pay, they liquidate • No exceptions • Futures trade with limits • So, you can get locked into to an infinite loss
Final Exam • Readings • Financial Market Theory, pp. 1-206 (which means not all of the Derivatives chapter…only up to but not including “treasury bond futures” • This Time is Different, Chapters 5, 13, 14 • Coverage • Fixed Income, MPT, Leverage, Options & Futures • All classes, powerpoint slides, readings