Carry arbitrage model with and without underlying cash flows — MCQs

Meridian Advisory manages option overlays for private and institutional clients. Analyst Elena Park is reviewing European options on non-dividend-paying shares. All options in the analysis can be exercised only at expiration, and contracts used in a replication have identical strikes and expiration dates. Markets are assumed to be frictionless, borrowing and lending are available at the stated risk-free rate, and no arbitrage opportunities can persist. Park first evaluates a quoted European call and determines the corresponding no-arbitrage put value. She applies put–call parity using the present value of the strike price because the exercise payment occurs at expiration. The market information required for this calculation appears in Exhibit 1. A second assignment requires Park to construct a synthetic forward position. She recalls that the combination must reproduce the forward's linear expiration payoff rather than merely provide exposure to volatility. The options used for this position have the same strike and expiration. Client 1's required direction of exposure is stated in Exhibit 3. Park next values a European call using a one-period binomial model. The stock has only two possible prices at the end of the period, and the up and down factors are obtained directly from the terminal prices relative to the current stock price. She calculates a risk-neutral probability using the one-period risk-free gross return and discounts the risk-neutral expected option payoff at the risk-free rate. The stock pays no dividends during the period. Exhibit 2 contains all required model inputs. Finally, Park advises Client 2, who already owns the underlying shares. The client is concerned about a material decline but does not want to surrender gains if the share price appreciates. The client accepts the payment of an option premium to obtain asymmetric protection. Park considers a protective put, a covered call, and liquidation of the shares. The client's objective, rather than Park's directional market forecast, governs the strategy recommendation.

Northbridge Opportunities Fund holds concentrated positions in publicly traded equities and uses European options for valuation-consistent hedging and return modification. Portfolio manager Elena Park asks an analyst to assess option values and strategies under no-arbitrage assumptions. All contracts cover one share, the underlying shares pay no dividends during the stated periods, and there are no transaction costs, taxes, or exercise restrictions beyond the European exercise terms. For the first analysis, Park provides prices for a European call and the associated underlying share. A European put has the same exercise price and expiration date, but its market price is temporarily unavailable. The analyst is instructed to infer the put price from put–call parity using simple-interest discounting. The annual risk-free rate and six-month maturity are specified in Exhibit 1. Park then considers a separate one-period European call. At the end of the period, the share will be worth either USD 120 or USD 90. The exercise price is USD 100, and the risk-free gross return over the period is 1.02. The analyst may use either a replicating portfolio or risk-neutral valuation. The physical probabilities of the two share-price outcomes are unknown and are not required for no-arbitrage valuation. Short selling and borrowing are permitted. In addition to valuation, Park evaluates three strategies shown in Exhibit 2. For one existing share position, the fund wishes to establish a minimum expiration-date sale price but remain able to participate in appreciation above the current share price. For a second position, the fund would accept limited upside in exchange for current premium income. Park also identifies a possible volatility trade for a security expected to experience a substantial price movement, although the direction of that movement is uncertain. The options are assumed to remain outstanding until expiration. References to a strategy's expiration payoff exclude initial premiums unless the question explicitly requests profit. The covered-call premium is received when the strategy is established, whereas premiums for purchased options are paid at initiation.

A commodity has a USD 80 spot price, a 5% continuously compounded risk-free rate, 2% storage costs, and a 1% convenience yield. The calculated value of its one-year forward price is closest to:

A commodity has a spot price of USD 80, a 6% continuously compounded risk-free rate, a 1% convenience yield, and no income. Storage of USD 2 is payable at the nine-month forward's expiration. The calculated value of the no-arbitrage forward price is closest to:

Lydon Securities is reviewing option positions for its proprietary portfolio and for a private client who already owns Lydon common stock. The firm's policy requires analysts to use no-arbitrage valuation methods and to distinguish an option's expiration payoff from its current value. Unless otherwise stated, options are European, transaction costs and taxes are ignored, and borrowing and lending occur at the stated risk-free rate. The first analysis concerns six-month European calls and puts on a non-dividend-paying stock. Exhibit 1 provides the stock price, exercise price, risk-free rate, and observed call price. The call and put have identical exercise prices and expiration dates. Analyst Priya Shah plans to infer the put price using a position in the stock and a risk-free zero-coupon bond rather than relying on a directional forecast for the stock. The risk-free rate is continuously compounded. Shah next values a different European call using the one-period binomial model. Exhibit 2 provides the current stock price, the two possible expiration-date stock prices, the exercise price, and the risk-free gross return for the period. The model assumes the stock has only the stated up and down outcomes, no dividends are paid, and there are no arbitrage opportunities. Shah will first determine the call's state-contingent payoffs and then identify the stock position and risk-free borrowing or lending position that reproduce those payoffs. She will also verify the result using risk-neutral valuation. The risk-neutral probability must be inferred from the stock prices and the risk-free gross return; it is not an estimate of the stock's actual probability of increasing. The private client owns 10,000 Lydon shares and expects the price to remain close to its current level during the next three months. The client's objective and constraints are summarized in Exhibit 3. The client wants to retain legal ownership unless the shares rise to a predetermined sale price and is comfortable delivering the shares at that price. The client does not want a strategy that creates an obligation to acquire additional shares if the stock price declines. The adviser is considering calls and puts with three months to expiration and recognizes that option premiums received at initiation affect strategy profit even though they are not part of the option's expiration payoff. Each analysis is independent. The data in Exhibit 1 apply only to the parity analysis, the data in Exhibit 2 apply only to the binomial analysis, and Exhibit 3 governs the strategy recommendation.

A USD 25 million bond portfolio has duration 6.80. Bond futures have duration 5.90, a price of 118, and a USD 1,000 multiplier. To reduce portfolio duration to 4.50, the required position is closest to:

Gold has a spot price of USD 75.00 per gram, annual storage costs paid at year-end of USD 1.50 per gram, and a 3.00% annual effective risk-free rate. With no income or convenience yield, the one-year forward price is closest to:

A non-dividend-paying stock is USD 60. A one-year forward entered at USD 58 expires today when the stock is USD 63. The long's payoff is closest to: