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Lecture 7: The Forward Exchange Market PowerPoint Presentation

Lecture 7: The Forward Exchange Market

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### Lecture 7: The Forward Exchange Market

### Appendix A Rate

Determining the Appropriate Forward Exchange Quote

How do Market Makers Determine the Forward Exchange Rate? River So what determines the forward rate?

- The quoted forward rate is not a reflection of where market makers think the spot exchange rate will be on that forward date .
- Lloyds Bank, UK (Corporate Banking and Treasury Training Publication) : “Forward rates .. are not the dealer's [i.e., market maker bank’s] opinion of where the spot rate will be at the end of the period quoted.”

- Quick answer: Interest rate differentials between currencies being quoted, or the Interest Rate Parity Model.
- To develop this concept, and the Interest Rate Parity Model, we will work through the following example.

Thinking About Cross Border Investing River

- Assume a U.S. investor has $1 million to invest for 1 year and can select from either of the following 1 year investments:
- (1) Invest in a U.S. government bond and earn 2.0% p.a.
- (2) Invest in an Australian government bond and earn 5.5% p.a.

- If the U.S. investor invests in Australian government bonds, he/she will receive a known amount of Australian dollars in 1 year when the bond matures.
- Principal repayment and interest payment both in AUD.

Risk of Investing Cross Border River

- Question: Using the previous example, what is the risk for the U.S. investor if he/she buys the 1 year Australian government bond?
- Answer: The risk associated with foreign exchange exposure in AUD.
- The U.S. investor will be paid a specified amount of Australian dollars 1 year from now:
- The risk is the uncertainty about the Australian dollar spot rate 1year from now.

- If the Australian dollar (spot) weakens, the U.S. investor will receive fewer U.S. dollars at maturity:
- Example: If the Australian dollar weakened by 2% by the end of the year, this reduces the return on the Australian investment (from 5.5 % to 3.5%).

Solution to The Currency Risk for the U.S. Investor River

- Question: Using the previous example, how could the U.S. investor manage the risk associated with this Australian dollar exposure?
- Solution: The US investor can cover the Australian dollar investment by selling Australian dollars 1 year forward.
- Australian dollar amount which the investor will sell forward would be equal to the principal repayment plus earned interest (Note: this was the known amount of AUD to be received in 1 year).

Calculating the U.S. Dollar Equivalent of the Maturing AUD Government Bond when Covered

- Assume:
- A 1 year Australian Government Bond with a par value of 1,000AUD (assume you purchased 100 of these at par)
- Assume an annual coupon of 5.5% (payable at the end of the year)
- Assume the following market maker bank quoted exchange rates:
- AUD/USD spot 1.0005/1.0009
- AUD/USD 1 year forward 0.9650/0.9657

- Calculate the USD covered amount when the bond matures:
______________________

Answer: U.S. Dollar Equivalent of the Maturing AUD Government Bond

- Amount of AUD to be received in 1 year from maturing bonds:
- Par value = AUD1,000 x 100 = AUD100,000
- Interest (5.5% coupon) = 100,000 x 0.055 = AUD5,500
- Total received = AUD105,500 (to be sold forward)
- Exchange rates:
- AUD/USD spot 1.0005/1.0009
- AUD/USD 1 year forward 0.9650/0.9657

- USD covered amount (to be received in 1 year) = AUD105,500 x 0.9650 = USD101,807.50

Concept of Covered Return Government Bond

- The covered return (i.e., hedged return) on a cross border investment is the return after the investment’s foreign exchange risk has been covered with the appropriate forward contract.
- The forward exchange rate will determine the “covered” investment return for the U.S. investor.
- In the previous example, how would you determine the covered return to the U.S. investor?

Calculating the Covered Return Government Bond

- Answer: Calculate the yield to maturity on the investment when covered.
- Note: Yield to Maturity is the internal rate of return (IRR), which is the discount rate that sets the present value of the future cash inflow to the price of the investment.
- USD Purchase Price = AUD100,000 x 1.0009 = USD100,090
- USD Hedged Equivalent Cash Inflow in 1 year = USD101,807.50
- Solve for the IRR (k): -100,090 = 101,807.50/(1+k)
- http://www.datadynamica.com/IRR.asp

- k = 1.72% (Why is this different from the 5.5%)
- Answer: Because AUD is selling at a 1 year forward discount.

Another Example of a Covered Return Government Bond

- Assume the following:
- A 1 year Japanese Government Bond with a coupon of 1%.
- Par value of 100,000 yen and selling at par.
- Exchange Rates:
- USD/JPY spot: 76.61/76.65
- 1 year forward: 73.50/73.55

- Calculate the covered return for a U.S. investor on the above JGB

Answer to JGB Covered Return Government Bond

- Step 1: Calculate the USD purchasing price of the JGB:
- 100,000/76.61 (note this is spot bid) = 1305.31

- Step 2: Calculate the yen inflow expected in 1 year:
- 100,000 x 1.01 = 101,000 (note: coupon rate is 1%)

- Step 3: Calculate the USD equivalent of the 1 year yen inflow using a forward contract.
- 101,000/73.55 = 1373.22 (note this is 1 year ask)

- Step 4: Calculate the IRR (using the web site)
- -1305.31= 1373.22/(1+k); k = 5.21% (Why is this different from the 1%)

Covered Interest Arbitrage Government Bond

- Covered interest “arbitrage” is a situation that occurs when a covered return offers a higher return than that in the investor’s home market.
- As an example assume:
- 1 year interest rate in U.S. is 4%
- 1 year interest rate in Australia is 7%
- AUD 1 year forward rate is quoted at a discount of 2%.

- In this case, a U.S. investor could invest in Australia and
- Cover (sell Australian dollars forward) and earn a covered return of 5% (7% - 2%) which is 100 basis points greater than the U.S. return

- This is covered interest arbitrage: earning more (when covering) than the rate at home.

Explanation for Covered Interest Arbitrage Opportunities Government Bond

- Covered interest arbitrage will exist whenever the quoted forward exchange rate is not priced correctly.
- If the forward rate is priced correctly, covered interest arbitrage should not exist.
- Going back to our original example:
- (1) Invest in a U.S. government bond and earn 2.0%.
- (2) Invest in an Australian government bond and earn 5.5%

- If the AUD 1 year forward were quoted at a discount of 3.5%, then the covered return (2%) and the home return (2%) would be equal.

The Appropriate Forward Exchange Rate and the Interest Rate Parity Model

- The Interest Rate Parity Model (IRP) offers an explanation of the market’s correctly priced (i.e., “equilibrium”) forward exchange rate.
- This equilibrium rate is the forward rate that precludes covered interest arbitrage

- The Interest Rate Parity Model states:
- “That in equilibrium the forward rate on a currency will be equal to, but opposite in sign to, the differencein the interest rates associated with the two currencies in the forward transaction.”

- Thus, the equilibriumforward rate is whatever forward exchange rate willinsure that the two cross border investments will yield similar returns when covered.

Test of the Interest Rate Parity Model: 1974-1992 Parity Model

Interest Rate Parity Model, 2004 Parity Model

IRP Today: September 28, 2011 Parity Model

IRP Today: September 28, 2011 Parity Model

IRP Today: September 28, 2011 Parity Model

How is the Forward Rate Calculated? Parity Model

- Market maker banks calculate their quoted forward rate is calculated from three observable elements:
- The (current) spot rate.
- A foreign currency interest rate.
- A home currency interest rate (assume to be the U.S.).

- Note: The maturities of the interest rates used should be approximately equal to the calculated forward rate period (i.e., maturity of the forward contract).
- What interest rates are used?
- Interbank market (wholesale) interest rates for currencies (euro-deposit rates). Large global banks continuously quote each other and clients market interest rates in a range of currencies.

Forward Rate Formula for European Terms Quote Currencies Parity Model

- The formula for the calculation of the equilibrium European terms forward foreign exchange rate is as follows:
- FTet = Set x [(1 + INTf) / (1 + INTus)]
- Where:
- FTet = forward foreign exchange rate at time period T, expressed as units of foreign currency per 1 U.S. dollar; thus European terms, i.e., “et”
- Set = today's European terms spot foreign exchange rate,
- INTf = foreign interest rate for a maturity of time period T (expressed as a percent, e.g., 1% = 0.01)
- INTus = U.S. interest rate for a maturity of time period T

Example: Solving for the Forward European Terms Exchange Rate

- Assume the following data:
- USD/JPY spot = ¥120.00
- Japanese yen 1 year interest rate = 1%
- US dollar 1 year interest rate = 4%

- Calculate the 1 year yen forward exchange rate:
- Set up the formula and insert data.

Example: Solving for the Forward European Terms Exchange Rate

- Assume the following data:
- USD/JPY spot = ¥120.00
- Japanese yen 1 year interest rate = 1%
- US dollar 1 year interest rate = 4%

- Calculate the 1 year yen forward exchange rate:
- FTet = Set x [(1 + INTf) / (1 + INTus)]
- FTet = ¥120 x [(1 + .01) / (1 + .04)]
- FTet = ¥120 x .971153846
- FTet = ¥116.5384615

Forward Rate Formula for American Terms Quote Currencies Rate

- The formula for the calculation of the equilibrium American terms forward foreign exchange rate is as follows:
- FTat = Sat x [(1 + INTus) / (1 + INTf)]
- Where:
- FTat = forward foreign exchange rate at time period T, expressed as the amount of 1 U.S. dollars per 1 unit of the foreign currency; thus American terms, or at)
- Sat = today's American terms spot foreign exchange rate.
- INTus = U.S. interest rate for a maturity of time period T (expressed as a percent, e.g., 4% = 0.04)
- INTf = Foreign interest rate for a maturity of time period T

Example: Solving for the American Terms Forward Exchange Rate

- Assume the following data:
- GPB/USD spot = $1.9800
- UK 1 year interest rate = 6%
- US dollar 1 year interest rate = 4%

- Calculate the 1 year pound forward exchange rate:
- Set up the formula and insert data:

Example: Solving for the American Terms Forward Exchange Rate

- Assume the following data:
- GPB/USD spot = $1.9800
- UK 1 year interest rate = 6%
- US dollar 1 year interest rate = 4%

- Calculate the 1 year pound forward exchange rate:
- FTat = Sat x [(1 + INTus) / (1 + INTf)]
- FTat = $1.9800 x [(1 + .04) / (1 + .06)]
- FTat= $1.9800 x .9811
- FTat = $1.9426

Calculating the forward rate for periods less than and greater than one year

Formulas and Interest Rates Rate

- The formulas used in the previous slides show you how to calculate the forward exchange rate 1 year forward.
- The following slides illustrate how to adjust the forward rate formula for periods other than 1 year.
- Important:
- All interest rates quoted in financial markets are on an annual basis, thus and adjustment must be made to allow for other than annual interest periods.

Forwards Less Than 1 Year: European Terms Rate

- FTet = Set x [(1 + ((INTf) x n/360)) / (1 + ((INTus) x n/360))]
- Where:
- FT = forward foreign exchange rate at time period T, expressed as units of foreign currency per 1 U.S. dollar;
- Set = today's European terms spot foreign exchange rate.
- INTf = foreign interest rate for a maturity of time period T
- INTus = U.S. interest rate for a maturity of time period T
- n = number of days in the forward contract (note: we use a 360 day year in this formula).

- Note: What we have added to the original formula is an adjustment for the time period (n/360)

European Terms Example: Less than 1 year Rate

- Assume:
USD/JPY spot = 82.00

6 month Japanese interest rate = 0.12%*

6 month U.S. interest interest rate= 0.17%*

*These are interest rates expressed on an annual basis.

- Calculate the 6 month forward yen
- FTet = Set x [(1 + ((INTf) x n/360))/ (1 + ((INTus) x n/360))]
Ftet = 82.00 x [(1 + ((0.0012 x 180/360))/((1 + ((0.0017 x 180/360))]

FTet = 82.00 x (1.0006/1.00085)

FTet = 82.00 x .9997

FTet= 81.9795

Forwards More Than 1 Year: American Terms Rate

- FTat = Sat x [(1 + (INTus)n / (1 + (INTf)n]
- Where:
- FT = forward foreign exchange rate at time period T, expressed as the amount of 1 U.S. dollars per 1 unit of the foreign currency.
- Sat = today's American terms spot foreign exchange rate.
- INTus = U.S. interest rate for a maturity of time period T
- INTf = Foreign interest rate for a maturity of time period T
- n = number of years in the forward contract.

American Terms Example: More than 1 Year Rate

- Assume:
GBP/USD spot = 1.5800

5 year United Kingdom interest rate = 1.05%*

5 year United States interest rate = 1.07%*

*These are interest rates expressed on an annual basis.

- Calculate the 5 year forward pound:
FTat = Sat x ((1 + INTus)n/(1 + INTf)n)

FTat = 1.5800 x ((1 + 0.0107)5/(1 + 0.0105)5)

FTat = 1.5800 x (1.05466/1.05361)

FTat = 1.5800 x 1.001

FTat = 1.5816 (Note: This is the forward 5 year rate)

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