赫尔《期权、期货及其他衍生产品》(第8版)复习笔记及课后习题详解 (87).docx

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1、EXTRAPROBLEMSNewto8thEdition1. InJuly,asmallchocolatefactoryreceivesalargeorderforchocolatebarstobedeliveredinNovember.ThespotpriceforCocoais$2,400permetricton.Itwillneed10metrictonsofCocoainSeptembertofillthisorder.Becauseoflimitedstoragecapacityandvolatilityintheworldcocoaprices,thecompanydecidest

2、hebeststrategyistobuy10calloptionsfor$53eachwithstrikepriceof$2,400(equaltothecurrentprice)withamaturitydateofSeptember2012.WhentheoptionsexpireinSeptember,howmuchwillthecompanypay(includingthecostoftheoptions)forcocoaifthespotpriceinSeptemberprovestobe:a)$2,300,andb)$2,600?($23,530,$24,530)2. Atrad

3、erinvestsinFacebookbybuying1000sharesinJunefor$27pershare.Shealsobuys1000putoptionsfor$5eachasinsuranceincasethestockdropssharply.Theputoptionshaveastrikepriceof$27andamaturitydateofDecember.WhatisthegainorlossifthespotpriceonDecemberis:a)$20,b)$27,c)$32andd)$37?($5,000loss,$5,000loss,$0,$5,000gain)

4、3. ThespotpriceforGooglestockis$578onJune6.Atraderconsiderstwoalternatives:buy100sharesofthestock,orbuy100EuropeancalloptionsonGooglefor$38eachwithastrikepriceof$575andmaturitydateofSeptember2012.Foreachalternative,whatis:a)theupfrontcost?b)thetotalgainifthestockpriceatmaturityis$650?c)thetotallossi

5、fthestockpriceis$500atmaturity?($57,800and$3,800;$7,200and$3,700;-S7,800and-$3,800)4. Atradertakesthelongpositionandahedgefundtakesashortpositiononten1-monthS&P500futurescontractsat1300.AsingleS&P500futurescontractequals($250)x(IndexValue).Theinitialmarginis$325,000andthemaintenancemarginis$245,000f

6、orbothaccounts.Tentradingdayslater,thefuturespriceoftheindexdropsto1,260triggeringamargincallforthetrader.Whatisthechangemarginaccountbalance(indicategainorloss)for:a)thetraderandb)thehedgefund?Whatisthemargincallforthetrader?(trader:$100,000loss,hedgefund:$100,000gain,margincall:$100,000)5. Aspecul

7、atorsellsaJuly2013wheatfuturescontractat721centsperbushel.Eachfuturescontractisfor5,000bushels.Thefuturespricedropsto676onDecember31,2012andrisesto712inMay2013whensheclosesthecontract.Whatisthegainorlossforaccountingpurposesin2013?($180,000loss)6. InDecember2011,acompanyexpectstobuy100,000MMBtuofnat

8、uralgasbeforetheendofMarch2012,butdoesnotknowexactlywhen.Tohedgeagainstvolatilegasprices,itimplementsarollingforwardhedgebytakingalongpositionon10twomonthnaturalgasfutures(onlyheldfor1month).Onefuturescontractisfor10,000MMBtuandisquotedin$perMMBtu.ThecommodityispurchasedinMarch2012.Whatistotaldollar

9、gain/lossfromtherollinghedge?Assumeahedgeratioof0.8.($84,000loss)DateDec2011Jan2012Feb2012Mar2012Feb2012FuturesPrice3.653.00-Mar2012FuturesPrice-2.952.70-Apr2012FuturesPrice-2.652.50SpotPrice3.672.507. Atraderowns55,000troyOZofsilveranddecidestohedgewith6-monthsilverfuturescontracts.Eachfuturescontr

10、actison5,000troyoz.Thestandarddeviationofthechangeinthespotpriceofsilveris0.43.Thestandarddeviationofthechangeinsilverfuturespricesis0.40.Thecoefficientofcorrelationbetweenthetwois0.95.a. Whatistheminimumvariancehedgeratio?b. Whatistheoptimalnumberoffuturescontractswithouttailingthehedge?c. Whatisth

11、eoptimalnumberoffuturescontractswithtailingthehedge?(1.02J1.23,12.08)8. Foraninterestratecompoundedannuallyof7%,whatistheequivalentinterestratecompounded:(6.88%,6.82%,6.78%,6.77%,6.77%)a. Semi-annuallyb. Quarterlyc. Monthlyd. Weeklye. Daily9. Giventhezeroratesandcashflowsforabond(seetablebelow):a.Wh

12、atisthetheoreticalprice?($986.23)b.Whatisthebondyield?(3.19%)Maturity(Years)TreasuryZeroRates(%)CouponPaymentsPrincipal0.52.0%$10-1.02.3%$15-1.52.7%$10-2.03.2%$15$100010. Astockprovidesadividendyieldof5.0%paidsemi-annually(equivalentto4.94%continuouslycompounded).Thespotpriceofthestockiscurrently$50

13、0,andtherisk-freerateis7.5%withcontinuouscompounding.a. Whatisthetwo-yearforwardpriceforastock?($526.27)b. Whatisthecontinuouslycompoundedcostofcarryforthestock?(2.56%)11. AUSinvestorseesanarbitrageopportunityinthecurrencymarkets.ThespotexchangeratebetweentheSwissFrancandUSDollaris1.0404($perCHF).As

14、sumethecontinuouslycompoundedinterestratesintheUSandSwitzerlandare0.25%and0%,respectively.The3-monthcurrencyforwardpriceis1.0300($perCHF).Whatisthetheoreticallycorrectforwardprice.Whatistheinvestor,stotalprofit(inCHF),assumingshebeginsbyborrowing1,000CHF?(1.04105,10.73)12. ContinuouslycompoundedLIBO

15、Rratesperannumfor6,12,and18-monthsaregiveninthetablebelow.The2-yearswaprateis3%perannumwithpaymentsmadesemi-annually.Whatisthe2-yearLIBOR/swapzeroratefor2years?UseLIBORdiscounting(2.99%)Maturity(Years)LIBOR/SwapZeroRates(%)0.52.0%1.02.4%1.52.6%2.0?13. Consideracurrencyswapwith3yearsremaining.Afinanc

16、ialinstitutionreceives3.0%perannuminsterling(GBP)andpays1.5%perannumindollarsonceayear.TheLIBOR/swapinterestratewithcontinuouscompoundingisflatinbothcountries.TheBritishrateis2.5%perannumandtheUSrateis2.0%perannum.Theprincipalamountsare10millionpoundsand$15milliondollars,andthecurrentexchangerateis$1.5=1.Byvaluingthecur

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