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123極速惡補 - hedge accounting (1) - (5) (完)
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近呢一兩個月都有唔少朋友PM在下, 想問問關於hedge accounting既野. 同時我自己
做野呢度都有好多同事仔喊晒口咁嗌晒救命, 因為financial instruments甚至hedge
accounting好似都係第一次入special topic (無左share based payment同埋foreign
exchange). 其實, hedge accounting只係HKAS39入面既para 85 - 102, 但係同事
仔就話我聽CLP直頭將佢當係自己一個topic, 唔講仲以為出個個新standard齋講hedge
accounting. 仲要無past papers. (其實有架, 我記得ACCA好似有, 請有心人自
己抄下啦) 換句話講, hedge accounting考硬.
先講句唔好意思, 但係因為近日真係好忙, 所以拖到而家先至有時間覆 (而家都仲
好忙架, 不過詐病放假), 希望大家趕得切溫書 (星期六考試係咪? Good luck!).
我之前望過下D CLP, hedge accounting後面既 practice question好似要計數, 睇
黎要一反常態, 老作D example出黎, 齋講無益.
雖然話係極速惡補, 但係講hedge accounting之前首先要從hedging講起 (畢竟羊毛
出自羊身上).
究竟點解要做對沖? 就係唔想因為未來既uncertainty而虧錢. 但係, 你係hedge
against your potential loss既同時, 同時間cap左自己既potential gain. 對沖
就係咁, 你係為左將來唔好虧損而將你自己可能既賺規既範圍去縮細. 呢個世界上
, 只有option係可以俾你一樣 "有限風險, 無限回報"既投資. 你首先一定要明白
點解要做對沖, 因為如果唔係既話以下所有野你會睇唔明.
比個例, 油價咁鬼貴, 如果你係國泰CFO, 你點都要買D期油去對沖下啦係咪? 如果
唔係高油價對你個cost影響好大. 無幾耐之前Goldman Sachs仲有條友 (就係3年話
油價會升穿1舊水個位神人, 個陣時油價仲做緊35蚊筒) 話油價會升穿兩舊水, 唔做
下對沖點得呀?
如果大家有抄過下窩輪期指既話, 你可能對呢一類衍生工具唔陌生, 唔識既朋友就
唔好意思啦, 因為呢堂係惡補, 所以我唔徙時間係呢D basic野度, 請自己搵料.
好, 講hedge accounting之前要講既, 仲有derivatives既accounting. 因為如果
唔識呢樣, 下面既基本上就唔洗睇落去. 時間關係, 我將之前一位朋友關於hedging既
PM問題既答案貼番出黎. 以下既例子係用forward contract, 即係到期個日先至進
行交收 (所謂既交收即係net settlement), 如果係期貨合約甚至係options既話其
實大致上差唔多, 因為derivatives as financial assets/ liabilities 都係classified
as fair value through P&L.
例子如下:
假設我今日買一張一年期既100萬歐羅forward contract (簡稱FC), 今日既spot rate係
12蚊, 一年後既forward rate係13蚊. 你張FD就會用13蚊個forward rate定價, 到
期日就用13蚊交收.
Forward contract既玩法通常都係一買一賣 - 比如話賣港紙買歐羅, 即係話你用港
紙去買歐羅.比如話到期個日, 如果歐羅個spot rate係貴過當初day 1既forward rate既
話, 理論上你只係需要用forward rate個價錢去買歐羅, 轉過手賣番就即賺個差價
. 但係實情係你唔洗真係用一大舊港紙係到期個日去同銀行買一舊歐羅返黎, 通常
銀行係會因應你張contract升左(或者跌左)幾多而去找數俾你(或者叫你找數). 換
句話講, 即係settlement on net basis (佢只係俾番個差價你/ 或者你俾番個差價
佢).
(有興趣既話你可以去問問自己banker D FC係點樣形式, 故不贅)
FC係derivative (即係Financial Asset at fair value through P&L), 所以第一
日當你買左張FC要recognise既時候, fair value應該係0蚊. 一條0蚊既entry好簡
單, 所以唔再多講 (我唔assume hedge accounting):
Dr Financial asset - Forward contract $0
Cr Financial liability - Forward contract ($0)
好啦, 到年底(31/12)埋數, 假設仲有5個月到期, 咁你就要係年底個日, 問銀行究
竟5個月後既forward rate (唔係用spot rate架, 因為係計數之前都係唔會用到spot
rate) 係幾多, 而去計你張contract既FV. 假設歐羅升緊, 係呢日, 5個月後既forward
rate係13.5既話, 條entry就係:
Dr Financial Asset - Forward Contract $500K (1,000,000 * [13.5-13.0])
Cr Fair value gain ($500K)
你一定會(唔係, 應該話你一定要)明白點解forward rate升左你張forward contract係
FV gain, 如果唔明既話, 我根本就唔洗講forward contract, 因為我解釋極都係唔
會明.
好啦, 最後到期個日就會結算, 而當初我話你可以用forward contract gain去hedge你
歐羅上昇既原因, 就係因為到期個日(derecognise張forwrad contract既時候)係net
settlement. 到呢日你先至去睇個spot rate, 假設歐羅當日spot rate係13.6蚊既
話, 條entry就會係咁 (因為我懶, 所以將fair value gain同derecognition條entry夾
埋一齊做):
Dr Cash $600K
Cr Fair value gain ($100K)
Cr Financial Asset - Forward contract ($500K)
銀行會找$600K net數俾你. 即係話, 如果你今日要用13.6個spot rate去換歐羅既
話, 咪慳左$600K. In substance你係用番當初同銀行定個forward rate, 即係13.0,
去兌換今日既歐羅 (13.6). 吊番轉, 如果張contract係fair value loss既話, 你
就嘔突
左出黎. 總言之, 無論賺虧, 你已經將自己個exchange rate cap左係13.0個個forward
rate.
當然, 係現實生活裡面, 銀行D forward contract一定係有個spread (因為要賺錢),
所以你個hedge一定唔會係perfect hedge, 不過, 雖不中亦不遠矣.
Forward contract大概就係咁玩. D人好多時就係用forward contract去做cash flow
hedge, 雖然hedge accounting入數方法同以上好唔同, 不過in substance都係做緊
同一樣野.
Hedge accounting其實好多都係會用以上既一D derivatives去做hedging, 但係入
賬既時候, 表面睇黎可以同上面做既entries完全唔同, 甚至可以挑戰你對accounting
standard既認知. 究竟HKAS39入面呢17段有咩咁難? 答案係 - 無! 只要你明白hedging背
後既動機, hedge accounting其實唔難做, 只係極度麻煩 (basic個D梗係簡單, 係
覆雜個D先煩).
係你決定用咩fair value hedge定係cash flow hedge之前, 你首先要知道你要hedge
D咩 (hedge item), 用咩去hedge (hedging instrument), 先一而後二 (D definition我
唔去解啦, 自己睇standard啦). 第三樣要諗既先後可唔可以去做hedge accounting.
通常hedging instrument都係用derivatives, 所以如果你係用derivatives去hedge既
話, 除左written option之外基本上都無乜限制.
但係用non-derivatives既話情況就唔同, 因為除非你係hedge foreign exchange
risk (簡稱forex risk)你係唔可以用non-derivative financial asset/ liabilities.
即係話, 你可以用一舊bond去做hedging instrument, 但係只限於cash flow hedge
against forex risk, 同埋你舊bond本身可能會有price risk (點解? 入數係用effective
interest method質番舊amortised cost姐, 但係實際上, 只要出面個息口高過你個
coupon rate既話你舊bond既價格就會下跌, 呢D係finance, 唔再講), 要再整個舊
option去hedge against the price risk. (D乜risk乜risk個D都係係HKFRS7度出黎
, 唔知係咩請自己去睇)
至於hedged item. 基本上好多野都可以做hedged item, 只要舊野會subject to changes
in FV or future cash flow, 而你designate佢為hedged item就得? inventory得唔
得? 梗係得啦! Firm commitment亦得, 連forecast transaction (即係話你未來一
年後可能去買台機器番黎, 個個就係forecast transaction)都得.
但係有D野唔做得hedged item - equity method investment (即係associates, 用
equity method既JCE等), investment in subsidiaries, firm commitment to acquire
a business (但係可以做forex risk既hedging)呢D.
Held-to-maturity既financial instrument都唔可以做fair value hedge既hedge
item, 因為都話明要hold to maturity囉, FV郁唔關你事 (quoted bond到期日既價
格一定會係face value嘛), 但係可以做credit risk或者forex risk既hedging.
Intragroup transactions唔可以做hedged item, 因為係group level會eliminate晒
(除非eliminate唔晒), 但係係company level就可以做, group level勾番出黎架
姐.
[ 本帖最后由 Calvin_Mai 于 2010-4-21 00:12 编辑 ] |
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