Market risk management
Market risk is the risk that Barclays earnings or capital, or its ability to meet business objectives, will be adversely affected by changes in the level or volatility of market rates or prices such as interest rates, credit spreads, commodity prices, equity prices and foreign exchange rates. The main market risk arises from trading activities. Barclays is also exposed to interest rate risk in the banking book and the pension fund.
Barclays market risk objectives are to:
– Understand and control market risk by robust measurement and the setting of position limits.
– Facilitate business growth within a controlled and transparent risk management framework.
– Ensure traded market risk resides primarily in Barclays Capital.
– Minimise non-traded market risk.
Organisation and structure
The Board approves market risk appetite for trading and non-trading activities. The Market Risk Director is responsible for the market risk control framework and, under delegated authority from the Risk Director, sets a limit framework within the context of the approved market risk appetite. A daily market risk report summarises Barclays market risk exposures against agreed limits. This daily report is sent to the Risk Director, the Market Risk Director, the Finance Director and the appropriate Business Risk Directors.
The Head of each business, assisted by the business risk management team, is accountable for all market risks associated with its activities. Each business is responsible for the identification, measurement, management, control and reporting of market risk as outlined in the Barclays Market Risk Control Framework. Oversight and support is provided to the business by the Market Risk Director, assisted by the central market risk team. The Market Risk Committee reviews, approves, and makes recommendations concerning the market risk profile across Barclays including risk appetite, limits and utilisation. The Committee is held monthly and is chaired by the Market Risk Director. Attendees include the Risk Director, respective business risk managers and senior managers from the central market risk team.
In Barclays Capital, the Head of Market Risk is responsible for implementing the market risk control framework. Day to day responsibility for market risk lies with the senior management of Barclays Capital, supported by the Market Risk Management team that operates independently of the trading areas. Daily market risk reports are produced for the main Barclays Capital business areas covering the different risk categories including interest rate, credit spread, commodity, equity and foreign exchange. A more detailed trading market risk presentation is produced fortnightly and discussed at the Barclays Capital Traded Products Risk Review meeting. The attendees at this meeting include senior managers from Barclays Capital and the central market risk team.
Outside Barclays Capital, Global Retail and Commercial Banking is responsible for the non-structural interest rate risk in the banking book and Group Treasury is responsible for structural risk (interest rate and FX). The chart below right gives an overview of the business control structure.
Traded market risk
Barclays policy is to concentrate trading activities in Barclays Capital. This includes transactions where Barclays Capital acts as principal with clients or with the market. For maximum efficiency, Barclays manages client and market activities together. In Barclays Capital, trading risk occurs in both the trading book and the banking book as defined for regulatory purposes.
In anticipation of future customer demand, Barclays maintains access to market liquidity by quoting bid and offer prices with other market makers and carries an inventory of capital market and treasury instruments, including a broad range of cash, securities and derivatives. Derivatives entered into for trading purposes include swaps, forward rate agreements, futures, credit derivatives, options and combinations of these instruments. For a description of the nature of derivative instruments, see page 105.
Traded market risk measurement
The measurement techniques used to measure and control traded market risk include Daily Value at Risk and Stress Testing.
Daily Value at Risk (DVaR)
is an estimate of the potential loss which might arise from unfavourable market movements, if the current positions were to be held unchanged for one business day, measured to a confidence level of 98%. Daily losses exceeding the DVaR figure are likely to occur, on average, twice in every 100 business days.
DVaR uses the historical simulation method with a historic sample of two years. The credit spread calculation takes into account specific risks associated with different business names.
There are a number of considerations that should be taken into account when reviewing DVaR numbers. These are:
-
– historical simulation assumes that the past is a good representation of the future which may not always be the case.
-
– the assumed one day time horizon will not fully capture the market risk of positions that cannot be closed out or hedged within one day.
-
– DVaR does not indicate the potential loss beyond the 98th percentile.
To complement DVaR, stress testing is performed and there is a large set of non-DVaR limits including foreign exchange concentration limits and interest rate delta limits.
DVaR is an important market risk measurement and control tool and consequently the model is regularly assessed. The main approach employed is the technique known as
back-testing
which counts the number of days when trading losses exceed the corresponding DVaR estimate.
On the basis of DVaR estimated to a 98% confidence level, on average there would be five days each year when trading losses would be expected to exceed DVaR and would therefore be reflected as back-testing exceptions. For Barclays Capital’s trading book, there were seven instances of a daily trading loss exceeding the corresponding 98% back-testing DVaR. These back-testing exceptions in 2007 reflected the increased volatility across a number of markets in which Barclays Capital operates. There were no instances of back-testing exceptions on a similar basis in 2006.
Stress testing
provides an indication of the potential size of losses that could arise in extreme conditions. The three main types of stress test are:
-
– risk factor: historical stress moves are applied to each of the risk categories which include interest rate, credit spread, commodity, equity and foreign exchange rate
-
– emerging market contagion: historical stress moves combined with contagion factors are applied to the emerging markets portfolio
-
– scenario: stress scenarios are applied to the trading book
Stress results are produced at least fortnightly and are included in the Traded Products Risk Review meeting information pack. If a potential stress loss exceeds the corresponding trigger limit, the positions captured by the stress test are reviewed and discussed by Barclays Capital market risk and the respective Barclays Capital Business Head(s). The minutes of the discussion, including the merits of the position and the appropriate course of action, are then sent to the Market Risk Director for review.
Analysis of traded market risk exposures
The analysis of traded market risk exposures is given in Note 46.
Analysis of trading revenue
The histograms show the distribution of daily trading revenue for Barclays Capital in 2007 and 2006. Revenue includes net trading income, net interest income and net fees and commissions relating to primary trading. The average daily revenue in 2007 was £26.2m (2006: £22.0m) and there were 224 positive revenue days out of 253 (2006: 243 out of 252). The number of negative revenue days increased in 2007 largely as a result of volatile markets in the second half of the year. The number of large positive revenue days also increased but these were spread across the year.
Interest rate risk in the banking book
Interest rate risk arises from the provision of retail and wholesale (non-traded) banking products and services, as well as structural exposures within Barclays balance sheet.
The management approach of Barclays with respect to interest rate risk is to transfer the risk from the businesses either into local treasuries or to Group Treasury using an internal transfer price or interest rate swap. The methodology used to transfer this risk depends on whether the product contains yield curve risk, basis risk or customer optionality. Limits exist to ensure no material risk is retained within any business or product area.
Once each business’s risk has been transferred, the treasuries manage any residual yield curve and basis risks subject to modest risk limits and other controls. Market risk is also taken in overseas treasuries, within these limits, to support and facilitate customer activity.
Risk measurement
The techniques used to measure and control interest rate risk in the banking book include Annual Earnings at Risk, Daily Value at Risk and Stress Testing.
Annual Earnings at Risk (AEaR)
measures the sensitivity of net interest income (NII) over the next 12 months. It is calculated as the difference between the estimated income using the current yield curve and the lowest estimated income following a 50 basis points increase or decrease in interest rates.
Outside Barclays Capital, Barclays uses a simplified approach to calculate
DVaR
. It is used as a complementary tool to AEaR. Both AEaR and DVaR are supplemented by stress testing and a range of non-DVaR limits.
Stress testing
is carried out by the business centres and is reviewed by senior management and business-level asset and liability committees. The stress testing is tailored to the business and typically incorporates scenario analysis and historical stress movements applied to respective portfolios.
Analysis of interest rate risk in the banking book exposures
The analysis of interest rate risk in the banking book is given in Note 46.
Other market risks
Barclays maintains a number of defined benefit pension schemes for past and current employees. The ability of the Pension Fund to meet the projected pension payments is maintained through investments and regular Bank contributions.
Pension risk
arises because: the estimated market value of the pension fund assets might decline; or their investment returns might reduce; or the estimated value of the pension liabilities might increase. In these circumstances, Barclays could be required or might choose to make extra contributions to the pension fund. Financial details of the pension fund are in Note 30.
Investment risk
is the risk of financial volatility arising from changes in the market value of investments, principally occurring in Barclays insurance companies. These investments may comprise various liquid instruments, such as cash, bonds and listed equities, to cover future insurance liability flows, and may therefore give rise to a mismatch between the revaluation of assets and liabilities. It is Barclays policy to hedge such exposures in line with a defined risk appetite.
Barclays policy is for foreign exchange trading risk to be concentrated and managed in Barclays Capital. Some transaction
foreign exchange risk
exposure arises within the local treasury operations in Global Retail and Commercial Banking to support and facilitate client activity. This is minimised in accordance with modest risk limits and was not material as at end 2007. Other non-Barclays Capital foreign exchange exposure is covered in Note 46.
Asset management structural market risk
arises where the fee and commission income earned by asset management products and businesses is affected by a change in market levels, primarily through the link between income and the value of assets under management. Where support agreements exist, the Group is exposed to the performance of the underlying asset. This exposure arises mainly within Barclays Global Investors, but also in Global Retail and Commercial Banking, and Barclays Wealth. It is Barclays policy that businesses monitor and report this risk against a defined risk appetite and regularly assess potential hedging strategies.
Derivatives
The use of derivatives and their sale to customers as risk management products are an integral part of the Group’s trading activities. These instruments are also used to manage the Group’s own exposure to fluctuations in interest, exchange rates and commodity and equity prices as part of its asset and liability management activities.
Barclays Capital manages the trading derivatives book as part of the market risk book. This includes foreign exchange, interest rate, equity, commodity and credit derivatives. The policies regarding market risk management are outlined in the market risk management section on pages 102 to 104.
The policies for derivatives that are used to manage the Group’s own exposure to interest and exchange rate fluctuations are outlined in the asset and liability market risk section on page 239.
Derivative instruments are contracts whose value is derived from one or more underlying financial instruments or indices defined in the contract. They include swaps, forward rate agreements, futures, options and combinations of these instruments and primarily affect the Group’s net interest income, net trading income, net fee and commission income and derivative assets and liabilities. Notional amounts of the contracts are not recorded on the balance sheet.
The Group participates both in exchange traded and over the counter derivatives markets.
Exchange traded derivatives
The Group buys and sells financial instruments that are traded or cleared on an exchange, including interest rate swaps, futures and options on futures. Holders of exchange traded instruments provide margin daily with cash or other security at the exchange, to which the holders look for ultimate settlement.
Over the counter traded derivatives
The Group also buys and sells financial instruments that are traded over the counter, rather than on a recognised exchange.
These instruments range from commoditised transactions in derivative markets, to trades where the specific terms are tailored to the requirements of the Group’s customers. In many cases, industry standard documentation is used, most commonly in the form of a master agreement, with individual transaction confirmations. The existence of a signed master agreement is intended to give the Group protection in situations where a counterparty is in default.
Foreign exchange derivatives
The Group’s principal exchange rate related contracts are forward foreign exchange contracts, currency swaps and currency options. Forward foreign exchange contracts are agreements to buy or sell a specified quantity of foreign currency, usually on a specified future date at an agreed rate. A currency swap generally involves the exchange, or notional exchange, of equivalent amounts of two currencies and a commitment to exchange interest periodically until the principal amounts are re-exchanged on a future date.
Currency options provide the buyer with the right, but not the obligation, either to purchase or sell a fixed amount of a currency at a specified exchange rate on or before a future date. As compensation for assuming the option risk, the option writer generally receives a premium at the start of the option period.
Interest rate derivatives
The Group’s principal interest rate related contracts are interest rate swaps, forward rate agreements, basis swaps, caps, floors and swaptions. Included in this product category are transactions that include combinations of these features.
An interest rate swap is an agreement between two parties to exchange fixed rate and floating rate interest by means of periodic payments based upon a notional principal amount and the interest rates defined in the contract. Certain agreements combine interest rate and foreign currency swap transactions, which may or may not include the exchange of principal amounts. A basis swap is a form of interest rate swap, in which both parties exchange interest payments based on floating rates, where the floating rates are based upon different underlying reference indices. In a forward rate agreement, two parties agree a future settlement of the difference between an agreed rate and a future interest rate, applied to a notional principal amount. The settlement, which generally occurs at the start of the contract period, is the discounted present value of the payment that would otherwise be made at the end of that period.
Credit derivatives
The Group’s principal credit derivative-related contracts include credit default swaps and total return swaps. A credit derivative is an arrangement whereby the credit risk of an asset (the reference asset) is transferred from the buyer to the seller of protection.
A credit default swap is a contract where the protection seller receives premium or interest-related payments in return for contracting to make payments to the protection buyer upon a defined credit event. Credit events normally include bankruptcy, payment default on a reference asset or assets, or downgrades by a rating agency.
A total return swap is an instrument whereby the seller of protection receives the full return of the asset, including both the income and change in the capital value of the asset. The buyer in return receives a predetermined amount.
Equity derivatives
The Group’s principal equity-related contracts are equity and stock index swaps and options (including warrants, which are equity options listed on an exchange). An equity swap is an agreement between two parties to exchange periodic payments, based upon a notional principal amount, with one side paying fixed or floating interest and the other side paying based on the actual return of the stock or stock index. An equity option provides the buyer with the right, but not the obligation, either to purchase or sell a specified stock, basket of stocks or stock index at a specified price or level on or before a specified date.
Commodity derivatives
The Group’s principal commodity-related derivative contracts are swaps, options, forwards and futures. The main commodities transacted are base metals, precious metals, oil and oil-related products, power and natural gas.
Disclosures about certain trading activities including non-exchange traded commodity contracts
The Group provides a fully integrated service to clients for base metals, precious metals, oil, power, natural gas, coal, freight, emission credits, structured products and other related commodities. This service offering continues to expand, as market conditions allow, through the addition of new products and markets.
The Group offers both over the counter (OTC) and exchange traded derivatives, including swaps, options, forwards and futures and enters into physically settled contracts in base metals, power and natural gas, with 2007 seeing the addition of oil and related products to this portfolio. Physical commodity positions are held at fair value and reported under the Trading Portfolio in Note 12.
Fair value measurement
The fair values of physical and derivative positions are primarily determined through a combination of recognised market observable prices, exchange prices, and established inter-commodity relationships. Further information on fair value measurement of financial instruments can be found in Note 49.
Credit risk
Credit risk exposures are actively managed by the Group. Refer to Note 47 for more information on the Group’s approach to credit risk management and the credit quality of derivative assets.
Fair value of the commodity derivative contracts
The tables below analyse the overall fair value of the commodity derivative contracts by movement over time and maturity. As at 31st December 2007 the fair value of the commodity derivative contracts reflects a gross positive fair value of £23,571m (2006: £17,501m) and a gross negative value of £22,759m (2006: £15,940m).
Movement in fair value of commodity derivative positions
Download table as excel file
|
|
|
2007
|
2006
|
|
|
|
£m
|
£m
|
|
|
|
|
|
| Fair value of contracts outstanding |
|
|
|
| at the beginning of the period |
|
1,561 |
527 |
| Contracts realised or otherwise settled |
|
|
|
| during the period |
|
(764)
|
379 |
| Fair value of new contracts entered into |
|
|
|
| during the period |
|
243 |
808 |
| Other changes in fair values |
|
(228)
|
(153)
|
|
|
|
|
|
| Fair value of contracts outstanding |
|
|
|
| at the end of the period |
|
812 |
1,561 |
|
|
|
|
|
Maturity analysis of commodity derivative fair value
Download table as excel file
|
|
|
2007
|
2006
|
|
|
|
£m
|
£m
|
|
|
|
|
|
| Not more than one year |
|
(279)
|
902 |
| Over one year but not more than five years |
|
773 |
327 |
| Over five years |
|
318 |
332 |
|
|
|
|
|
| Total |
|
812 |
1,561 |
|
|
|
|
|