How it works
Illustrative dataFenmarsh Bank plc, a new bank for the Lab Test
The lessons use RiskAtoms Bank's £67bn liquidity book. These problems apply the same methods, rates and factors to a new, smaller bank: Fenmarsh Bank plc, with a £5,000m balance sheet, its staff pension scheme and the Fenmarsh Property Income Fund, all invented. The calculations are hand-sized: a 30-day stress summed by source, one day of eight payments, one waterfall. All figures are made up, in £ millions, principal only (no interest flows).
Problem 1Who funds Fenmarsh
L3.5.02 · L3.5.08Treasurer, Fenmarsh Bank plc
Fenmarsh Bank plc (invented) is a UK retail and small-business bank with a £5,000m balance sheet, about a thirteenth the size of RiskAtoms Bank. Its balance sheet, used in every problem below:
| Asset | Amount | Due in 30 days |
|---|---|---|
| Cash and central bank reservesLevel 1 | 200 | – |
| GiltsLevel 1, £100m pledged in repo | 400 | – |
| Covered bondsLevel 2A | 200 | – |
| BBB corporate bondsLevel 2B | 300 | – |
| Placements with banks | 100 | 100 |
| Residential mortgages | 2,700 | 30 |
| Loans to small businesses | 900 | 30 |
| Other assets | 200 | – |
| Total assets | 5,000 |
| Liability or equity | Amount | Due within 30 days |
|---|---|---|
| Stable retail deposits (insured current accounts) | 1,600 | 1,600 |
| Less stable retail deposits (instant-access savings) | 1,000 | 1,000 |
| Retail fixed-term deposits | 600 | 60 |
| Operational corporate deposits | 200 | 200 |
| Other corporate deposits | 400 | 300 |
| Deposits from banks and other financial institutions | 300 | 200 |
| Repo secured on gilts | 100 | 100 |
| Senior bonds (over a year) | 400 | 0 |
| Equity | 400 | – |
| Total funding | 5,000 |
Off the balance sheet: £500m of undrawn committed credit facilities to companies, and £30m of extra derivative collateral the bank would have to post after a three-notch downgrade.
To make its funding stickier, the treasurer replaces £200m of the other corporate deposits falling due within 30 days (paying 3.50%, LCR outflow rate 40%) with two-year retail fixed-term bonds paying 4.10%, which have no outflow within 30 days.
Fenmarsh's wholesale funding, its deposits from banks and other financial institutions and its repo, comes from six providers (£m):
| Provider | Deposits | Repo | Total |
|---|---|---|---|
| Provider A (bank) | 70 | 50 | 120 |
| Provider B (money market fund) | 90 | 0 | 90 |
| Provider C (bank) | 20 | 50 | 70 |
| Provider D (pension scheme) | 55 | 0 | 55 |
| Provider E (insurer) | 35 | 0 | 35 |
| Provider F (company) | 30 | 0 | 30 |
| Total | 300 | 100 | 400 |
As in L3.5.08: Funding concentration, a counterparty is significant if it provides more than 1% of the total balance sheet.
Lessons: L3.5.02: How banks fund themselves · L3.5.08: Funding concentration
(a)What is Fenmarsh's loan-to-deposit ratio (customer loans over customer deposits)? Answer in %.
%(b)What does the switch cost in extra interest a year for each £1 of 30-day stressed outflow it removes? Answer in % a year.
%(c)What is the HHI of the wholesale funding by provider, on the 0 to 10,000 scale?
(d)How many of the six providers are significant counterparties?
Problem 2A month of forced sales
L3.5.01Liquidity risk manager
In a market-wide stress Fenmarsh must find £600m over a month, before any collateral calls. Its unencumbered buffer at face value, and the forced-sale discounts in the module's market-wide stress:
| Asset | Face, £m | Discount at m = 1 |
|---|---|---|
| Cash and reserves | 200 | 0% |
| Gilts not pledged | 300 | 2% |
| Covered bonds (Level 2A) | 200 | 10% |
| BBB corporate bonds (Level 2B) | 300 | 30% |
| Total | 1,000 |
As in L3.5.01: Funding liquidity and market liquidity, market stress scales every discount ( is the module's market-wide stress, twice as severe) and brings collateral calls of £20m × on top of the £600m. Fenmarsh pays from cash first, then sells gilts, then covered bonds, then BBB bonds.
(a)What is the counterbalancing capacity at m = 1? Answer in £m.
£m(b)At m = 1, what face value of covered bonds must Fenmarsh sell to pay the month's bill, calls included? Answer in £m.
£m(c)At what level of market stress m does the headroom reach zero?
Problem 3The buffer and the two ratios
L3.5.06 · L3.5.07Regulatory reporting, treasury
From the balance sheet in Problem 1: the £100m of gilts pledged in repo is encumbered and does not count. The LCR haircuts are 0% (Level 1), 15% (Level 2A) and 50% (Level 2B); after haircuts, Level 2 may be at most 40% of the stock and Level 2B at most 15%, with the excess deducted. The LCR's 30-day outflows and inflows (inflows are capped at 75% of outflows):
| LCR line | Base, £m | Rate |
|---|---|---|
| Stable retail deposits | 1,600 | 5% |
| Less stable retail deposits | 1,000 | 10% |
| Retail term deposits due in 30 days | 60 | 10% |
| Operational corporate deposits | 200 | 25% |
| Other corporate deposits due in 30 days | 300 | 40% |
| Bank and financial deposits due in 30 days | 200 | 100% |
| Repo on gilts (Level 1) | 100 | 0% |
| Undrawn committed facilities to companies | 500 | 10% |
| Collateral after a three-notch downgrade | 30 | 100% |
| Inflow: placements with banks due in 30 days | 100 | 100% |
| Inflow: loan repayments due in 30 days | 60 | 50% |
The NSFR's available and required stable funding factors (all mortgages qualify for 65%):
| Available stable funding | £m | Factor |
|---|---|---|
| Stable retail deposits | 1,600 | 95% |
| Less stable retail deposits | 1,000 | 90% |
| Retail term deposits, under a year | 300 | 90% |
| Retail term deposits, a year or more | 300 | 100% |
| Operational corporate deposits | 200 | 50% |
| Other corporate deposits (all under a year) | 400 | 50% |
| Bank and financial deposits (all under 6 months) | 300 | 0% |
| Repo (under 6 months) | 100 | 0% |
| Senior bonds (over a year) | 400 | 100% |
| Equity | 400 | 100% |
| Required stable funding | £m | Factor |
|---|---|---|
| Cash and reserves | 200 | 0% |
| Gilts (including the £100m in repo) | 400 | 5% |
| Covered bonds | 200 | 15% |
| BBB corporate bonds | 300 | 50% |
| Placements with banks (under 6 months) | 100 | 15% |
| Residential mortgages | 2,700 | 65% |
| Small business loans, under a year | 330 | 50% |
| Small business loans, a year or more | 570 | 85% |
| Other assets | 200 | 100% |
| Undrawn committed facilities | 500 | 5% |
Lessons: L3.5.06: The liquidity buffer · L3.5.07: LCR and NSFR in practice
(a)What is the buffer, the stock of HQLA after haircuts and caps? Answer in £m.
£m(b)What is Fenmarsh's LCR? Answer in %.
%(c)What is its NSFR? Answer in %.
%(d)A portfolio manager proposes spending £100m of reserves on more BBB bonds for the yield. What would the buffer be? Answer in £m.
£m(e)Instead, treasury replaces £100m of bank deposits due within 30 days with a two-year senior bond. What would the LCR be? Answer in %.
%
Problem 4The ladder, on contract and in behaviour
L3.5.04ALM analyst, treasury
Fenmarsh's contractual cash flow ladder for the first year, £m. Principal only; the buffer is held as a stock, not in the flows; deposits with no fixed term fall due overnight on contract.
| Bucket | Inflows | Outflows | of which demand deposits |
|---|---|---|---|
| Overnight | 40 | 3,150 | 3,000 |
| 2–7 days | 40 | 150 | – |
| 8–30 days | 80 | 160 | – |
| 1–3 months | 120 | 190 | – |
| 3–6 months | 170 | 170 | – |
| 6–12 months | 340 | 80 | – |
The £3,000m of demand deposits are the retail current accounts and savings, the operational deposits and the £200m of other corporate deposits due overnight. In the behavioural view they leave 1%, 1%, 3%, 4%, 4%, 8% of the balance in the six buckets in normal times; the rest stays beyond a year. Every other line keeps its contractual dates. The position adds the buffer from Problem 3, £788.2m, as cash on day one.
(a)What is the contractual cumulative gap at 30 days? Answer in £m, negative for a shortfall.
£m(b)In the behavioural view, what is the position at 30 days (cumulative gap plus the buffer)? Answer in £m.
£m(c)In the behavioural view, what is the lowest position in the first year? Answer in £m.
£m
Problem 5A combined stress, and the plan
L3.5.03 · L3.5.05 · L3.5.10Head of liquidity risk
Fenmarsh's combined stress: a three-notch downgrade during a market-wide freeze. The assumptions for the first 30 days:
| Line | Assumption |
|---|---|
| Stable retail deposits | 6% withdrawn |
| Instant-access savings | 20% withdrawn |
| Operational corporate deposits | 25% withdrawn |
| Other corporate deposits due in 30 days | 50% renewed |
| Retail term deposits due in 30 days | 50% renewed |
| Bank and financial deposits due in 30 days | none rolled |
| Repo on gilts | rolls (secured on Level 1) |
| Undrawn committed facilities | 10% drawn |
| Downgrade collateral | £30m called on day 1 |
| Placements with banks due in 30 days | not renewed: cash comes in |
| Loans due in 30 days | 50% renewed, the rest repaid |
The counterbalancing capacity is the buffer at the forced-sale values of Problem 2 at , £884m. The cumulative net outflow rises every day of the first month and stays below capacity. From day 31 the run slows to a steady net outflow of £9m a day. The bank survives while its headroom (capacity less cumulative net outflow) is not negative.
Lessons: L3.5.03: What drains liquidity · L3.5.05: Liquidity stress tests and survival horizons · L3.5.10: Contingency funding plans
(a)What is the cumulative net outflow over the first 30 days? Answer in £m.
£m(b)How many days does Fenmarsh survive?
days(c)The board wants Fenmarsh to survive 90 days. The contingency funding plan lists four actions. Which one, on its own, gets it there?
(d)With that action, what is Fenmarsh's headroom on day 90? Answer in £m.
£m
Problem 6A day on the payment system
L3.5.09Payments liquidity manager
Fenmarsh settles its sterling payments over its account at the central bank's real-time gross settlement system. One day's payments, in time order:
| Time | Direction | £m |
|---|---|---|
| 07:00CLS pay-in, time-specific | Out | 120 |
| 08:30 | In | 80 |
| 09:15 | Out | 150 |
| 10:00 | In | 60 |
| 11:30 | Out | 90 |
| 12:45From the largest counterparty | In | 200 |
| 14:00 | Out | 70 |
| 16:30 | In | 110 |
It starts the day with £120m of reserves. Beyond that it borrows intraday from the central bank against gilts, at a 5% haircut.
Lessons: L3.5.09: Intraday liquidity
(a)What is the day's largest intraday liquidity usage? Answer in £m.
£m(b)The largest counterparty's £200m never arrives (a counterparty stress). What is the largest usage now? Answer in £m.
£m(c)On the stressed day, what face value of gilts must Fenmarsh pledge for intraday credit to cover the usage beyond its reserves? Answer in £m.
£m
Problem 7What liquidity costs
L3.5.11Funds transfer pricing, treasury
Fenmarsh's funds transfer pricing curve, continuously compounded: a flat base rate of 3.90% plus a liquidity premium
A relationship manager offers a small business a 3-year loan at a floating rate reset every three months: base plus 1.80%.
The buffer is funded for one year at the FTP rate. At market value it holds £500m of Level 1 (cash and unpledged gilts), £200m of Level 2A and £300m of Level 2B, which earn the base rate plus 0.00%, 0.25% and 0.40%. Its cost is shared in proportion to the LCR's gross outflows (Problem 3); corporate banking owns the operational and other corporate deposits and the undrawn facilities.
Lessons: L3.5.11: Pricing liquidity
(a)What liquidity premium should the loan be charged? Answer in bp.
bp(b)What net margin does the loan earn after the base rate and the liquidity premium? Answer in bp.
bp(c)What does it cost Fenmarsh a year to hold its buffer? Answer in £m.
£m(d)How much of that cost is charged to corporate banking? Answer in £m.
£m
Problem 8Beyond the bank: a pension scheme and a fund
L3.5.12Risk manager, pensions and funds
Fenmarsh's staff pension scheme hedges its liabilities with LDI: swaps and gilt repo with a PV01 of £0.6m per basis point. Gilt yields rise 150bp in three days. The trustees' liquidity waterfall:
| Source | £m | Ready by day | Sale cost |
|---|---|---|---|
| Collateral buffer in the LDI fund | 40 | 0 | – |
| Scheme cash | 15 | 1 | – |
| Fenmarsh's liquidity facility to the scheme | 20 | 2 | – |
| Corporate bonds | 60 | 3 | 3% |
| Equities | 80 | 4 | 2% |
The Fenmarsh Property Income Fund (also invented) deals daily. Its net asset value is £200m: 200 million units at 100p. One day investors redeem £15m net, paid from cash. The fund then sells enough property to replace the cash it paid, and selling property costs 6% of its value.
Lessons: L3.5.12: Liquidity beyond banks
(a)What collateral does the hedge call for? Answer in £m.
£m(b)If the cash is needed by the end of day 2, how much short is the scheme? Answer in £m.
£m(c)How large a yield rise can the scheme meet within three days? Answer in bp.
bp(d)Without swing pricing, by how much does the value of a unit fall for the investors who stay? Answer in pence.
p(e)What does swing pricing do for the fund?
Back · L3.5.12
Liquidity beyond banks
Next module · L3.6.01 · coming soon
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