- What is VaR?
- Value at Risk: the maximum loss not expected to be exceeded over a set horizon at a given confidence level (e.g., a 1-day 99% VaR).
- Four major financial risk types?
- Market risk, credit risk, operational risk, and liquidity risk (plus business/strategic risk).
- The risk-management process?
- Identify → measure → monitor → manage, then report. Risk is taken deliberately, not eliminated.
- Four ways to handle a risk?
- Avoid, retain, mitigate, or transfer (e.g., via insurance or hedging).
- What is systematic risk?
- Non-diversifiable, market-wide risk measured by beta. It is the only risk the market rewards with higher expected return.
- What is unsystematic risk?
- Company- or industry-specific risk that diversification can largely eliminate; it is not rewarded with extra return.
- What does beta measure?
- An asset's sensitivity to the overall market (its systematic risk). The market portfolio has a beta of 1.0.
- The CAPM formula?
- Required return = Rf + β × (Rm − Rf). It prices only systematic risk.
- The Sharpe ratio?
- (Rp − Rf) ÷ σp — excess return per unit of TOTAL risk (standard deviation). Higher is better.
- The Treynor ratio?
- (Rp − Rf) ÷ βp — excess return per unit of SYSTEMATIC risk (beta).
- What is Jensen's alpha?
- Portfolio return minus its CAPM-required return: Rp − [Rf + βp(Rm − Rf)]. Positive alpha = outperformance vs CAPM.
- The information ratio?
- Active return (vs benchmark) ÷ tracking error. Measures consistency of active management skill.
- What is RAROC?
- Risk-adjusted return on capital = risk-adjusted return ÷ economic capital. A unit adds value when RAROC exceeds the cost of equity.
- Expected loss formula (credit)?
- Expected loss = PD × LGD × EAD.
- Expected vs unexpected loss?
- Expected loss is the average anticipated loss (priced into spreads). Unexpected loss is its volatility — covered by capital.
- What is economic capital?
- The capital a firm estimates it needs to absorb unexpected losses to a chosen confidence level over a horizon.
- Probability of default (PD)?
- The likelihood a counterparty fails to meet its obligations over a stated horizon.
- Loss given default (LGD)?
- The fraction of exposure lost if default occurs = 1 − recovery rate.
- Exposure at default (EAD)?
- The amount outstanding to a counterparty at the moment it defaults.
- The three pillars of Basel?
- Pillar 1: minimum capital (credit, market, operational risk). Pillar 2: supervisory review. Pillar 3: market discipline via disclosure.
- What did Basel III add?
- Higher-quality capital, a leverage ratio, and two liquidity ratios — the LCR and NSFR — after the 2008 crisis.
- What is the leverage ratio (Basel III)?
- Tier 1 capital ÷ total exposure — a non-risk-based backstop to risk-weighted capital ratios.
- The three lines of defense?
- 1st: business/risk owners. 2nd: risk management & compliance. 3rd: independent internal audit.
- What is risk appetite?
- The amount and type of risk a firm is willing to take to pursue its objectives, set by the board.
- What is enterprise risk management (ERM)?
- A firm-wide, integrated approach to managing all risks together rather than in silos.
- Role of the chief risk officer (CRO)?
- Leads the independent risk function, reports risk to the board, and ensures limits and appetite are enforced.
- What is the GARP Code of Conduct?
- Principles all FRM holders/candidates agree to: professional integrity, conflict-of-interest avoidance, confidentiality, and professionalism.
- Moral hazard vs adverse selection?
- Moral hazard: risk-taking changes after a contract (e.g., once insured). Adverse selection: the riskiest parties are most likely to transact.
- What is a key risk indicator (KRI)?
- A metric that gives early warning of rising risk exposure (e.g., failed-trade rate, staff turnover).
- Principal-agent problem?
- Conflict between owners (principals) and managers (agents); governance and aligned incentives reduce it.
- What is hedging?
- Taking an offsetting position to reduce exposure to a risk factor (e.g., shorting futures against a long cash position).
- What is the cost of capital as a hurdle?
- A project adds value only if its risk-adjusted return exceeds the firm's cost of capital.
- Properties of the normal distribution?
- Symmetric, fully described by mean and variance; ~68% / 95% / 99% of values fall within 1 / 2 / 3 standard deviations.
- Why model prices as lognormal?
- Lognormal returns keep prices non-negative; the normal can produce negative prices.
- What is the Student's t distribution used for?
- Small samples and fatter tails than the normal — useful when tail risk is a concern.
- What is skewness?
- Asymmetry of a distribution. Negative skew (a long left tail) means large losses are more likely than a normal predicts.
- What is kurtosis?
- The 'fatness' of the tails. Excess kurtosis > 0 (leptokurtic) means fat tails — more extreme outcomes than the normal.
- Variance vs standard deviation?
- Variance (σ²) is the squared dispersion; standard deviation (σ) is its square root, in the same units as returns.
- Covariance vs correlation?
- Covariance gives the direction two variables move together (unscaled). Correlation standardizes it to between −1 and +1.
- Correlation formula?
- ρ = σxy ÷ (σx × σy). It ranges from −1 to +1; 0 means no linear relationship.
- Why does diversification reduce risk?
- Combining assets with correlation below 1 lowers portfolio standard deviation below the weighted average of the parts.
- The crisis problem with correlation?
- Correlations rise toward 1 in a crisis, so diversification fails just when it is needed most.
- What is a copula?
- A function that joins marginal distributions into a joint distribution, modeling tail dependence that linear correlation misses.
- Type I vs Type II error?
- Type I: reject a true null (probability = significance level α). Type II: fail to reject a false null.
- What is a p-value?
- The probability of observing a result at least as extreme as the data, if the null hypothesis is true. Small p-value → reject the null.
- What is the central limit theorem?
- The distribution of sample means approaches normal as the sample size grows, regardless of the population's shape.
- What is a confidence interval?
- A range that contains the true parameter with a stated probability (e.g., 95%), given the sample.
- Simple linear regression model?
- Y = b0 + b1·X + ε. The slope b1 is the change in Y per unit of X; b0 is the intercept; ε is the error.
- What does R² tell you?
- The fraction of the dependent variable's variation explained by the regression model (0 to 1).
- What is heteroskedasticity?
- Non-constant error variance in a regression; it makes standard errors unreliable.
- What is autocorrelation (serial correlation)?
- Errors correlated across observations (common in time series); it biases standard errors.
- What is multicollinearity?
- High correlation among regressors; it inflates standard errors and makes coefficients unstable.
- What is volatility clustering?
- The tendency for high-volatility and low-volatility periods to bunch together over time.
- What is EWMA?
- Exponentially weighted moving average — a volatility estimate that weights recent returns more via a decay factor (lambda).
- What is a GARCH model?
- A model of time-varying volatility that adds mean reversion to a long-run variance, capturing volatility clustering.
- Arithmetic vs geometric mean?
- Geometric mean (compound growth) is always ≤ the arithmetic mean; the gap widens with volatility.
- What is Monte Carlo simulation?
- Generating many random scenarios from a model to estimate a distribution of outcomes (e.g., for VaR).
- What is bootstrapping?
- Resampling observed data with replacement to estimate the distribution of a statistic without assuming a form.
- What is a Bayesian update?
- Revising a prior probability into a posterior as new evidence arrives, using Bayes' rule.
- What is the standard error of the mean?
- σ ÷ √n — the standard deviation of the sample mean; it shrinks as the sample grows.
- Discrete vs continuous distribution?
- Discrete takes countable values (binomial); continuous takes any value in a range (normal).
- What is a Poisson distribution used for?
- Counting the number of events in a fixed interval (e.g., number of defaults or operational-loss events).
- What is mean reversion?
- The tendency of a variable (e.g., volatility or rates) to return toward its long-run average over time.
- How do bond prices and yields relate?
- Inversely: when market rates rise, existing fixed-rate bond prices fall, and vice versa.
- What is duration?
- A bond's price sensitivity to interest-rate changes, in years. A first-order (linear) estimate of the price change.
- What raises a bond's duration?
- Longer maturity, a lower coupon, and a lower yield all increase duration (and price volatility).
- A zero-coupon bond's duration?
- Equals its maturity — the maximum duration for a given term.
- What is convexity?
- The curvature of the price-yield relationship; it corrects duration's straight-line estimate for large rate moves.
- Modified vs Macaulay duration?
- Macaulay is the weighted-average time to cash flows (years); modified duration estimates the % price change per 1% yield move.
- Premium, par, or discount bond?
- Premium: coupon > yield. Par: coupon = yield. Discount: coupon < yield.
- What is yield to maturity (YTM)?
- The single discount rate that equates a bond's price to the present value of its cash flows if held to maturity.
- What is the yield curve?
- A plot of yield against maturity. It is usually upward-sloping; inversion often precedes recessions.
- Forward vs future?
- A forward is customized OTC, settled at maturity, with counterparty risk. A future is standardized, exchange-traded, and marked to market daily.
- What does marking to market mean?
- Revaluing a position to current market price. Futures are marked to market daily, which limits counterparty risk.
- What is a margin account (futures)?
- Collateral posted to cover potential losses; a margin call demands more when the balance falls below maintenance margin.
- Cost-of-carry forward price (no income)?
- Forward price F0 equals the spot S0 grown at the risk-free rate to delivery: F0 = S0 × eʳᵀ (continuous compounding).
- What is a swap?
- An agreement to exchange cash-flow streams (classically fixed for floating interest). It behaves like a series of forwards.
- Plain-vanilla interest-rate swap?
- One party pays a fixed rate and receives a floating rate (e.g., SOFR) on a notional, netted each period.
- What is a call option?
- The right, not the obligation, to BUY the underlying at the strike by expiry.
- What is a put option?
- The right, not the obligation, to SELL the underlying at the strike by expiry.
- Long call payoff?
- Profits when the underlying rises above strike + premium; loss is limited to the premium paid.
- Long put payoff?
- Profits when the underlying falls below strike − premium; loss is limited to the premium paid.
- American vs European option?
- American can be exercised any time up to expiry; European only at expiry.
- What is intrinsic vs time value?
- Intrinsic value is what the option is worth if exercised now; time value is the rest of the premium, reflecting remaining uncertainty.
- Put-call parity (European)?
- c + X·e⁻ʳᵀ = p + S0. A call plus the present value of the strike equals a put plus the underlying.
- What is a straddle?
- Buying a call and a put at the same strike — a bet on a large move in either direction.
- What is a covered call?
- Holding the underlying and writing a call on it; collects premium but caps the upside.
- What is a protective put?
- Holding the underlying and buying a put to cap downside losses (like insurance).
- What is a central counterparty (CCP)?
- A clearinghouse that becomes buyer to every seller and seller to every buyer, netting and margining to cut systemic counterparty risk.
- Counterparty-risk mitigants?
- Netting agreements, collateral (margin), and central clearing.
- What is contango?
- A futures curve where futures prices exceed the expected spot, giving a negative roll yield for a long position.
- What is backwardation?
- A futures curve where futures prices are below the spot, giving a positive roll yield for a long position.
- What is basis risk?
- The risk that the hedge instrument's price and the hedged asset's price do not move exactly together.
- What is a credit default swap (CDS)?
- A contract where the buyer pays a periodic premium and the seller pays out if a reference entity defaults — insurance on credit.
- Money-market vs capital-market instruments?
- Money-market instruments mature in ≤ 1 year (T-bills, commercial paper); capital-market instruments are longer (bonds, equities).
- What is an exchange-traded fund (ETF)?
- A pooled fund that trades on an exchange like a stock, usually tracking an index, with intraday liquidity.
- VaR in one sentence?
- The loss not expected to be exceeded over a horizon at a confidence level (e.g., 1-day 99% VaR).
- Three ways to compute VaR?
- Parametric (variance-covariance), historical simulation, and Monte Carlo simulation.
- Parametric VaR method?
- Assumes a distribution (usually normal) and computes VaR from σ and a z-score; understates fat-tail and non-linear risk.
- Historical simulation VaR?
- Re-prices the portfolio over actual past returns and reads VaR off the loss distribution; assumes the past repeats.
- Monte Carlo VaR?
- Simulates many random scenarios from a model; flexible for non-linear products but computationally heavy and model-dependent.
- Square-root-of-time rule?
- VaR(T) = VaR(1) × √T — scales 1-day VaR to T days, valid only for i.i.d. returns with zero mean.
- z-scores for 95% and 99% VaR?
- About 1.65 for 95% and 2.33 for 99% (one-tailed). Higher confidence gives a larger VaR.
- Parametric VaR quick formula?
- VaR ≈ z × σ × portfolio value (for a zero-mean horizon); add the mean if non-zero.
- Main weakness of VaR?
- It says nothing about the size of losses beyond the cutoff, and it is not always subadditive.
- What is expected shortfall (ES)?
- The average loss given that the loss exceeds VaR (conditional VaR). It captures tail severity.
- Why is ES preferred over VaR?
- ES is a coherent risk measure (subadditive), so diversification never increases it; VaR can violate subadditivity.
- Four properties of a coherent risk measure?
- Monotonicity, subadditivity, positive homogeneity, and translation invariance.
- What confidence level did Basel adopt for ES?
- The market-risk framework moved from 99% VaR toward a 97.5% expected-shortfall measure.
- What is backtesting?
- Comparing predicted VaR to realized losses to check a model is calibrated; too many exceptions means the model is wrong.
- Black-Scholes-Merton inputs?
- Underlying price, strike, time to expiry, risk-free rate, and volatility — assuming lognormal prices and no arbitrage.
- Which BSM input is unobservable?
- Volatility — which is why traders back out implied volatility from market option prices.
- What is implied volatility?
- The volatility that makes a model price equal the option's market price.
- What is the volatility smile?
- The pattern where implied volatility varies by strike (higher for deep in/out-of-the-money), contradicting constant-vol assumptions.
- What is delta?
- An option's price change for a one-dollar move in the underlying; the basis of delta-hedging.
- What is gamma?
- How fast delta itself changes; it is largest near the money and drives how often a delta hedge must be rebalanced.
- What is vega?
- An option's sensitivity to a change in volatility; long options are long vega.
- What is theta?
- An option's sensitivity to the passage of time (time decay); long options are short theta.
- What is rho?
- An option's sensitivity to a change in interest rates; usually the smallest Greek.
- What is delta-hedging?
- Offsetting an option's delta with the underlying to neutralize small price moves; must be rebalanced as delta changes (gamma).
- What is stress testing?
- Estimating losses under severe but plausible scenarios (historical or hypothetical) to probe tail events VaR can miss.
- Historical vs hypothetical stress scenario?
- Historical re-runs a real event (e.g., 2008); hypothetical invents a plausible shock (e.g., a sovereign default).
- What is model risk?
- The risk that a model is wrong or wrongly used, leading to mispriced positions or understated risk.
- What is the binomial option model?
- A discrete tree of up/down price moves used to value options, especially American-style; it converges to Black-Scholes.
- What is risk-neutral valuation?
- Pricing a derivative by discounting its expected payoff under risk-neutral probabilities at the risk-free rate.
- What is a key-rate (partial) duration?
- Sensitivity of a bond's price to a change in one specific point on the yield curve, holding others fixed.
- What is incremental VaR?
- The change in portfolio VaR from adding (or removing) a position.
- What is marginal VaR?
- The change in portfolio VaR for a small change in a position's size; used to allocate risk.
- What is component VaR?
- The part of total portfolio VaR attributable to a position; component VaRs sum to total VaR.
- What is market risk?
- The risk of loss from moves in market prices — interest rates, equities, FX, and commodities.
- What is VaR mapping?
- Decomposing positions into standard risk factors so portfolio VaR can be computed from factor volatilities and correlations.
- What is non-parametric VaR?
- VaR estimated from the empirical loss distribution (e.g., historical simulation) without assuming a distribution shape.
- What is the worst-case scenario measure?
- An expected-loss measure focused on the most adverse outcome over a horizon, beyond standard VaR.
- What is the FRTB?
- The Fundamental Review of the Trading Book — Basel's overhaul of market-risk capital, including the shift to expected shortfall.
- Trading book vs banking book?
- Trading book holds positions for short-term resale (mark-to-market, market-risk capital); banking book holds to maturity (credit-risk capital).
- What is the standardized vs internal-models approach?
- Standardized uses regulator-set rules; internal-models lets approved banks use their own VaR/ES models for capital.
- What is a risk factor?
- A market variable (a rate, index, or price) whose movements drive a portfolio's value.
- What is volatility risk?
- Exposure to changes in volatility itself — important for options portfolios (vega risk).
- What is curve (yield-curve) risk?
- Risk from non-parallel shifts in the yield curve, not just level changes — captured by key-rate durations.
- What is liquidity-adjusted VaR?
- VaR widened to reflect the cost or time of unwinding a position in an illiquid market.
- What is a coherent vs non-coherent measure here?
- ES is coherent and is now favored for trading-book capital; VaR's lack of subadditivity is a key reason for the switch.
- What is credit risk?
- The risk of loss from a borrower or counterparty failing to meet its obligations.
- What is a credit rating?
- An agency's opinion of default risk; investment grade is BBB−/Baa3 and above, high yield (junk) below it.
- What is a credit spread?
- The extra yield over a risk-free benchmark that compensates for credit risk; it widens as perceived default risk rises.
- Structural vs reduced-form default model?
- Structural (Merton) treats default as equity falling to zero; reduced-form models default as a random hazard event.
- The Merton model idea?
- Equity is a call option on the firm's assets; default occurs when asset value falls below debt at maturity.
- What is counterparty credit risk?
- The risk the other side of a derivative defaults before settling; managed with netting, collateral, and clearing.
- What is a credit valuation adjustment (CVA)?
- The price adjustment for the expected loss from a counterparty's possible default on a derivative.
- What is wrong-way risk?
- When exposure to a counterparty rises just as its default probability rises (the two are positively correlated).
- What is netting?
- Offsetting positive and negative exposures with the same counterparty to a single net amount, cutting credit exposure.
- What is a recovery rate?
- The fraction of an exposure recovered after default; LGD = 1 − recovery rate.
- What is credit VaR?
- A VaR-style measure of unexpected credit loss over a horizon at a confidence level.
- What is securitization?
- Pooling loans and issuing tranched securities (e.g., CDOs) with different seniority and risk; senior tranches absorb losses last.
- What is a default correlation?
- How likely counterparties are to default together; high correlation concentrates portfolio credit risk and is modeled with copulas.
- Definition of operational risk?
- Loss from failed internal processes, people, and systems, or external events. Includes legal risk; excludes strategic and reputational risk.
- Examples of operational risk?
- Fraud, cyberattacks, system outages, model error, settlement failures, and natural disasters.
- What is operational resilience?
- A firm's ability to keep delivering critical operations through disruption — cyber, third-party, and business-continuity risk.
- Basel Standardized Approach for op risk?
- Sizes operational-risk capital from a business indicator (scaled income) and a bank's internal loss history.
- What is a loss-event database?
- A record of internal (and external) operational-loss events used to model frequency and severity.
- Frequency vs severity in op risk?
- Frequency = how often losses occur (often Poisson); severity = how large each loss is (often a fat-tailed distribution).
- What is scenario analysis (op risk)?
- Expert-driven estimates of rare, high-impact events that historical data alone cannot capture.
- What is a key risk indicator (KRI)?
- A forward-looking metric that signals rising operational risk (e.g., failed-trade rate, employee turnover).
- What is cyber risk?
- The risk of loss from attacks on or failures of information systems; a growing focus of operational resilience.
- What is third-party (vendor) risk?
- Operational risk arising from reliance on outsourced providers and suppliers.
- What is business continuity planning?
- Pre-arranged plans and backups to maintain or quickly restore critical operations after a disruption.
- What is model risk management?
- Governance over model development, validation, and use to limit losses from wrong or misused models.
- Funding vs market liquidity risk?
- Funding: cannot meet cash needs as they fall due. Market: cannot sell a position quickly without moving its price.
- What is the Liquidity Coverage Ratio (LCR)?
- A Basel III ratio: enough high-quality liquid assets to survive 30 days of stressed net cash outflows (≥ 100%).
- What is the Net Stable Funding Ratio (NSFR)?
- A Basel III ratio: available stable funding ÷ required stable funding ≥ 100% over a one-year horizon.
- What is a liquidity spiral?
- Forced selling depresses prices, triggering margin calls and more selling — funding and market liquidity reinforce each other.
- What is the bid-ask spread as a liquidity cost?
- The gap between buy and sell prices; wider spreads mean higher market-liquidity cost to trade.
- What is funds-transfer pricing (FTP)?
- Internally charging business units for the cost of the liquidity and funding they consume.
- What is a high-quality liquid asset (HQLA)?
- An asset that can be sold quickly with little price loss in stress (e.g., cash, central-bank reserves, top sovereign bonds).
- What is a deposit run-off assumption?
- An estimate of how fast deposits leave in stress; a key LCR input (retail deposits run off slower than wholesale).
- What is cash-flow gap analysis?
- Mapping expected inflows and outflows over time buckets to spot funding shortfalls.
- What is the role of a treasury function?
- Manages a firm's funding, liquidity, and balance-sheet risk, including FTP and the liquidity buffer.
- What is contingent funding risk?
- The risk that off-balance-sheet commitments (e.g., credit lines) are drawn just when funding is scarce.
- What is asset-liability management (ALM)?
- Managing the mismatch between the timing/rate of assets and liabilities to control interest-rate and liquidity risk.
- What is risk transfer?
- Shifting a risk to another party, e.g., via insurance, derivatives, or securitization.
- What is reputational risk?
- The risk of loss from damage to a firm's reputation; excluded from the Basel operational-risk definition but managed separately.
- What is strategic (business) risk?
- Risk to earnings from poor business decisions or adverse industry shifts; excluded from operational risk.
- What is concentration risk?
- Loss from large exposure to a single counterparty, sector, or risk factor; limits and diversification control it.
- What is the efficient frontier?
- The set of portfolios giving the highest expected return for each level of risk.
- What is the capital market line (CML)?
- The line from the risk-free asset through the market portfolio; the best risk-return tradeoff using total risk.
- What is the security market line (SML)?
- The CAPM graph of required return vs beta; a security above it is undervalued.
- What is alpha?
- Return above what CAPM (or a benchmark) requires for the risk taken; a measure of skill.
- What is tracking error?
- The standard deviation of a portfolio's active return versus its benchmark.
- What is a risk limit?
- A pre-set cap on exposure (e.g., a VaR or notional limit) used to control risk-taking.
- What is enterprise economic capital?
- The aggregate capital a firm holds for all risks, accounting for diversification across risk types.
- What is the cost-of-equity hurdle in RAROC?
- RAROC must exceed the firm's cost of equity for the activity to create shareholder value.
- What is conditional probability?
- The probability of A given B has occurred: P(A|B) = P(A and B) ÷ P(B).
- What are independent events?
- Events where one occurring does not change the probability of the other: P(A and B) = P(A)·P(B).
- Expected value of a random variable?
- The probability-weighted average of its possible outcomes.
- What is a quantile?
- A cut point dividing a distribution; VaR is essentially a quantile of the loss distribution.
- What is the law of large numbers?
- As the sample grows, the sample mean converges to the true population mean.
- What is stationarity in time series?
- A series whose statistical properties (mean, variance) do not change over time.
- What is an AR(1) model?
- A first-order autoregressive model where today's value depends on yesterday's value plus noise.
- What is the bias-variance tradeoff?
- More complex models reduce bias but raise variance (overfitting); the goal is the balance that generalizes best.
- What is principal component analysis (PCA)?
- A technique that reduces correlated factors to a few uncorrelated components (e.g., level, slope, curvature of the yield curve).
- What is a hazard rate?
- The instantaneous probability of an event (e.g., default) given survival so far; central to reduced-form models.
- What is open interest?
- The total number of outstanding futures/options contracts not yet closed; a gauge of market activity.
- What is a floating-rate note (FRN)?
- A bond whose coupon resets periodically to a reference rate plus a spread; little interest-rate duration.
- What is accrued interest?
- Interest earned since the last coupon; the buyer pays it (dirty price = clean price + accrued interest).
- What is a callable bond?
- A bond the issuer can redeem early; it has negative convexity and a higher yield to compensate the holder.
- What is a putable bond?
- A bond the holder can sell back early; this option benefits the holder, so it carries a lower yield.
- What is the swap rate?
- The fixed rate that makes a new interest-rate swap's value zero at inception.
- What is a currency (FX) swap?
- Exchanging principal and interest in one currency for those in another; manages cross-currency funding.
- What is a commodity forward?
- An OTC agreement to buy/sell a commodity later at a set price; pricing includes storage and convenience yield.
- What is convenience yield?
- The benefit of holding the physical commodity rather than a future; it lowers the forward price.
- What is a forward rate agreement (FRA)?
- An OTC contract locking in an interest rate on a notional for a future period.
- What is the underlying of an equity index future?
- A stock index (e.g., S&P 500); cash-settled to the index level at expiry.
- What is short selling?
- Borrowing and selling an asset to profit from a price fall, then buying it back; risk is theoretically unlimited.
- What is a repo (repurchase agreement)?
- A short-term secured loan: sell a security and agree to buy it back later at a higher price (the repo rate).
- What is the difference between a primary and secondary market?
- Primary = new issues raise capital for the issuer; secondary = existing securities trade among investors.
- What is conditional VaR (CVaR)?
- Another name for expected shortfall — the average loss beyond VaR.
- What is a VaR exception (breach)?
- A day on which the actual loss exceeds the VaR estimate; too many in backtesting signals a bad model.
- What is the delta-normal method?
- A parametric VaR approach that maps positions to risk factors and assumes normal factor returns.
- What is full revaluation in VaR?
- Re-pricing every position under each scenario (vs a delta approximation); more accurate for non-linear products.
- Why does VaR understate options risk?
- A linear (delta) approach ignores gamma — the non-linear payoff curvature of options.
- What is the Greeks-based hedge of a portfolio?
- Neutralizing delta, then gamma and vega, to immunize an options book against small and larger moves.
- What is the lognormal assumption in BSM?
- Asset prices are lognormally distributed, so log-returns are normal and prices stay positive.
- What is early-exercise value?
- The extra value of an American option's ability to exercise before expiry (relevant for puts and dividend-paying calls).
- What is a risk-factor sensitivity (DV01)?
- The dollar value change in a position for a one-basis-point move in rates.
- What is mapping a bond to risk factors?
- Decomposing its cash flows onto standard maturity buckets to compute VaR from key-rate volatilities.
- What is the coherence failure of VaR?
- VaR can be larger than the sum of sub-portfolio VaRs (non-subadditive), penalizing diversification — ES fixes this.
- What is extreme value theory (EVT)?
- A statistical approach that models the tail of a loss distribution directly, improving extreme-quantile (VaR/ES) estimates.
- What is a stressed VaR?
- VaR calibrated to a historical period of significant stress, required alongside current VaR under Basel.
- What is the default risk charge (FRTB)?
- A separate market-risk capital charge for issuer default in the trading book.
- What is a non-modellable risk factor (NMRF)?
- A risk factor without enough real price data to model; FRTB applies an add-on capital charge.
- What is the expected shortfall horizon in FRTB?
- ES is computed at 97.5% with liquidity horizons varying by risk factor.
- What is a sensitivities-based method (SBM)?
- FRTB's standardized approach using delta, vega, and curvature sensitivities to set capital.
- What is interest-rate risk in the banking book (IRRBB)?
- Risk to a bank's earnings and value from rate moves on banking-book assets and liabilities.
- What is mapping FX risk?
- Decomposing positions into currency exposures to aggregate FX VaR.
- What is gap risk?
- The risk of a sudden price jump that a continuous hedge cannot keep up with (e.g., overnight gaps).
- What is volatility (vega) risk in a book?
- Loss from changes in implied volatility, not the underlying price; large in options portfolios.
- What is a hypothetical P&L for backtesting?
- P&L from holding the portfolio static, used to test VaR against price moves only.
- What is the IRB approach (Basel)?
- Internal Ratings-Based approach: approved banks estimate PD (and LGD/EAD in advanced IRB) for credit capital.
- Foundation vs advanced IRB?
- Foundation: bank estimates PD only; regulator sets LGD/EAD. Advanced: bank estimates PD, LGD, and EAD.
- What is a transition (migration) matrix?
- A table of probabilities that a rating moves to another rating over a period, including default.
- What is point-in-time vs through-the-cycle PD?
- Point-in-time reflects current conditions; through-the-cycle averages over the economic cycle for stability.
- What is a CDS spread telling you?
- The market's implied annual cost to insure against default — a real-time gauge of credit risk.
- What is a collateralized debt obligation (CDO)?
- A securitization that tranches a pool of credit exposures into senior, mezzanine, and equity slices.
- What is the equity tranche of a CDO?
- The first-loss, highest-risk, highest-yield slice; it absorbs initial defaults.
- What is the senior tranche of a CDO?
- The last-loss, lowest-risk, lowest-yield slice; protected by the junior tranches below it.
- What is single-name vs portfolio credit risk?
- Single-name is one borrower's default; portfolio adds default correlation across many borrowers.
- What is netting + collateral's effect on EAD?
- They reduce exposure at default, lowering counterparty capital and CVA.
- What is a credit limit?
- A cap on exposure to a counterparty or sector to control concentration of credit risk.
- What is debt valuation adjustment (DVA)?
- The mirror of CVA — the gain from a firm's own default risk on its derivative liabilities.
- What is the business indicator (BI) in op-risk capital?
- A financial-statement-based proxy for op-risk exposure (interest, services, financial components).
- What is the internal loss multiplier (ILM)?
- A scalar in the Standardized Approach that raises op-risk capital for banks with a worse loss history.
- What is a risk-and-control self-assessment (RCSA)?
- A structured process where business units identify their risks and rate the strength of controls.
- What is the difference between a near-miss and a loss event?
- A near-miss could have caused a loss but did not; both are logged to improve controls.
- What is severity distribution fitting?
- Choosing a (often fat-tailed) distribution for loss size, then combining with frequency to model annual loss.
- What is operational VaR?
- A VaR-style estimate of operational loss over a year at a high confidence level.
- What is fraud risk?
- Operational-risk loss from internal or external deception; a major op-risk category.
- What is settlement (Herstatt) risk?
- The risk that one side of a trade pays but the other fails to deliver, especially across time zones in FX.
- What is a critical operation (resilience)?
- A service whose disruption would harm customers or financial stability; resilience planning protects it first.
- What is an impact tolerance?
- The maximum acceptable level of disruption to a critical operation before serious harm occurs.
- What is the liquidity buffer?
- A stock of HQLA a firm holds to absorb stressed outflows without fire sales.
- What is wholesale vs retail funding?
- Wholesale (interbank, repo, large deposits) is cheaper but flightier; retail deposits are stickier in stress.
- What is maturity transformation?
- Funding long-term assets with short-term liabilities — profitable but a core source of liquidity risk.
- What is a run on a bank?
- A rapid withdrawal of funding (deposits/wholesale) that can make a solvent firm fail for lack of liquidity.
- What is encumbrance of assets?
- Pledging assets as collateral; over-encumbrance reduces the unencumbered HQLA available in stress.
- What is intraday liquidity risk?
- The risk of not having cash to meet payment obligations during the day, even if end-of-day liquidity is fine.
- What is a haircut on collateral?
- A discount to a security's market value when used as collateral, to cover price and liquidity risk.
- What is the role of the central bank as lender of last resort?
- Providing emergency liquidity to solvent but illiquid institutions to prevent contagion.
- What is a survival horizon?
- How long a firm can meet obligations under a stress scenario using its liquidity buffer alone.
- What is liquidity-adjusted return?
- Performance measured net of the cost of holding liquidity buffers and funding.
- What is risk aggregation?
- Combining risks across positions and types into a firm-wide view, accounting for diversification and correlation.
- What is a stress test vs a scenario analysis?
- Stress test measures impact of a defined shock; scenario analysis explores a broader narrative of joint events.
- What is the cost of carry?
- The net cost of holding an asset (financing + storage − income); it links spot and forward prices.
- What is value of information in decisions?
- The expected improvement in outcome from reducing uncertainty before acting; underlies model and data investment.
- What is overfitting?
- A model that fits noise in the training data and generalizes poorly out of sample.
- What is a Sharpe ratio limitation?
- It uses total volatility and assumes normal returns, so it understates risk for fat-tailed or skewed return series.
- What is a zero-coupon (spot) rate?
- The yield on a single cash flow at one maturity; the building block for discounting and the par/forward curves.
- What is a forward rate?
- An interest rate agreed today for borrowing/lending over a future period, implied by spot rates.
- What is the underlying of a CDS?
- A reference entity's credit; the protection seller pays on a defined credit event (default, restructuring).
- What is roll yield?
- The gain or loss from rolling an expiring futures contract into a later one; positive in backwardation, negative in contango.
- What is a coherent measure's translation invariance?
- Adding cash to a portfolio reduces its risk measure by that cash amount.
- What is the difference between ES and worst-case loss?
- ES is the average of tail losses; worst-case is the single most adverse outcome in the scenario set.
- What is volatility scaling of VaR?
- Updating VaR with a current (EWMA/GARCH) volatility estimate rather than a long historical average.
- What is the put-call parity use in risk?
- It lets you build synthetic positions and check option prices for arbitrage-free consistency.
- What is a liquidity horizon (FRTB)?
- The assumed time to exit or hedge a risk factor in stress; longer horizons raise the ES capital charge.
- What is curvature risk (FRTB)?
- The additional risk from the non-linear (gamma) response of options, captured beyond delta and vega.
- What is a P&L attribution test?
- An FRTB check that a desk's risk model explains its actual daily P&L well enough to use internal models.
- What is expected positive exposure (EPE)?
- The average of expected counterparty exposure over time; a key input to CVA and counterparty capital.
- What is potential future exposure (PFE)?
- A high-percentile estimate of future counterparty exposure over the life of a trade.
- What is a default event in a CDS?
- A trigger (failure to pay, bankruptcy, restructuring) that obliges the protection seller to pay.
- What is the loss data approach (LDA)?
- Modeling annual operational loss by combining fitted frequency and severity distributions, often via Monte Carlo.
- What is a control vs a key risk indicator?
- A control reduces a risk's likelihood/impact; a KRI is a metric that signals the risk is rising.
- What is the difference between LCR and NSFR horizons?
- LCR covers a 30-day acute stress; NSFR ensures stable funding over a one-year horizon.
- What is a deposit beta?
- How much a bank's deposit rate moves when market rates move; it drives funding cost and ALM risk.
- What is collateral transformation?
- Swapping lower-quality assets for HQLA (e.g., via repo) to meet liquidity or margin needs; it can add risk.