Financial Analysis interview preparation

Questions

100

Traced to a firm

42

Firms

28

Updated

September 2026

Asked at

All firmsMoody's7Bain Capital3SSState Street3AMAres Management2BLBlackRock2DED.E. Shaw2MSMorgan Stanley2Oaktree Capital Management2S&P Global2Bridgewater Associates1Citadel1FTFranklin Templeton1Golub Capital1HWHarris Williams1Houlihan Lokey1J.P. Morgan1Jane Street1MWMarshall Wace1Millennium Management1Morningstar1PIMCO1Sycamore Partners1TSTruist Securities1Two Sigma1Vanguard1WMWellington Management1Wells Fargo Securities1Wolverine Trading1

Topic

All topicsThree statements9Accounting policy and standards5Working capital and cash7Ratio analysis8Forecasting and budgeting9Variance and management reporting7Unit economics and costing8Capital budgeting7Cost of capital and valuation7Markets and rates5Modelling, Excel and data8Business partnering6Brainteasers and estimation4Fit and career10

Level

AnyCoreIntermediateHard

Type

AnyTechnicalCaseBrainteaserMarket viewFit

1. 037Your forecast has missed by more than 10 percent three quarters running. What do you do?Forecasting and budgetingHardcase studyCorporate FP&ABusiness finance

   Say this

   Decompose the misses before changing anything. If the errors are all in one direction it is bias and the fix is process and incentives. If they are scattered it is variance and the fix is the model and the driver set. You cannot treat bias and variance the same way.

   Then walk it

   1. First, measure properly. Forecast error by line, by business unit, by owner, over eight quarters, with the sign preserved. Mean error tells you bias; mean absolute error tells you precision. Most organisations only track the second and then wonder why nothing improves.
   2. Second, separate the miss into volume, price, mix and timing. Three quarters of missing on timing is a completely different problem from missing on price, and the conversation goes to different people.
   3. Third, look at who submits the numbers and what happens to them when they are wrong. If sandbagging is rewarded and optimism is punished, you have designed the bias in, and no amount of model work will fix it.
   4. Fourth, fix the drivers. If revenue is forecast off a pipeline whose conversion assumption has never been back-tested, that is the error source. Replace judgement with realised rates wherever history exists.
   5. Fifth, change the output format. Move from a single number to a range with a named central case, and publish the forecast-versus-actual scorecard monthly with owners' names on it. Visibility corrects bias faster than any methodology change.
   6. The realistic expectation I would set: getting mean absolute error from 12 percent to 5 is a two- or three-quarter programme, not a month, and some businesses are genuinely unforecastable at that precision. Saying so is more credible than promising accuracy.

   Where candidates lose it

   Going straight to 'build a better model'. The most common cause is incentive-driven bias, not model error, and the diagnostic that separates them is whether the errors share a sign. Lead with that.

   Expect next

   • How would you present the bias finding to the business head who caused it?
   • What accuracy is realistic for a project business?
   • Would you change anyone's incentives?
2. 040Revenue beat budget by 6 percent but gross margin came in 200 basis points below. Explain it.Variance and management reportingHardtechnicalCorporate FP&ABusiness finance

   Say this

   Most likely you bought the revenue. Either you discounted, or the growth came from the lower-margin part of the portfolio, or input costs rose and you could not pass them on. A mix and price decomposition tells you which within an hour.

   Then walk it

   1. Run price, volume and mix on gross margin. That immediately separates discounting from mix, which are the two dominant causes and have completely different implications.
   2. Discounting shows up as an adverse price variance concentrated in specific customers or the last few weeks of the quarter. That is a commercial discipline problem and it repeats next quarter.
   3. Mix shows up as volume favourable and realisation down with list prices intact. If the growth came from the entry-level SKU or from a low-margin channel like a marketplace, margin falls by design and the right response may be to celebrate it.
   4. Input cost is the third: raw material, freight, power, or an unfavourable FX rate on imports. Check purchase price variance against standard and check whether a price increase was due and did not happen.
   5. Then the accounting-only explanations, which are worth eliminating early: absorption of fixed overhead over a different volume, an inventory provision taken into cost of goods sold, or a reclassification between cost of sales and operating expenses.
   6. The conclusion I would present: 6 percent more revenue at 200 basis points less margin on a 30 percent gross margin base is roughly flat gross profit in rupees. So the honest headline is that we grew revenue and earned nothing extra for it, and here is which of the four causes did it.

   Where candidates lose it

   Reporting the revenue beat as good news. Convert both movements into rupees of gross profit before you conclude anything. And do not offer a cause without the decomposition, because guessing between discounting and mix is a coin flip.

   Expect next

   • How would you stop end-of-quarter discounting?
   • What if the growth is all in the new low-margin channel?
   • How does fixed overhead absorption distort this?
3. 041A cost centre came in under budget. Why might that be bad news?Variance and management reportingHardtechnicalCorporate FP&ABusiness finance

   Say this

   Because a favourable variance against a fixed budget can just mean the activity did not happen. Before I call it a saving I flex the budget for actual volume and check whether the underspend is a deferral, a phasing difference or a capability we have quietly stopped funding.

   Then walk it

   1. First, flex it. If the budget assumed 100 units of activity and you did 80, a variable cost line should be 20 percent lower. Reporting that as a saving against the original budget is simply wrong, and flexed budgeting exists to stop it.
   2. Second, test whether it is timing. Maintenance deferred, recruitment delayed, a marketing campaign slipped to next quarter. That is not a saving, it is a liability with a later date, and it will make next quarter look terrible.
   3. Third, ask what did not get done. Underspent training, safety maintenance, IT security or R&D produces a favourable variance this year and a problem in two. This is the version that damages the business while flattering the pack.
   4. Fourth, check for an accrual error. Missing invoices and under-accrued costs look identical to an underspend until the true-up lands.
   5. So on the monthly pack I would label variances as volume-driven, timing or genuine run-rate, and only the third counts as a saving. Without that split, cost variance reporting is close to meaningless.
   6. This is also where standard costing earns its keep. Splitting a materials variance into price and usage tells you whether procurement bought cheaper or the plant wasted less, and those are different wins with different owners.

   Where candidates lose it

   Accepting a favourable variance at face value. The interviewer wants to hear 'flex the budget for volume' and 'separate timing from run-rate'. Naming deferred maintenance as the dangerous case is what makes it sound like experience.

   Expect next

   • How would you present timing variances so nobody claims them as savings?
   • What is the difference between a materials price and usage variance?
   • How do you stop under-accrual creating false savings?
4. 050Why does reported profit differ between absorption costing and marginal costing?Unit economics and costingHardtechnicalCost accountingBig Four

   Say this

   Because of fixed overhead sitting in inventory. Absorption costing puts fixed factory overhead into the cost of each unit, so any unit you make but do not sell carries some of this year's fixed cost into next year. Marginal costing charges all fixed overhead to the period.

   Then walk it

   1. The rule: if production exceeds sales, absorption profit is higher, because fixed overhead is deferred in closing inventory. If sales exceed production, absorption profit is lower, because you are releasing last period's deferred overhead.
   2. A number makes it clear. Fixed overhead of 10 lakh, production 10,000 units, so 100 rupees absorbed per unit. Sell 8,000 and 2 lakh of fixed cost sits in inventory rather than the P&L, so absorption profit is 2 lakh higher than marginal.
   3. Which means absorption costing lets you increase reported profit by producing for stock. That is a genuine perverse incentive and it is one reason plant managers on profit targets build inventory.
   4. Ind AS 2 and IAS 2 require absorption costing for statutory inventory valuation, so you have no choice externally. Marginal costing is a management technique for decisions.
   5. So the practical split: absorption for the statutory accounts, contribution and marginal costing for every decision about pricing, product mix, make or buy and special orders. Using absorbed full cost for a pricing decision leads you to reject profitable business.
   6. The other trap is over- or under-absorption. If actual volume differs from the volume used to set the overhead rate, you get a variance that has nothing to do with efficiency, and it needs to be explained separately or it pollutes the margin story.

   Where candidates lose it

   Saying the difference is 'just presentation'. It is a real profit difference driven by inventory movement, and the direction is determined by production versus sales. Getting the direction backwards is the standard failure here.

   Expect next

   • Which gives a truer picture of performance?
   • How does over-absorption arise and where does it go?
   • Which would you use to decide whether to drop a product line?
5. 051A customer wants 20,000 units at a price below your full cost. Do you take the order?Unit economics and costingHardtechnicalCost accountingBusiness finance

   Say this

   If the price is above variable cost and you have spare capacity, it adds profit, so on the arithmetic yes. But I would only recommend it if the order does not displace better business and does not reset the price for everyone else.

   Then walk it

   1. The arithmetic first. Full cost 100, of which 70 variable and 30 absorbed fixed. Offer price is 85. Every unit adds 15 of contribution, so 20,000 units adds 3 lakh of profit, because the fixed 30 is being paid anyway.
   2. So the accounting answer is clear, and the reason candidates get this wrong is they compare price with full cost. Fixed cost is irrelevant to an incremental decision unless the order causes it to change.
   3. Then the conditions. Is there genuinely spare capacity, or does this displace full-price volume? If it displaces, the relevant cost includes the contribution you give up, and the answer usually flips.
   4. Does it trigger a step cost? Overtime, a second shift, additional tooling, extra freight or a special packaging run all count as incremental cost even though they look fixed on the standard cost sheet.
   5. Then the commercial risks, which is where finance earns its seat. Price leakage to existing customers, grey-market resale back into your own market, most-favoured-customer clauses, and the precedent that this buyer now expects 85 forever. In an export or institutional channel those risks are managed by segmentation and contract terms.
   6. So my recommendation would be: accept as a contained one-off with a defined volume cap, different packaging or channel, and a written statement that it is not a list price change. And I would name the margin dilution it will show in the monthly pack so nobody is surprised.

   Where candidates lose it

   Rejecting it because the price is below full cost. That is the textbook error the question exists to catch. But saying yes with no conditions is the other half of the trap, because the real answer includes displacement and price-leakage risk.

   Expect next

   • What if you are already at full capacity?
   • How would you stop the price leaking to existing customers?
   • Where does the contribution show up in the monthly variance pack?
6. 052Here are a few figures about an airline. Work out what it should charge for a ticket, and ask me for anything else you need.Unit economics and costingHardcase studyBain CapitalGeneralist · Boston · 2024

   Say this

   I would build cost per available seat kilometre, convert it to cost per seat on the route, divide by the load factor to get cost per sold seat, then add a margin. Before that I need four things: seats per aircraft, sector length, load factor and the split of fixed versus variable cost.

   Then walk it

   1. The structure: total operating cost per flight divided by seats gives cost per seat. Divide by the expected load factor, say 80 percent, and cost per sold seat rises by 25 percent. That step is the one candidates skip and it is the largest single adjustment.
   2. A worked illustration. If a flight costs 15 lakh to operate with 180 seats, that is about 8,300 per seat. At 80 percent load, cost per sold passenger is about 10,400. Add a 10 percent margin and the average fare needs to be around 11,500.
   3. Then I would ask what I am solving for, because the answer differs. The average fare needed to break even on the route is one question; the price of the marginal seat two days before departure is another, and there the only relevant cost is a few hundred rupees of fuel, catering and commission.
   4. That marginal-cost logic is why airlines use dynamic pricing. The same seat is worth 3,000 in a seat-sale ten weeks out and 18,000 to a business traveller on the day, and the fixed cost of the flight is sunk either way.
   5. The inputs I would keep asking for: fuel as a share of cost, aircraft ownership or lease cost per hour, crew and airport charges, ancillary revenue per passenger, and the competitive fare on the route. Ancillary matters enormously for a low-cost carrier; baggage and seat fees can be 15 to 20 percent of revenue.
   6. And the conclusion I would state: cost tells you the floor, competition and willingness to pay tell you the price. In a market with a dominant low-cost competitor, the cost-plus number is often simply unachievable, and then the decision is whether to fly the route at all.

   Where candidates lose it

   Dividing cost by total seats and quoting that as the fare. You must divide by load factor. The second trap is not asking questions: the interviewer deliberately gave you partial data, and the questions you ask are half of what is being marked.

   Expect next

   • What is the marginal cost of the last seat sold?
   • How would ancillary revenue change your answer?
   • A competitor prices 20 percent below your floor. What do you do?

   Reported by candidates at Bain Capital (Generalist, Boston, 2024). Source: Wall Street Oasis.

7. 053How would you build a loyalty programme for a rideshare business, and how would you know if it worked?Unit economics and costingHardcase studyJane StreetProduct and Strategy · New York · 2026

   Say this

   Treat it as an investment with a measurable return, not a marketing scheme. The programme costs you contribution per redeemed reward and buys incremental trips from riders who would otherwise switch. If you cannot measure the incremental trips, do not launch it.

   Then walk it

   1. Start with the economics of one trip: fare, driver payout, payment and support cost, leaving a contribution of maybe 15 to 20 percent of fare. Every rupee of reward comes straight out of that, so the programme has to move behaviour, not just reward it.
   2. Segment before designing. The high-frequency commuter is already loyal and paying them is pure margin leakage. The target is the mid-frequency multi-app user, four to eight trips a month, who is genuinely switchable. That is where incremental trips live.
   3. Design levers: earn rate, tiers with a threshold just above the target segment's current frequency, rewards that cost you less than they are worth to the rider such as priority matching or a waived cancellation fee rather than cash discounts, and expiry to cap the liability.
   4. Then the two supply-side pieces people forget. Loyalty that promises faster pickup requires driver density, so the reward may need a driver-side incentive to be deliverable. And a growing points balance is an accounting liability under Ind AS 115, deferred revenue for unredeemed points.
   5. Measurement is the whole answer: run it as a geo or user-level randomised holdout. Compare trips per user, retention and contribution per user between treated and control. Without a control group you will credit the programme with trips it did not cause, which is how most loyalty programmes are declared successful.
   6. The kill criteria I would write down before launch: incremental contribution per rupee of reward cost above one within two quarters, and no more than a set share of rewards going to users whose frequency did not change. If it fails either, shut it.

   Where candidates lose it

   Designing features without unit economics or a control group. The interviewer wants contribution per trip, a target segment that is actually switchable, and a holdout test. Cash discounts to your existing best customers is the answer that fails.

   Expect next

   • How would you size the incremental trips before launching?
   • What is the accounting liability for unredeemed points?
   • Would you fund it from the driver side or the rider side?

   Reported by candidates at Jane Street (Product and Strategy, New York, 2026). Source: Wall Street Oasis.

8. 056What is MIRR, and what problem is it solving?Capital budgetingHardtechnicalCorporate financeFinancial modelling

   Say this

   MIRR fixes the reinvestment assumption in IRR. Instead of assuming interim cash flows compound at the IRR, you compound them forward at your actual reinvestment rate, discount the outflows at the finance rate, and solve for the single rate that links the two.

   Then walk it

   1. Mechanically: take the future value of all positive cash flows at the reinvestment rate, take the present value of all negative cash flows at the finance rate, then find the rate that grows one into the other over the project life.
   2. Because of that, MIRR is always lower than IRR when IRR exceeds the reinvestment rate, and the gap widens with project length. A ten-year project showing a 32 percent IRR might carry a 19 percent MIRR at a 12 percent reinvestment rate. That gap is the fiction you were quoting.
   3. It also gives you a single unique answer, so it solves the multiple-IRR problem for projects with alternating cash flow signs.
   4. Where it matters most is private equity and infrastructure, where cash is returned in chunks across a long hold. An early dividend recap flatters IRR enormously and barely moves MIRR, which is exactly why sponsors quote IRR.
   5. Two honest weaknesses: you now have to assume a reinvestment rate, which is another estimate; and MIRR is still a rate, so it does not fix the scale problem. A big low-MIRR project can still create more value than a small high-MIRR one.
   6. So my ranking stays NPV first for the decision, MIRR when I want a defensible rate to communicate, and IRR only because everyone asks for it.

   Where candidates lose it

   Describing the formula without naming the reinvestment assumption it repairs. And do not claim MIRR is better than NPV. It is a better rate, not a better decision rule, and the scale problem remains.

   Expect next

   • What reinvestment rate would you assume?
   • Why do sponsors prefer quoting IRR?
   • Does MIRR solve the scale problem?
9. 058I give you a list of possible projects with their values and their costs, and a fixed budget. How do you choose?Capital budgetingHardcase studyBridgewater AssociatesGeneralist · New York · 2025

   Say this

   Rank by value per rupee of the constrained resource, not by absolute value. Compute the profitability index, NPV divided by the capital required, take them in descending order until the budget runs out, then check the combinations near the cut-off because the greedy answer is not always optimal.

   Then walk it

   1. Profitability index is present value of inflows over the initial investment, or equivalently one plus NPV over investment. Anything above one adds value; ranking by it maximises value per unit of the scarce resource.
   2. A quick illustration. Budget 100. Project A: NPV 30, cost 60, index 0.50. Project B: NPV 18, cost 40, index 0.45. Project C: NPV 16, cost 40, index 0.40. Greedy picks A then B for 48 of NPV on 100 spent. Picking B and C gives 34. So A plus B wins, but you only know that because you checked.
   3. The reason you check is indivisibility. Projects cannot be taken in fractions, so this is a knapsack problem, and greedy ranking can leave budget stranded. With a handful of projects, enumerate the combinations; with many, solve it as an integer programme, which Excel Solver will do.
   4. Then the constraints that make it a real decision rather than an arithmetic one: mutual exclusivity where two projects do the same thing, dependencies where B requires A, and non-capital constraints like scarce engineering time, which may be the binding resource rather than money.
   5. Then the multi-period version. A project may be delayable, so the question becomes which projects this year and which next, and a one-year delay on a positive-NPV project has a real cost you should quantify rather than assume away.
   6. And I would flag the strategic overlay: some low-index projects are mandatory, safety, regulatory or IT security, so they come out of the budget before ranking begins. Pretending everything competes on index is how compliance projects get deferred until they become a crisis.

   Where candidates lose it

   Ranking by NPV alone, which strands capital, or by IRR, which ignores scale. The word the interviewer wants is profitability index, followed immediately by the acknowledgement that indivisibility makes greedy ranking imperfect.

   Expect next

   • What if two of the projects are mutually exclusive?
   • What if the binding constraint is engineers, not money?
   • How would you handle a project you can delay by a year?

   Reported by candidates at Bridgewater Associates (Generalist, New York, 2025). Source: Wall Street Oasis.

10. 064Given a portfolio of three bonds, explain how the portfolio changes if duration increases.Cost of capital and valuationHardtechnicalPIMCOGeneralist · Los Angeles · 2026

    Say this

    Higher duration means more price sensitivity to rates. Portfolio duration is the market-value-weighted average of the three bonds' durations, so if it rises, the same 100 basis point move now costs or earns you more, and the portfolio has become a bigger bet on the direction of rates.

    Then walk it

    1. The mechanics: the percentage price change is roughly minus modified duration times the yield change. Move portfolio duration from 4 to 7 and a 100 basis point rise takes you from about minus 4 percent to about minus 7.
    2. Portfolio duration is weighted by market value, not by face value or by count. So you can raise it by swapping the short bond for a longer one, by shifting weight toward the longest bond, or simply because yields fell and the long bond is now a larger share of the portfolio.
    3. Duration also rises mechanically when coupons are lower or yields fall, because more of the present value sits further out. That is why a portfolio's duration drifts even when you trade nothing.
    4. At higher duration, convexity matters more. The linear duration estimate understates the gain when yields fall and overstates the loss when they rise, and the error grows with the size of the move, so for anything beyond about 100 basis points I would use duration plus convexity.
    5. The risk statement I would give a treasurer: you have increased carry and increased interest rate risk together. If the curve steepens against you, the long bond does most of the damage, and a 20 crore portfolio at duration 7 loses roughly 1.4 crore on a 100 basis point rise.
    6. And the limitation: duration only captures a parallel shift. Three bonds at different maturities are exposed to the shape of the curve, so I would also look at key-rate durations rather than one number.

    Where candidates lose it

    Saying only 'the portfolio gets riskier'. Give the numeric sensitivity, say that portfolio duration is market-value weighted, and name convexity and the parallel-shift assumption. Those three points are what the question is screening for.

    Expect next

    • How would you reduce duration without selling the long bond?
    • What does convexity add?
    • What if the curve steepens rather than shifts in parallel?

    Reported by candidates at PIMCO (Generalist, Los Angeles, 2026). Source: Wall Street Oasis.

Firm tags come from public, anonymous candidate reports on Wall Street Oasis: strong signal, not sworn testimony. Firms are named as the places a question was reported, not as partners of Fin Maverick. Answers are written for this page to show how to think out loud; they are not scripts to recite.