Venture Capital interview preparation
Sourcing, unit economics, term sheets, cap tables, fund economics and the India venture market. Every question is either traced to a named firm from a public candidate report, or tagged at desk level when we could not trace it — answers lead with the point, then the mechanism, then the limitation.
100 questions, mapped to the firms that asked them
- Questions
- 100
- Traced to a firm
- 31
- Firms
- 12
- Updated
- September 2026
021What is the SaaS magic number, and what does a reading of 0.5 tell you?Growth equitySaaS-focused funds
Say this
Magic number is the annualised increase in quarterly recurring revenue divided by the prior quarter's sales and marketing spend. A reading of 0.5 says every dollar of sales and marketing bought fifty cents of annual recurring revenue, which implies a payback of about two years. That is a hold, not a spend signal.
Then walk it
- Formula: (current quarter revenue minus prior quarter revenue) times four, divided by prior quarter sales and marketing expense. The times four annualises it, and the one-quarter lag reflects that spend converts with a delay.
- Reading it: above 1.0 means gross payback inside a year, so step on the accelerator. Between 0.75 and 1.0 is healthy. Below 0.75 means fix the funnel before adding budget. Below 0.5 usually means the segment or the channel is wrong.
- So 0.5 implies roughly 24 months to recover the acquisition cost on a gross-revenue basis, and longer on a gross-profit basis. At that level, raising more money to hire more reps makes the company worse, not bigger.
- What I would do about it rather than just diagnose it: split the number by segment and channel. Usually one motion is at 1.2 and another is at 0.2, and the blended 0.5 is hiding the fact that they should stop selling to the small accounts.
- The weaknesses, which you should volunteer: it uses revenue rather than gross profit, so it flatters low-margin businesses. It is noisy quarter to quarter for small companies. And it treats sales and marketing as a single lump when brand spend and quota-carrying rep cost have completely different lags.
- Which is why in practice I would look at it alongside CAC payback on a gross-profit basis and the burn multiple. Magic number is the quickest read; it is not the deepest one.
Where candidates lose it
Getting the formula slightly wrong — forgetting to annualise, or using the current quarter's sales and marketing spend instead of the prior quarter's. And treating the benchmark as a verdict rather than splitting it by segment, which is where the actual insight is.
Expect next
- How does that differ from the burn multiple?
- What is a good magic number at Series B versus Series D?
- If it is 0.4, what do you tell the CEO to do on Monday?
022Explain the rule of forty and when it stops being useful.Growth equitySaaS-focused funds
Say this
Revenue growth rate plus profit margin should sum to at least forty. It is a trade-off rule: the market will fund growth or profit, but it wants to see that you are deliberately choosing, not accidentally failing at both. It stops being useful at small scale and when the margin definition gets fuzzy.
Then walk it
- The arithmetic: 60 percent growth with a minus 20 percent margin scores 40. So does 10 percent growth with a 30 percent margin. Both pass; they are completely different companies and would be valued very differently.
- Which margin? Convention has settled on free cash flow margin, because EBITDA margin in software lets you hide stock compensation and capitalised software development. Ask which one the company is using — the gap is often 15 points.
- Why it works as a screen: it captures the real question of whether growth is being bought at a sustainable price, in one number a board can hold management to.
- Where it breaks. First, at small scale: a company going from $2m to $6m of revenue is growing 200 percent with a minus 150 percent margin, which scores 50 and means nothing. The rule is designed for $50m-plus businesses.
- Second, it treats a point of growth and a point of margin as equally valuable, and the market does not. At a given score, the market has historically paid a meaningful premium for the growth-heavy version, because growth compounds and margin does not.
- Third, it says nothing about durability. A company hitting 40 on a base with 85 percent net retention is on a treadmill, and a company hitting 35 with 125 percent retention is a far better asset. So I would use the rule to start the conversation and net retention to finish it.
Where candidates lose it
Reciting the rule without asking which margin. Companies quote EBITDA when it flatters them and free cash flow when that does. Also applying it to early-stage companies where it produces nonsense — knowing the scale at which the rule applies is half of understanding it.
Expect next
- Which margin definition would you insist on?
- Would you rather have 50 percent growth at minus 10, or 20 percent growth at plus 20?
- What does the rule miss entirely?
023Walk me through a cohort analysis and tell me what you are actually looking for.Early-stage VCGrowth equity
Say this
Group customers by the month they joined, then track each group forward over time. You are looking for three things: whether the curve flattens, whether later cohorts sit above earlier ones, and whether revenue per cohort grows after the curve flattens.
Then walk it
- Build it as a triangle. Rows are join months, columns are months since joining, cells are the share of the cohort still active or the revenue they generate. Then read down the columns to compare cohorts and across the rows to see decay.
- First thing I look for: does the retention curve asymptote? A curve that flattens at 40 percent means you have a real product for 40 percent of the people you acquire. A curve that keeps sliding toward zero means you have a leaky bucket and paid acquisition is just filling a hole.
- Second: cohort quality over time. Later cohorts should retain better, because the product improved and targeting sharpened. If your newest cohorts are worse, either you are scaling into a lower-quality channel or the early cohorts were friends and design partners.
- Third, and this is where the money is: dollar retention within a flattened cohort. If month-24 revenue from a cohort exceeds month-1 revenue despite losing customers, the survivors are expanding and the business compounds without new sales.
- A concrete read: a consumer app at 25 percent D30 that flattens at 18 percent by month 6 is a real product. The same app sliding to 3 percent by month 6 is a paid-marketing treadmill regardless of how good the top-line growth chart looks.
- The two traps in the data itself: small recent cohorts look artificially good because they have not had time to churn, and a company that changed its pricing or its target segment mid-way has cohorts that are not comparable. Always ask what changed between cohorts.
Where candidates lose it
Describing the mechanics of building the table and never saying what a good one looks like. The whole value is in the three reads: flattening, cohort-over-cohort improvement, and dollar expansion. Also accepting aggregate retention — an aggregate number can look stable while every individual cohort is deteriorating, because new cohorts keep refilling it.
Expect next
- What does a flattening curve tell you that an aggregate churn number cannot?
- What D30 retention would you want for a consumer app?
- How would you spot a leaky bucket from the cohort table?
024Give me the formulas for net revenue retention, gross retention and churn, and tell me which can exceed one hundred percent.Growth equitySaaS-focused funds
Say this
All three measure the same cohort a year later. Gross retention counts only what you kept and is capped at 100 percent. Net retention adds expansion and can exceed 100. Churn is what you lost over what you started with. Neither retention figure includes revenue from new customers.
Then walk it
- Gross revenue retention: starting ARR of a cohort, less churn and downgrades, divided by starting ARR. Expansion excluded, so it can never break 100 percent.
- Net revenue retention: starting ARR, less churn and downgrades, plus upsell and expansion, divided by starting ARR. Above 100 means the existing base grows on its own.
- Gross churn is one minus gross retention. Logo churn counts customers, not dollars, and the two diverge sharply — losing thirty small accounts and keeping two big ones can mean 30 percent logo churn and 95 percent dollar retention.
- Benchmarks worth knowing cold: best-in-class enterprise SaaS runs gross retention above 90 and net above 120. Mid-market sits around 85 and 105 to 110. SMB runs materially lower on both because small customers go out of business.
- Why it decides valuation: net retention above 115 percent means the business compounds without selling anything new, which is precisely what justifies a high revenue multiple. It is the single most predictive number in a software diligence.
- The manipulation to watch for: companies quoting net dollar retention on a subset — 'customers over $100k ACV' — which is always the best slice. Ask for it on the whole book, and ask whether it is calculated on a cohort or on a rolling trailing-twelve-month basis, because those give different answers.
Where candidates lose it
Mixing new-customer revenue into the retention calculation. It is a cohort metric and including new business flatters it badly. And not knowing which one can exceed 100 percent — that single detail reveals immediately whether you have ever actually built the number.
Expect next
- What does 140 percent net retention with 30 percent logo churn tell you?
- Which matters more for valuation, growth or net retention?
- How would you calculate net retention for a usage-based pricing model?
025A company shows net revenue retention of 140 percent and logo churn of 30 percent. What is going on?Growth equitySaaS-focused funds
Say this
A small number of large accounts are expanding hard while a long tail of small accounts is falling out the bottom. The 140 is real but it is concentration, not health, and the business has two entirely different customer bases being reported as one.
Then walk it
- Mechanically: if your top 10 percent of accounts double and your bottom 30 percent disappear, dollars grow while customer count shrinks. Both numbers are honest and together they describe a business that only works upmarket.
- The first thing I would ask for is the retention table split by initial contract size. I would expect something like 130 percent net retention above $100k ACV and 60 percent below $20k. That split is the actual finding.
- Why it matters: the company is spending sales and marketing to acquire small customers who leave, which drags the blended payback out. If they stopped selling to the bottom segment, revenue growth would slow and efficiency would jump sharply.
- The risk in the 140 is concentration. Ask what share of revenue the top ten accounts represent. If it is over 40 percent and the expansion is usage-based, one customer's budget cycle can flip the whole retention number negative.
- Also test whether the expansion is real adoption or a pricing artefact. A seat-based product growing with customer headcount compounds. Expansion driven by a one-time land-and-expand from a pilot to an enterprise licence does not repeat.
- The conclusion I would take to the partnership: this is probably a good enterprise business wearing a bad SMB business as a costume. The diligence question becomes whether they can kill the low end without breaking the growth story they have sold to previous investors.
Where candidates lose it
Reading the 140 as unambiguously good and stopping. Paired with 30 percent logo churn it is a signal about segment mix, not quality. The candidates who do well here immediately ask for the metrics split by cohort and contract size rather than commenting on the blended figures.
Expect next
- What would you tell them to do about the low end?
- How much customer concentration would make you pass?
- How do you tell adoption-driven expansion from a pricing artefact?
026If revenues get hit in a quarter, what would you do as CFO to preserve cash flow?Silver LakeTechnology, Media and Telecom · San Francisco · 2022
Say this
Work in order of reversibility and speed: first the levers that cost nothing to pull and can be undone, then working capital, then discretionary spend, then headcount last. And before any of it, establish whether the quarter is a timing issue or a demand issue, because the answer is completely different.
Then walk it
- Diagnose first. A slipped enterprise deal that closes in six weeks is a timing problem and you do not restructure the company around it. A cohort that stopped converting is a demand problem and you act hard.
- Fastest reversible levers: freeze discretionary spend — travel, events, consultants, new tooling — and pause the hiring pipeline without touching existing staff. That typically finds 10 to 15 percent of operating expense within a quarter and can be switched back on.
- Working capital next, because it is cash without cutting the business. Tighten collections and chase the ageing receivables, move new contracts to annual upfront with a discount rather than monthly, and stretch payables where the supplier relationship tolerates it. Annual prepay is the single biggest lever in a software business.
- Then capital expenditure and committed spend: defer the office build-out, renegotiate the cloud commitment, and look hard at the software stack, where most companies are paying for 30 percent more seats than they use.
- Headcount last, and if you do it, do it once and deeply enough that you do not have to come back. Repeated small cuts destroy more value through uncertainty than the cash they save. And protect the revenue-generating and product functions, because you still have to grow out of this.
- Then the financing side, which is the real CFO job: extend runway to at least eighteen months, open a venture debt or revolver conversation while the numbers still look fine rather than after they do not, and tell the board in the quarter it happens, not the quarter after.
Where candidates lose it
Going straight to layoffs. It signals no sense of sequencing and it is the slowest source of cash once you account for severance. The structure they want is reversible-before-irreversible, and the diagnosis — timing versus demand — before any of it. Mentioning annual prepay and receivables is what marks out someone who has actually looked at a cash flow.
Expect next
- How much runway would you insist on holding?
- When would you take venture debt instead of cutting?
- How do you decide whether it is a timing problem or a demand problem?
Reported by candidates at Silver Lake (Technology, Media and Telecom, San Francisco, 2022). Source: Wall Street Oasis.
027What metrics would you look at when valuing a retail company?Silver LakeTechnology, Media and Telecom · San Francisco · 2022
Say this
Same-store sales growth, gross margin, sales per square foot, inventory turns, and the payback on a new store. Retail is a unit-level business, so I would value the existing store base on cash flow and the growth story on how many more units can earn their cost of capital.
Then walk it
- Same-store or like-for-like sales growth is the single most important number, because it strips out the flattering effect of opening stores. A chain with 30 percent revenue growth and minus 2 percent same-store sales is buying growth with capital.
- Unit economics of a new store: build-out cost, time to maturity, steady-state four-wall EBITDA, and therefore payback. Good specialty retail pays back in 18 to 30 months. Beyond that, expansion destroys value.
- Working capital and inventory. Inventory turns, weeks of cover, and the markdown rate. Retail failures are almost always inventory failures first — the P&L looks fine while the balance sheet fills with unsold stock that later gets discounted through gross margin.
- Cost structure: occupancy as a share of sales, because it is fixed and it is what kills you when traffic falls, and labour. Then the operating leverage question — how much can sales fall before four-wall EBITDA goes negative.
- For an omnichannel or e-commerce-heavy retailer, add CAC and repeat rate, contribution margin after delivery and returns, and the return rate itself, which in apparel can run 30 percent and quietly destroys the reported gross margin.
- Valuation itself: EV/EBITDA against peers, adjusted for lease obligations, since capitalised leases are debt in substance and post-IFRS 16 they sit on the balance sheet. And a sanity check on EV per store against replacement cost, which sets the floor.
Where candidates lose it
Valuing it like a software company on a revenue multiple, or quoting only same-store sales without the new-store payback. And forgetting leases — a retailer with $2bn of lease obligations and a headline low EV/EBITDA is not cheap, and in a tech-focused fund this is exactly the trap the question is set to catch.
Expect next
- How do you treat operating leases in enterprise value?
- What is a good payback period on a new store?
- How does the answer change for a pure e-commerce retailer?
Reported by candidates at Silver Lake (Technology, Media and Telecom, San Francisco, 2022). Source: Wall Street Oasis.
028How do you calculate runway, and how much should a company hold?Early-stage VC
Say this
Cash on hand divided by net monthly burn, where net burn is cash out less cash in. The working answer since 2022 has been eighteen to twenty-four months at close of a round, because that is what it takes to hit milestones and still raise from a position of choice rather than necessity.
Then walk it
- Net burn, not gross burn. Gross burn is total cash out; net is after collections. A company with $1m of monthly costs and $400k of collections burns $600k, so $9m of cash is fifteen months, not nine.
- Use a forward burn, not a trailing one. If they are hiring against a plan, burn in month twelve will be materially higher than today. Investors who quote trailing burn always overstate runway.
- The eighteen-to-twenty-four-month convention exists because fundraising takes three to six months and you need to be raising on nine to twelve months of cash, not three. Below six months, the terms are set by your balance sheet rather than your business.
- So the real question is milestone runway, not calendar runway: is there enough cash to reach the metric that makes the next round obvious? Twenty-four months of cash that gets you to a number nobody will fund is worse than twelve that gets you to one they will.
- The default-alive test is the sharper version of this. At current growth in revenue and costs, does the company reach profitability before the cash runs out? If yes, it is default alive and has genuine optionality. If no, it is default dead and the next raise is not a choice.
- One caveat on the arithmetic: a company holding customer deposits or deferred revenue has cash it has already sold. Runway off the gross cash balance overstates it, and that is a real error in marketplace and prepay businesses.
Where candidates lose it
Using gross burn instead of net, or quoting cash balance divided by last month's burn when the plan doubles headcount next quarter. And giving only a calendar number — the follow-up is always 'runway to what milestone', so build that into the first answer.
Expect next
- What is default alive versus default dead?
- At what point do you tell a founder to cut?
- How much runway should they have when they start raising?
029How do the unit economics of a marketplace differ from a SaaS business?Consumer VCIndian venture capital
Say this
A marketplace has two customers and revenue is take rate on gross merchandise value, so the numbers to watch are contribution margin per transaction, liquidity, and repeat rate on both sides. SaaS has one customer and recurring contracted revenue, so retention and payback do most of the work.
Then walk it
- Start with the revenue definition, because this is where founders obscure things: GMV is not revenue. Net revenue is take rate times GMV, and a company quoting a $500m GMV run rate on a 4 percent take rate is a $20m revenue business.
- Contribution margin per order is the core metric, and it has to be after all variable cost: payment processing, delivery, support, refunds, and any incentive or discount funded by the company. Indian food delivery and quick commerce both spent years with negative contribution margin per order while reporting GMV growth.
- Liquidity is the marketplace-specific concept with no SaaS equivalent: what share of listings transact, and how fast. It is the real measure of product-market fit, and it can look fine nationally while being broken in every individual city.
- So you analyse marketplaces city by city or category by category, never in aggregate. The question is whether the oldest, most mature city is profitable at the unit level, because that city is the only evidence of what the others become.
- Retention works differently on both sides. Supply-side churn is often the harder problem and is under-reported — a marketplace losing 60 percent of its sellers a year is permanently re-acquiring supply. And disintermediation matters: once buyer and seller know each other, do they transact off-platform?
- The genuine advantage over SaaS is capital intensity and network effects: no cost of goods in the classic model, and each side makes the other more valuable. The genuine disadvantage is that revenue is transactional, not contracted, so it can fall 40 percent in a quarter in a way software revenue cannot.
Where candidates lose it
Accepting GMV as the growth metric. Every marketplace deck leads with it because it is the biggest number available. Ask for net revenue and contribution margin per order in the oldest city, and know the word liquidity — that is the vocabulary check.
Expect next
- How would you calculate CAC for a two-sided marketplace?
- What is disintermediation risk and how do you test for it?
- Which side would you subsidise and for how long?
030Walk me through the economic terms of a Series A term sheet.Early-stage VC
Say this
Four economic terms do almost all the work: valuation and the amount raised, the liquidation preference, the option pool, and anti-dilution. Everything else in the economic section is either market-standard or a rounding error, and the control terms sit separately.
Then walk it
- Valuation and amount. Pre-money valuation plus the new money equals post-money, and the investor's ownership is new money over post-money. Get straight which one is being quoted, because a $20m pre and a $20m post on a $5m cheque are 20 percent and 25 percent respectively.
- Liquidation preference. Standard is 1x non-participating: on an exit, the investor takes the greater of their money back or their pro-rata share of the equity. Anything above 1x, or participating, is structure and prices the deal differently from what the headline valuation suggests.
- The option pool. Usually 10 to 15 percent, set aside for future hires, and critically it comes out of the pre-money — so the founders fund it. This is the single most commonly misunderstood term on the sheet and it moves the effective price more than a valuation haggle usually does.
- Anti-dilution. Broad-based weighted average is market. Full ratchet is aggressive and rare outside distressed rounds. It only bites on a down round, which is exactly when it hurts most.
- Then pro rata rights, which are economically the most valuable thing an early investor gets: the right to keep your percentage in later rounds. In a power-law portfolio, the ability to put more money into the one winner is where a large share of fund returns actually comes from.
- And the control side, so you show you know the difference: board composition, protective provisions, drag-along, and information rights. Those are not economics, but a founder who trades a point of valuation for a lost board seat has made a much worse deal than they think.
Where candidates lose it
Listing terms without saying which ones matter. Interviewers want a hierarchy. And missing that the option pool comes out of the pre-money — get that wrong and your ownership maths is wrong, which is the whole reason the question gets asked.
Expect next
- Which of those terms would you give up to win a competitive deal?
- What is the option pool shuffle?
- What is the difference between 1x participating and 1x non-participating?
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.
