Equity Research interview preparation
Sell side and buy side. 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
- 72
- Firms
- 45
- Updated
- September 2026
049How do you build a short thesis, and how is it different from a long?Bank of AmericaInvestment Banking · New York · 2023
Say this
A short needs a catalyst and a timeline in a way a long does not, because the payoff is capped, the loss is unlimited, and you pay to hold it. Valuation alone is never a short thesis.
Then walk it
- The asymmetry: the most you make is 100 percent, the most you lose is unlimited, and the position grows against you as it moves the wrong way. That inverts the position sizing logic.
- Carry costs: you pay the borrow fee and you owe the dividend. A hard-to-borrow name can cost 20 percent a year, which means being right slowly is the same as being wrong.
- So the thesis must have a mechanism and a clock: an accounting problem that surfaces at a specific filing, a refinancing wall, a patent expiry, a competitor launch, guidance that cannot be met.
- The strongest short categories are structural decline the market is extrapolating, accounting and cash conversion problems, balance sheet stress, and promotional management with a history.
- 'It is expensive' is not a thesis. Expensive things stay expensive for years, and short squeezes happen precisely in the crowded expensive names.
- And check the crowding before you enter: days to cover, short interest as a percentage of float, and options positioning. A crowded short with a stretched balance sheet on the other side is how funds get carried out.
Where candidates lose it
Pitching a short on valuation with no catalyst. That is the single most common failure, and experienced investors will immediately ask what makes it happen and what the borrow costs. Have both answers.
Expect next
- What is the borrow cost?
- How crowded is the short?
- How would you size it differently from a long?
Reported by candidates at Bank of America (Investment Banking, New York, 2023). Source: Wall Street Oasis.
051How do you assess management quality?MorningstarEquity Research · Chicago · 2023
Say this
By their record on capital allocation, not by how impressive they are in a meeting. Look at what they bought, what they returned, what they promised and what they delivered.
Then walk it
- Capital allocation first: the returns on the acquisitions they made, whether buybacks were executed at low or high valuations, and whether reinvestment earned above the cost of capital.
- Promises versus delivery: pull guidance from three and five years ago and compare it to what happened. Chronic over-promising is the most reliable negative signal available.
- Incentive structure: what are they actually paid on? EPS targets encourage buybacks and acquisitions regardless of value; ROIC or total shareholder return targets align better. Read the remuneration section, because it predicts behaviour.
- Insider ownership and trading: meaningful personal ownership relative to their salary matters far more than the raw percentage.
- Communication quality: do they disclose the metrics that would reveal a problem, or only the flattering ones? Did the definition of the adjusted metric change when it stopped working? Changing the goalposts is a red flag.
- And behaviour in the bad period. Anyone looks good in an upcycle. How they behaved in the last downturn, whether they cut the right things and whether they were honest about it, is the real test.
Where candidates lose it
Relying on impressions from management meetings. Good management teams are selected for being persuasive, so charisma is an unreliable signal. The evidence is in the capital allocation record and the remuneration policy.
Expect next
- What is the best evidence of poor capital allocation?
- How do incentives change behaviour?
- What would you ask a CEO in a one-on-one?
Reported by candidates at Morningstar (Equity Research, Chicago, 2023). Source: Wall Street Oasis.
052What would you ask a CEO or CFO in a one-on-one meeting?Moody'sCorporate Finance · New York · 2018
Say this
Ask what you cannot get from the filings: intent, trade-offs and things they have decided not to do. Never ask for a number that is already disclosed.
Then walk it
- Capital allocation intent: what returns do you require from an acquisition, and how does that compare to buying back your own stock at today's price? The answer reveals whether they think in returns or in empire.
- Trade-offs: if you had to choose between defending margin and defending share next year, which do you choose? This forces a real answer rather than a rehearsed one.
- Competitive reality: which competitor worries you most and why? CEOs answer this more candidly than they should, and it is genuinely informative.
- Leading indicators: what internal metric do you watch weekly that we do not see? Sometimes they name it, and now you know what to ask about every quarter.
- Then the question that surfaces the risk: what would have to go wrong for you to miss the plan? The hesitation matters as much as the answer.
- Then listen for what they avoid. In a thirty-minute meeting the topics they steer away from are usually the ones worth modelling.
Where candidates lose it
Asking questions answered in the last filing. Access is scarce and wasting it marks you as unprepared. Every question should be about judgement, intent or something not disclosed.
Expect next
- What if their answers contradicted the filings?
- How much weight do you put on management meetings?
- How would you verify what they told you?
Reported by candidates at Moody's (Corporate Finance, New York, 2018). Source: Wall Street Oasis.
053How would you check a company's claims independently?Point72Investment Research · New York · 2026
Say this
Triangulate from sources the company does not control: customers, suppliers, competitors, ex-employees, regulatory filings, import and export data, job postings and pricing you can observe yourself.
Then walk it
- Channel checks: talk to distributors, customers and competitors. If a company claims it is taking share, the people losing it will know.
- Alternative data: web traffic, app downloads, credit card panels, satellite imagery of car parks or storage tanks, shipping and customs data. Each is noisy alone but they corroborate.
- Public records nobody reads: regulatory filings in other jurisdictions, patent filings, litigation dockets, local permits, and the subsidiary accounts filed in countries with granular disclosure.
- Hiring data: job postings reveal expansion plans, technology stacks and which functions are growing, usually before anything is announced.
- Cross-check within the filings themselves: segment disclosures, the tax footnote and geographic breakdowns often disagree with the narrative in the press release.
- And the boundary that matters professionally: everything must be from public or properly sourced channels, with no material non-public information from an insider. In a hedge fund interview, saying that unprompted is the right instinct, because it is a compliance question as much as a research one.
Where candidates lose it
Not mentioning the compliance boundary. In a multi-manager or hedge fund interview, an enthusiastic answer about getting information from insiders is disqualifying. Name public sourcing and expert-network rules explicitly.
Expect next
- What are the compliance limits on expert calls?
- How do you weigh noisy alternative data?
- Give me an example where a check changed your view.
Reported by candidates at Point72 (Investment Research, New York, 2026). Source: Wall Street Oasis.
058How is sell-side research paid for, and how has that changed?Sell-side research
Say this
Historically it was bundled into trading commissions. MiFID II in Europe forced research to be priced and paid for separately, which shrank budgets, cut analyst headcount and concentrated payments on fewer providers.
Then walk it
- The old model: asset managers paid commissions on trades and the broker provided research, corporate access and execution as a bundle. Research looked free and was not.
- MiFID II required unbundling in Europe from 2018, so asset managers had to pay for research explicitly, either from their own profit and loss or from a client-funded research payment account.
- The consequence: most large managers chose to pay from their own P&L, which made research a direct cost, so budgets fell sharply. Coverage of small and mid caps thinned because it was not worth paying for.
- The industry consolidated. Payments concentrated on a handful of top-ranked analysts per sector, and many junior roles disappeared.
- Other revenue routes remain important: corporate access, which is arranging meetings between companies and investors, bespoke work, and the connection to the equity capital markets franchise, since a bank with a strong analyst wins more IPO mandates.
- Rules have since been loosened in places, including moves to permit rebundling in the UK and EU, so the direction is not settled. Knowing that there has been a partial reversal is what separates a current answer from a textbook one.
Where candidates lose it
Not knowing about unbundling at all. If you are interviewing for a sell-side research seat, the economics of the product you would be producing is fair game, and not knowing it suggests you have not thought about the industry's direction.
Expect next
- What has that done to coverage of small caps?
- What is corporate access?
- Is research a profit centre?
060Why do sell-side ratings skew toward buy, and how should an investor read that?Sell-side researchAsset management
Say this
Structural incentives. Maintaining management access, supporting the bank's corporate relationships, and the fact that most clients are long-only and cannot act on a sell. So the information is in the changes, not the levels.
Then walk it
- Access: a sell rating can cost the analyst management meetings, which degrades the product they sell to clients.
- Banking relationship: although research and banking are formally separated, a hostile rating complicates the wider corporate relationship, and analysts are aware of that.
- Client base: most institutional clients are long-only and can only buy or not buy. A sell recommendation is actionable for only a minority, so it is worth less commercially.
- The result is a distribution heavily weighted to buy and hold, where a hold often functions as a sell and a sell is a strong statement.
- So the way to read it: ignore the absolute rating and watch the changes. A downgrade from buy to hold from a respected analyst carries far more information than the rating itself.
- And read the estimate revisions rather than the words. The numbers move before the ratings do, and estimate revision momentum has historically been a more reliable signal than the published recommendation.
Where candidates lose it
Treating the skew as a scandal rather than an incentive structure. The sophisticated answer explains the mechanism and then converts it into a practical rule: trade the revisions, not the ratings.
Expect next
- So what signal do you actually use?
- How does that change how you write a note?
- What is estimate revision momentum?
061How would you analyse an insurance company?Perella Weinberg PartnersFinancial Institutions Group · New York · 2026
Say this
Two businesses in one: underwriting and investing. Judge underwriting on the combined ratio and investing on the return on the float. Value it on price to book against return on equity.
Then walk it
- The combined ratio is the core underwriting metric: claims plus expenses divided by premiums. Below 100 means underwriting profit; above 100 means they lose money on insurance and rely on investment income.
- The float is the money collected as premiums before claims are paid. A company with a combined ratio under 100 is effectively being paid to hold other people's money, which is the whole Berkshire insight.
- Reserving is where the judgement and the risk sit. Reserves are estimates of future claims, so an under-reserved insurer looks profitable until it does not. Watch reserve development, which shows whether prior years' estimates proved too low.
- The investment portfolio matters for duration and credit risk. A long-tail insurer holds long assets, so it is highly rate-sensitive on both sides.
- Valuation is price to book against ROE, like a bank. Life insurers add embedded value and the new business margin, because the economics span decades.
- And know the cycle: insurance pricing is cyclical, hardening after large loss events and softening when capital floods in. Where you are in that cycle drives the sector's earnings more than any single company's skill.
Where candidates lose it
Treating it as a normal company with revenue and margin. The distinctive content is the combined ratio, the float and reserve adequacy. Missing reserving means missing the main way insurers surprise negatively.
Expect next
- What is reserve development and why does it matter?
- How do rising rates affect an insurer?
- How would you value a life insurer differently?
Reported by candidates at Perella Weinberg Partners (Financial Institutions Group, New York, 2026). Source: Wall Street Oasis.
063Which equities have duration?BlackRockRisk and Quantitative Analysis · New York · 2026
Say this
Any equity whose cash flows sit far in the future. High-growth companies with earnings expected years out behave like long bonds, while stable high-yielding mature businesses are shorter duration.
Then walk it
- Duration in equities means the weighted average time to the cash flows. A company earning little today and a lot in a decade has most of its value in distant cash flows, so its value is highly sensitive to the discount rate.
- So unprofitable high-growth technology is the longest-duration equity there is, which is why it falls hardest when yields rise.
- Conversely, a mature high-dividend business returns cash now, so its duration is shorter and it is less rate-sensitive on the discount channel, though it may compete with bonds for income investors.
- Utilities and infrastructure are an interesting case: long contracted cash flows make them long duration, and heavy leverage adds a second rate exposure. They behave like bond proxies.
- Value stocks are generally shorter duration than growth, which is a large part of why the value-growth relative performance tracks real yields so closely.
- The practical implication for a portfolio: equity duration is a factor exposure you can measure and hedge, and on a risk platform it will be monitored explicitly rather than left implicit.
Where candidates lose it
Treating duration as purely a fixed income concept. The question is testing whether you can transfer it. Naming the value-growth spread as a duration trade is the answer that shows real fluency.
Expect next
- How would you measure it?
- Why does value outperform when real yields rise?
- How would you hedge equity duration?
Reported by candidates at BlackRock (Risk and Quantitative Analysis, New York, 2026). Source: Wall Street Oasis.
065How would you allocate a $100 million mandate across a portfolio of funds?MSCIRisk Management · Remote · 2013The Vanguard GroupInvestment Research · Malvern · 2024
Say this
Start from the objective and the constraints, not from the funds. Required return, risk tolerance, liquidity needs, time horizon and any restrictions. Then build the strategic asset allocation, then select managers within it.
Then walk it
- Establish the mandate first: what return is required, over what horizon, with what drawdown tolerance, what liquidity is needed and what restrictions apply. Everything follows from these.
- Set the strategic asset allocation across asset classes. That decision drives the large majority of the variance in outcomes; manager selection is second-order.
- Then decide active versus passive by asset class. Use passive where markets are efficient and active where dispersion is high and there is evidence of persistent skill.
- Then select managers on process rather than past returns. Understand the source of the edge, whether the team is stable, whether assets have grown beyond the capacity of the strategy, and what the fee structure does to net returns.
- Then look at the combination rather than each fund alone. Correlation between managers is what determines portfolio risk, and three managers running the same factor exposure is one position with three fee loads.
- Then build in the governance: rebalancing rules, review triggers, and a plan for what would cause redemption. Deciding the sell criteria in advance is what prevents performance-chasing.
Where candidates lose it
Jumping straight to picking funds. The correct structure is objectives, then asset allocation, then managers, then monitoring. Also, ignoring correlation between managers, which is the most common real-world error in multi-manager portfolios.
Expect next
- What risk-return targets would you set for an institutional investor?
- How do you judge whether a manager has skill or luck?
- How would you build a portfolio for different client needs?
Reported by candidates at MSCI (Risk Management, Remote, 2013); The Vanguard Group (Investment Research, Malvern, 2024). Source: Wall Street Oasis.
066How do you distinguish manager skill from luck?Asset managementMulti-manager allocation
Say this
You mostly cannot from returns alone, because the sample is too short. So you examine the process, the consistency of the attribution, and whether the returns come from the stated edge rather than from an unintended factor bet.
Then walk it
- The statistical problem: distinguishing a genuinely skilled manager from a lucky one at conventional confidence levels can require decades of monthly returns. Three or five years tells you very little.
- So use attribution instead. Decompose returns into market beta, factor exposures and residual alpha. A manager whose returns are explained by a persistent small-cap value tilt is selling you beta at alpha fees.
- Check consistency with the stated process. If they claim bottom-up stock selection but the returns are explained by sector allocation, the process and the outcome do not match, which is a warning.
- Look at the breadth of the record: how many independent decisions produced it? A concentrated fund with three big winners has a much weaker statistical case than a diversified one with a consistent hit rate.
- Then the qualitative work: is the team stable, has the strategy scaled beyond its capacity, and has the process changed after the good years?
- The honest conclusion is that manager selection is genuinely hard and that the base rate of persistent outperformance after fees is low. An allocator who says that sounds more credible than one who claims a reliable method.
Where candidates lose it
Answering 'look at the track record and the Sharpe ratio'. The point of the question is that returns data is statistically almost useless over realistic horizons. Attribution and process are the substance.
Expect next
- How long a record would you need?
- What is capacity and why does it matter?
- Would you fire a manager after two bad years?
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.

