Equity Research interview preparation

Questions

100

Traced to a firm

72

Firms

45

Updated

September 2026

Asked at

All firmsMorningstar12Man Group6Balyasny Asset Management5BLBlackRock5FTFranklin Templeton5MSCI5Jefferies4CSCredit Suisse3Fidelity Investments3Moody's3Perella Weinberg Partners3Point723S&P Global3The Vanguard Group3WMWellington Management3Advent International2Apollo Global Management2Bank of America2Carlyle Group2DED.E. Shaw2Houlihan Lokey2HSBC2Piper Sandler2Sequoia Capital2SSState Street2Viking Global Investors2WBWilliam Blair2ACAQR Capital Management1BGBaupost Group1BMBNY Mellon1Centerview Partners1Coatue Management1Goldman Sachs1GSGuggenheim Securities1HWHarris Williams1Insight Partners1Invesco1Mizuho1Moelis & Company1MSMorgan Stanley1PIMCO1SCSchroders1Scotiabank1T. Rowe Price1TSTruist Securities1

Topic

All topicsResearch process9Stock pitch6Company analysis8Investment philosophy5Valuation14Modelling2Portfolio and risk8Macro8Sector knowledge2Accounting8Career and fit12Industry knowledge6Quantitative research1Sector: technology3Sector: consumer1Sector: healthcare1Sector: energy1Sector: financials2Sector: industrials1Case and estimation2

Level

AnyCoreIntermediateHard

Type

AnyTechnicalCaseFitBrainteaserMarket view

1. 006What areas of competitive advantage does this company have? Does it have barriers to entry, and can it sustain its revenue growth?Company analysisIntermediatecase studyMorningstarEquity Research · Chicago · 2023

   Say this

   Test the moat against the numbers rather than asserting it. A real competitive advantage shows up as returns on invested capital above the cost of capital, sustained for years, with stable or rising market share.

   Then walk it

   1. Name the source, and be specific. Intangibles like brand and patents, switching costs, network effects, cost advantage from scale or process, and efficient scale in a market too small for two players. Those five cover almost everything.
   2. Then prove it with evidence: ROIC consistently above WACC, gross margin stable through a downturn, pricing taken above inflation without volume loss, and customer retention.
   3. Then test durability directly. Ask what a well-funded competitor would have to do to take a customer, and how long it would take. If the answer is 'offer a lower price', there is no moat.
   4. On sustaining growth, separate the sources: price, volume, mix, new products, new geographies, and acquisitions. Growth from price and mix is high quality; growth from acquisitions is bought and should be valued differently.
   5. Then the honest test for a research note: is the moat widening, stable or narrowing? Morningstar's own framework is built on exactly that trend judgement, and it drives the fair value estimate far more than this year's earnings.

   Where candidates lose it

   Listing Porter's five forces as a memorised frame with no company-specific evidence. The grader wants the link from the qualitative claim to a number in the financials. No ROIC, no moat.

   Expect next

   • Is the moat widening or narrowing?
   • What return on capital does it earn against its cost of capital?
   • Would you rather own a low quality business at a great price or a high quality one at an okay price?

   Reported by candidates at Morningstar (Equity Research, Chicago, 2023). 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.