Fin Maverick
Foundations VocabularyAccounting & ReportingEconomics & MacroQuant Methods & ProgrammingBusiness & Company AnalysisCorporate Finance & ValuationBehavioural Finance
Banking & Market InfrastructureFixed Income & RatesDerivatives & Structured ProductsPublic EquitiesTransactions & DealsPortfolio ConstructionFunds & AMCs
Private Markets & AlternativesRisk, Treasury & ControlAI & Digital FinanceStochastic Calculus & PricingWealth & Personal FinanceIndian Markets & RegulationProfessional Practice
CalculatorComparison
Frameworks
Explore Bootcamps
Equity ResearchPortfolio ManagementMutual Fund MasteryInvestment Banking Analyst
Private Equity AnalystQuant & Hedge Fund AnalystBreaking Into VCFinancial Analyst Program
Risk Management ProgramPrivate Wealth ManagementDebt Capital MarketsDerivatives Foundation
Explore Free Courses

Equity Research6

Writing an Investment ThesisBuilding a Discounted Cash FlowReading an Annual Report FastReading a Sector Before a CompanySpotting Quality of Earnings Red FlagsBuilding a Revenue Forecast From Drivers

Portfolio Management3

Rebalancing: When, Why and What It CostsStrategic and Tactical Asset AllocationMeasuring Risk in a Portfolio

Mutual Fund Mastery3

Comparing Funds Without Being FooledHow a NAV Is Struck and Which Day You GetReading a Fund Factsheet Properly

Derivatives Unlocked4

Hedging a Real ExposureThe Greeks, PracticallyFutures, the Basis and What Moves ItReading an Option Payoff

AI For Finance2

Retrieval and Grounding for FinanceDocument Extraction in Finance

Breaking Into Quants4

Backtesting a StrategyHypothesis TestingCleaning Financial DataRegression for Finance

Breaking Into VC3

Sizing a MarketReading a Term Sheet as a FounderHow a Venture Round Actually Works

Financial Analyst Program4

Common Size and Trend AnalysisReading a Cash Flow StatementRatio Analysis That Says SomethingBuilding a Working Capital Schedule

Risk Management Program2

Credit Exposure and How It Is ReducedValue at Risk and What It Hides

Investment Banking Analyst3

Precedent Transactions and Why They DifferReading a Term Sheet StructurallyBuilding a Comparable Companies Table

Private Wealth Management3

Tax Aware Portfolio DecisionsBuilding a Client Risk ProfileGoal Based Planning Arithmetic

Debt Capital Markets3

Analysing an Issuer's CreditDuration and What It Does Not Tell YouBond Pricing and Yield Mechanics

Private Equity Analyst2

Fund Waterfalls and CarryThe LBO in Structure

Hedge Funds Analyst2

Short Selling MechanicsLong Short Mechanics
QuarksCourses
Explore Interview Preparation
Investment BankingEquity ResearchVenture CapitalistPrivate EquityHedge Funds
QuantFinancial AnalysisPrivate Wealth ManagementDebt Capital MarketsRisk Management
Derivatives FoundationPortfolio ManagementMutual Fund Mastery
PartnershipsShowdown
Log inSign up
Interview tracksAll
1Investment Banking
Question bankPuzzlesCase studies
2Equity Research
Question bankPuzzlesCase studies
3Venture Capital
Question bankPuzzlesCase studies
4Private Equity
Question bankPuzzlesCase studies
5Hedge Funds
Question bankPuzzlesCase studies
6Quant
Question bankPuzzlesCase studies
7Financial Analysis
Question bankPuzzlesCase studies
8Private Wealth Management
Question bankPuzzlesCase studies
9Debt Capital Markets
Question bankPuzzlesCase studies
10Risk Management
Question bankPuzzlesCase studies
11Derivatives Foundation
Question bankPuzzlesCase studies
12Portfolio Management
Question bankPuzzlesCase studies
13Mutual Fund Mastery
Question bankPuzzlesCase studies
009

Case 009Investment evaluation and pitchesCore

Pitch a telecom tower company on the thesis that 5G lifts tenancy from 1.6 to 2.0 per tower. Quantify the upside and the risks.

Millennium ManagementNew York · 2023

1The situation

Nabhoyan Towers owns 20,000 telecom towers. On average each tower hosts 1.6 tenants, mobile operators who each pay Rs 35,000 a month to put their equipment on it. Running a tower, ground rent, power, security and maintenance, costs about Rs 25,000 a month whatever the number of tenants. The company trades at 8x EV to EBITDA.

Your thesis: 5G needs far denser networks, so operators add equipment to existing towers and average tenancy rises to 2.0 within three years.

2Your task

Quantify the EBITDA upside, show what today's price implies, and name the risks with numbers.

Quick check

If tenancy rises from 1.6 to 2.0 with running cost unchanged, roughly how much does EBITDA rise?

Worked solution

Try it on paper, then open one step at a time.

30-second answerThe answer to give first

If tenancy reaches 2.0, EBITDA rises from Rs 744 crore to Rs 1,080 crore a year, up 45%, because almost every extra rupee of rent is profit. At today's 8x on current EBITDA, the stock costs only 5.5x the year 3 figure if the thesis plays out. The risks are concrete: each 0.1 of tenancy is worth Rs 84 crore of EBITDA, operator consolidation could take tenancy down instead, and rent resets on renewal could give back much of the gain.

Step 1Why does an extra tenant matter so much to a tower company?

A tower is a fixed-cost asset: the ground rent, guard and diesel are paid whether one operator or three hang equipment on it. Think of a wedding hall that costs the same to run whether it hosts one function a week or two; the second booking is almost pure profit. At 1.6 tenants a tower earns Rs 56,000 a month against Rs 25,000 of cost; at 2.0 tenants it earns Rs 70,000 against the same cost, so EBITDA per tower rises from Rs 31,000 to Rs 45,000. That is operating leverageWhen most costs are fixed, a small rise in revenue produces a much larger rise in profit, and a small fall a much larger fall., and it is the whole thesis.

One tower, one month, in rupees: the extra tenant falls straight to EBITDAcost 25,00031,000revenue 56,0001.6 tenants todaycost 25,000+14,00031,000revenue 70,0002.0 tenants after 5GEBITDA a year,20,000 towers744 crto1,080 cr+45%EBITDA from existing tenantsextra 0.4 tenant: all EBITDA
Each Nabhoyan tower's revenue rises from Rs 56,000 to Rs 70,000 a month as tenancy goes from 1.6 to 2.0, while running cost stays at Rs 25,000, so EBITDA across 20,000 towers rises from Rs 744 crore to Rs 1,080 crore a year, up 45%.
Step 2What does today's price already assume?

Enterprise value at 8x Rs 744 crore is about Rs 5,952 crore. If tenancy reaches 2.0, that same enterprise value is only 5.5x year 3 EBITDA, so the pitch is that the market is pricing the towers as if tenancy stays flat. The analyst's job is to show why it will not, with evidence an investor can check: operators' announced 5G rollout plans, new tenancy agreements signed each quarter, and the share of towers already hosting a second 5G radio.

Step 3What could make the pitch wrong, and by how much?

Put a number on each risk. Every 0.1 of tenancy is worth Rs 84 crore of EBITDA, so the thesis is sensitive in both directions. If two operators merge and remove duplicate equipment, tenancy can fall to 1.5, cutting EBITDA to Rs 660 crore. If operators win a 10% rent cut on renewal, 2.0 tenancy delivers only Rs 912 crore. Power cost is the third risk: if diesel and grid tariffs rise faster than the pass-through clauses in the contracts, the Rs 25,000 cost is not fixed after all.

Average tenancyEBITDA, rent cut 10%EBITDA, rent Rs 35,000
1.5534660
1.6610744
1.8761912
2.09121,080
Rs crore a year across 20,000 towers. Tenancy drives the result: from 1.5 to 2.0, EBITDA moves from Rs 660 crore to Rs 1,080 crore at full rent, while a 10% rent cut costs about Rs 168 crore at 2.0 tenancy.

Close the pitch the way a portfolio manager wants it: the thesis, the number, the evidence, and the signal that would make you change your mind. Here the signal is quarterly tenancy additions; if two quarters pass without the ratio moving, the 5G story is not reaching the towers. Say also what is not in the numbers: 5G equipment is heavier and may need tower strengthening capex, and that cost belongs in the free cash flow view even if EBITDA ignores it.

Where candidates lose it

Candidates say tenancy rises 25%, so EBITDA rises 25%. The point of a tower business is that cost does not rise with tenants, so EBITDA moves almost twice as fast, and so does the downside.

The other miss is pitching only the upside. A pitch without a quantified risk and a signal to exit sounds like a sales note, not an investment view.

What the interviewer asks next

  • How would you value the towers on free cash flow rather than EBITDA?
  • Two of the three operators announce a merger. Walk me through what you would do with the position.
  • Why do tower companies sign long contracts with annual escalators, and who bears inflation risk?

Asked at Millennium Management, Technology, Media and Telecom (TMT), New York, 2023 (Wall Street Oasis): na, standard questions around stock pitch and how I think about stocks.

← Case 008A quick commerce dark store handles 1,500 orders a day. What does each order contribute, and how many orders a day does the store need to break even?Case 010 →Do a paper LBO in your head, then answer quickly as the interviewer changes the entry multiple, the interest rate and the exit multiple.

Company names and figures are illustrative.

Fin Maverick Free CoursesExplore Free Courses
Fin Maverick BootcampsExplore Bootcamps
Fin Maverick

Finance education that ends in a job, not a certificate that gathers dust. Built for young India.

LEARN
CalculatorsFrameworksComparisonsInterview RoadmapsShowdown
RESOURCES
All CoursesFree CoursesBootcampsInternships
COMPANY
AboutJob openingPartnership
LEGAL
Privacy PolicyTerms & ConditionsContent LicenseReturn & Refund Policy
© 2026 FIN MAVERICK / BUILT FOR INDIA.DO FINANCE, DO NOT JUST READ ABOUT IT.