TMT Case Interview: Technology, Media & Telecom Frameworks, Metrics, and Worked Examples

A TMT case interview asks you to solve strategy problems in Technology, Media, or Telecommunications -- a sector valued at $7.2 trillion globally in 2026 and representing 53% of total market capitalization (Source: Business Research Insights 2026). These cases test whether you can apply standard consulting frameworks while accounting for sector-specific dynamics: network effects in tech, content economics in media, and infrastructure capex in telecom. Based on 400+ TMT practice sessions on our platform, candidates who learn 6 key metrics (ARPU, churn, CAC, LTV, penetration rate, content cost per subscriber) outperform those who rely on generic frameworks by roughly 35% on interviewer scoring.

The 5 TMT Case Types You Will Face

TMT is not one case type -- it is five distinct problem types that share a sector. Each demands different frameworks and metrics. The most common mistake we see is candidates treating a telecom pricing case like a generic profitability case and missing the ARPU-churn tradeoff entirely.

Each type maps to a standard case interview framework but adds a TMT-specific lens. A telco pricing case is a profitability case with ARPU decomposition. A 5G rollout case is an investment case with infrastructure economics. A media M&A case follows the M&A framework but values content libraries and subscriber bases instead of factories and inventory.

TMT Metrics You Must Know

Interviewers will not define these for you. Memorize the benchmarks.

A 5% ARPU increase on 100M subscribers = $3B annual revenue lift. Every 0.1% churn reduction on a 100M subscriber base saves ~1.2M subscribers annually. These are the magnitudes interviewers expect you to estimate quickly.

Framework: TMT Case Analysis

Framework

TMT Case Interview Framework

1. 01

   Step 1: Identify the TMT Sub-Sector

   Tech (software, hardware, platforms), Media (streaming, advertising, content), or Telecom (wireless, broadband, infrastructure)? Each has different cost structures and competitive dynamics.

2. 02

   Step 2: Map the Revenue Model

   Subscription (ARPU × subscribers), advertising (impressions × CPM × fill rate), transactional, or hybrid? This determines which metrics drive the case.

3. 03

   Step 3: Quantify Unit Economics

   CAC, LTV, content cost/sub, capex/subscriber. TMT cases live and die on unit economics because marginal costs are often near zero.

4. 04

   Step 4: Assess Competitive Dynamics

   Network effects, switching costs, bundling power, content exclusivity. TMT moats are structural, not just brand-based.

5. 05

   Step 5: Model the Decision

   Build the financial case: NPV for investments, synergy value for M&A, revenue impact for pricing. Always stress-test with a churn sensitivity.

Worked Example 1: Telco Pricing Optimization

Prompt: A US wireless carrier with 85 million postpaid subscribers and $47 average monthly ARPU is considering a $5/month price increase across all plans. Monthly churn is currently 0.9%. The CEO wants to know if this will increase annual revenue.

Step 1 -- Baseline revenue: 85M subscribers × $47 ARPU × 12 months = $47.94B annual revenue

Step 2 -- Revenue uplift from price increase (before churn impact): 85M × $5 × 12 = $5.10B gross uplift

Step 3 -- Estimate churn acceleration: Historical data shows a $5 increase raises monthly churn by 0.3-0.5pp. Midpoint: 0.9% → 1.3%.

• Old annual churn: 0.9% × 12 ≈ 10.2% → 8.67M churned
• New annual churn: 1.3% × 12 ≈ 14.6% → 12.41M churned
• Incremental churn: 3.74M additional lost subscribers

Step 4 -- Net revenue impact: Lost revenue from incremental churn: 3.74M × $52 (new ARPU) × 6 months average = $1.17B lost. Net Year 1: $5.10B - $1.17B = +$3.93B before re-acquisition costs ($350 CAC × 3.74M = $1.31B).

Step 5 -- Recommendation: Net positive in Year 1, but 3.74M churned subscribers erode the base long-term. Better approach: tiered increase -- $5 on premium plans, $3 mid-tier, $0 entry. Captures 70-80% of uplift while concentrating churn in low-elasticity segments. A classic case math problem where sensitivity analysis matters more than the point estimate.

Worked Example 2: Streaming Platform M&A

Prompt: A global media conglomerate (120M streaming subscribers, $14.99 average monthly price) is evaluating acquiring a mid-size streaming platform with 35M subscribers at $9.99/month. The target has an enterprise value of $28B. Should they proceed?

Step 1 -- Valuation sanity check: $28B ÷ 35M subscribers = $800 per subscriber. For context, Netflix trades at roughly $900-1,100/sub, Disney+ at ~$500-700/sub. The $800/sub valuation is within range for a platform with a differentiated content library.

Step 2 -- Subscriber overlap: 40% of the target's subs also subscribe to the acquirer. Net new: 35M × 60% = 21M. Adjusted price per net new sub: $28B ÷ 21M = $1,333/sub -- significantly more expensive.

Step 3 -- Synergy analysis: Content cost consolidation ($800M -- eliminate 15% duplicate licensing), tech platform merger ($350M), ad cross-sell ($200M), subscriber price migration ($500M). Total: $1.85B/year.

Step 4 -- Return calculation: $1.85B ÷ $28B = 6.6% unlevered return. At 10% cost of capital, the deal fails on synergies alone. Proceed only if the content library has defensive strategic value. Negotiate to $22-24B for 8%+ return. Standard M&A framework applies: valuation, synergies, strategic rationale, integration risk.

5G, Digital Ads, and Media M&A: Sub-Sector Spotlights

5G investment cases center on one tension: $120B+ annual industrywide capex versus uncertain revenue uplift (Source: PwC 2026). The 5G services market hit $209B in 2025 and is projected at $341B in 2026 (Source: Fortune Business Insights 2026). Consumer 5G delivers faster speeds but limited willingness to pay a premium. Enterprise 5G (private networks, IoT) offers $500-2,000/month per site -- 50-100x consumer ARPU. When you get a 5G case, immediately segment consumer vs. enterprise. The economics are fundamentally different.

Digital advertising cases require this revenue formula: Ad Revenue = DAU × Sessions/User × Ads/Session × CPM ÷ 1,000. Digital ad spend surpassed $850B globally in 2025, with Google and Meta capturing over 50% of worldwide ad dollars and programmatic buying handling 92% of display ads (Source: eMarketer 2026). In a digital transformation case with an ad component, the central tension is ad load vs. user experience -- push too hard and engagement drops, reducing the inventory you are trying to monetize.

Media M&A cases are surging. The Paramount-Skydance $8B merger closed, followed by the Warner Bros. Discovery bidding war reaching $108B (Source: PwC/Deadline 2026). Netflix, Amazon, and Disney control over 60% of the streaming market. For M&A cases in media, use EV/Subscriber (not EV/EBITDA) as the primary valuation multiple. Subscriber overlap is the biggest synergy killer -- if 50%+ overlap, net subscriber additions barely justify the premium.

Quiz: Test Your TMT Knowledge

Test yourself

1 / 3

Question 1 of 3

A wireless carrier has 60M subscribers at $50 ARPU with 1.0% monthly churn. It launches a $5 price increase that raises churn to 1.4%. What is the approximate net revenue impact in Year 1?

• A+$3.6B (price increase fully captured)
• B+$2.4B (price increase partially offset by churn)
• C-$0.2B (churn losses exceed price increase)
• D+$1.0B (churn eliminates most of the gain)

How to Prepare for TMT Cases

1. Learn the 6 core metrics and practice calculating them under pressure with case math drills.
2. Read one earnings call from each sub-sector: AT&T (telecom), Netflix (streaming), Google (digital ads). Note which KPIs management emphasizes.
3. Practice TMT data interpretation -- subscriber curves, ARPU trends, churn waterfalls. See the data interpretation guide.
4. Know the 2026 landscape: 5G monetization struggles, streaming consolidation (Warner-Paramount $170B+), AI-driven programmatic at 92% of display.
5. Pair TMT knowledge with core frameworks. A market entry framework still works for "should a telco enter streaming?" -- add TMT metrics to each branch.

Sources

1. Business Research Insights: TMT Market Size 2026 ($7.2T valuation) — businessresearchinsights.com/market-reports/tech-media-and-telecom-tmt-market-121501 (checked April 8, 2026)
2. Fortune Business Insights: 5G Services Market ($341B in 2026) — fortunebusinessinsights.com/5g-services-market-104910 (checked April 8, 2026)
3. PwC: The State of 5G and Capex Trends — pwc.com/gx/en/industries/tmt/telecommunications/the-state-of-5G-capturing-more-value.html (checked April 8, 2026)
4. eMarketer: Worldwide Ad Spending Forecast 2026 — emarketer.com/content/worldwide-ad-spending-forecast-2026 (checked April 8, 2026)
5. Deloitte: TMT Predictions 2026 — deloitte.com/us/en/insights/industry/technology/technology-media-and-telecom-predictions.html (checked April 8, 2026)
6. PwC: Media & Telecom M&A 2026 Outlook — pwc.com/us/en/industries/tmt/library/telecom-media-deals-outlook.html (checked April 8, 2026)
7. McKinsey: TMT Practice Overview — mckinsey.com/industries/technology-media-and-telecommunications/how-we-help-clients (checked April 8, 2026)
8. BCG: B2C Pricing in TMT — bcg.com/capabilities/pricing-revenue-management/b2c-pricing (checked April 8, 2026)