Reading a Company's Real Position: The HHI, Value Chain, and You

Here's a number that should stop you cold: 10,000. That's the Herfindahl-Hirschman Index (HHI) score for a market with a single firm—a monopoly, by definition (US DOJ Antitrust Division). Most industries won't come near that, but the HHI is the single most underused tool in company profiling. It tells you not just who's big, but how much pricing power anyone actually has. And if you're profiling a company without checking its market's concentration, you're guessing, not analyzing.

I've spent a decade writing industry analyses, and I've learned that the most useful company profiles are the ones that answer a deceptively simple question: Can this company actually make money tomorrow? Not just "are they profitable today," but "do the structural forces in their industry let them keep pricing power, defend against rivals, and fend off suppliers?" To answer that, you need three lenses: the HHI for concentration, Porter's value chain for internal strengths, and PESTLE for the external currents. Here's a field report on how to actually do it.

Step One: Define the Market and Run the HHI

Imagine you're an analyst at a boutique research shop, and a client asks you to profile a mid-sized pharmaceutical company. The first thing you do is define the strategically relevant market (SRM)—not the whole pharma industry, but the specific therapeutic category where this company competes (CFA Institute). That's the market that matters for competitive dynamics.

Once you have the SRM, you compute the HHI: the sum of the squares of each firm's market share (US DOJ Antitrust Division). Suppose the market has five players with shares of 30%, 25%, 20%, 15%, and 10%. The HHI is 900 + 625 + 400 + 225 + 100 = 2,250. Under the 2023 Merger Guidelines, that's "highly concentrated" (HHI > 1,800) (US DOJ Antitrust Division). That alone tells you this is a market where the top firms have real sway—and where any merger would face scrutiny. If the top two merged, the HHI would jump by 2 × 30 × 25 = 1,500 points, far exceeding the 100-point threshold that triggers a presumption of illegality (US DOJ Antitrust Division). So your profile should note: consolidation here is regulated, and the incumbents are protected from new entrants by more than just capital.

Now, that's the macro layer. But HHI is just a number—it doesn't tell you whether the company's internal operations are any good. For that, you go to the value chain.

Step Two: Map the Value Chain to Find Real Advantage

Michael Porter's value chain, introduced in his 1985 book Competitive Advantage, splits a firm's activities into five primary categories—inbound logistics, operations, outbound logistics, marketing and sales, and service—plus four support categories: procurement, technology development, human resource management, and firm infrastructure (IBM Think). When I profile a company, I walk through each of these and ask: Where does this firm create value that competitors can't easily copy?

For our pharma company, the answer might be in technology development—specifically, a proprietary drug delivery platform. That's a differentiator. Porter described two main types of competitive advantage: cost leadership and differentiation (IBM Think). Cost leadership means being the low-cost producer through economies of scale, proprietary technology, or preferred access to suppliers (IBM Think). Differentiation means creating products so unique that customers will pay a premium (IBM Think). Our pharma company probably isn't the cost leader—that's likely a generic manufacturer. But if its delivery platform makes a drug more effective or easier to take, that's differentiation, and it justifies a premium price.

Here's where the HHI and value chain connect: a differentiated product in a highly concentrated market is a recipe for outsized profits. The five forces—rivalry, new entrants, substitutes, supplier power, buyer power—determine how the economic value an industry creates is apportioned (Harvard Business School). In a concentrated market with high entry barriers, that value stays with the incumbents. But if the value chain is weak—say, operations are inefficient or procurement is fragile—then even a concentrated market won't save you.

So, my recommendation: every company profile should include a one-paragraph value chain analysis, even if it's just a bullet list of where the company's cost or differentiation advantage lies. It's the bridge between "market structure" and "firm strategy."

Step Three: Scan the Macro Environment with PESTLE

Now step back. The HHI and value chain are internal and industry-level, but no company operates in a vacuum. PESTLE—Political, Economic, Social, Technological, Legal, Environmental—is the tool for external trends (CFA Institute). For a pharma company, the political factors are obvious: government policies, regulation and deregulation trends, tax policy (Washington State University Libraries). But don't overlook the social factors: demographics, consumer attitudes, and living standards (Washington State University Libraries). An aging population is a tailwind for a chronic disease drug; a shift toward preventive care might be a headwind.

Economic factors matter too: inflation, interest rates, labor costs, and disposable income (Washington State University Libraries). Pharma is somewhat recession-resistant, but if the economy sours, employers may push for cheaper formularies, squeezing prices.

And environmental factors have grown in importance because of raw material scarcity and carbon footprint goals (Washington State University Libraries). If your company's supply chain relies on a scarce input, that's a risk to flag.

The CFA Institute specifically recommends using both Porter's Five Forces and PESTLE together: Five Forces to interpret the competitive environment, PESTLE to understand external trends (CFA Institute). I'd argue you need all three—HHI, value chain, and PESTLE—to write a profile that's more than a glorified brochure.

Step Four: Bring in the Numbers That Actually Matter

Now, let's ground this in some real industry numbers. The global market research industry—the industry that does this kind of analysis—was valued at about $76.37 billion in 2021 and was projected to reach over $108 billion by 2026 (Similarweb / Research and Markets). But ESOMAR's 2024 report estimated the broader global insights industry at over US$140 billion in 2023, expected to surpass US$150 billion by end of 2024 (ESOMAR via Research World). That's a 8.0% growth in 2023 (ESOMAR via Research World (Asia Pacific)).

Why should you care? Because the tools I'm describing are used by this industry, and the industry itself is a case study. The research software sector grew 12.4% in 2023, while the traditional market research sector grew only 4.6% (ESOMAR via Research World). That tells you that the future of insights is software-driven, not survey-driven. And about 47% of researchers globally use AI regularly, with 83% planning to invest in AI in 2025 (Similarweb / Research and Markets). If you're profiling a research firm, that's a key strategic factor.

But here's the catch: the US holds 53% of the global market research market (Similarweb / Research and Markets), while Asia Pacific is the fastest-growing region at 9.5% (ESOMAR via Research World (Asia Pacific)). So a company's growth prospects depend heavily on geography. For our hypothetical pharma company, if it's US-based, it's in the mature, slow-growth market; if it's expanding into Asia, it's riding a tailwind but facing local competitors.

Step Five: Put It All Together in a Profile

So, here's my recommended structure for a company profile that's actually useful:

• Market definition and HHI—define the SRM and compute the HHI; state whether it's moderate or highly concentrated.
• Value chain analysis—identify where the company's cost or differentiation advantage lies.
• PESTLE scan—highlight the two or three macro trends that will most affect the company.
• Strategic implications—tie the HHI and value chain to the five forces and the company's profit potential.

Take our pharma company: HHI of 2,250 means high concentration and pricing power. Value chain strength in technology development means differentiation. PESTLE shows an aging population (social) and regulatory scrutiny (political). The strategic implication: this company can maintain high margins, but it must keep innovating to stay ahead of substitutes.

Now, is this overkill? Some analysts say you can just do a SWOT—Strengths, Weaknesses, Opportunities, Threats (Virginia Commonwealth University). But SWOT is too often a vague list. I've seen profiles that say "strong brand" as a strength and "regulatory risk" as a threat, with no numbers behind them. That's not analysis; it's a wish list. The HHI gives you a number. The value chain gives you a mechanism. PESTLE gives you context. Together, they force you to be specific.

One more thing: don't ignore the Ansoff matrix. In the Duke CMO survey, market penetration—existing products in existing markets—was the most used growth strategy at 54.1% (Duke University CMO Survey). That's a reminder that most companies aren't trying to diversify; they're trying to take share in a market they already know. When you're profiling a company, ask: Are they growing by penetration, or are they trying something riskier? That tells you a lot about their appetite for risk and their likely success.

So, what's the single most important thing to remember? Never profile a company without first computing the HHI of its strategically relevant market. It's the one number that summarizes competitive structure, regulatory risk, and profit potential in a single glance. Everything else—value chain, PESTLE, growth strategy—is detail on top of that foundation.

Sources

• US DOJ Antitrust Division - https://www.justice.gov/atr/herfindahl-hirschman-index
• IBM Think - https://www.ibm.com/think/topics/value-chain-analysis
• CFA Institute - https://www.cfainstitute.org/insights/professional-learning/refresher-readings/2026/industry-and-competitive-analysis
• Washington State University Libraries - https://libguides.libraries.wsu.edu/c.php?g=294263&p=4358409
• Similarweb / Research and Markets - https://www.similarweb.com/blog/research/market-research/market-research-stats/
• ESOMAR via Research World - https://researchworld.com/articles/drivers-of-our-142bn-insights-industry