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That leadership positions are fragile is a tenet of the popular business press. Disruption lurks at every corner. Only the paranoid survive. But a careful look at the 2,000 most valuable companies across 15 industries over the past 35 years offers a different picture—at least at the very top: leaders are staying leaders for longer.

What is driving this counterintuitive finding? In some industries, advantages such as scale, network effects, data, or brand and distribution may be becoming more self-reinforcing. In others, incumbents may be getting better at adapting and moving into new value pools. And still in others, leaders may simply be between waves of disruption—with the digital wave maturing and the impact of AI still gathering force.

In this article, we describe the phenomenon of increasing leadership persistence, offer some perspectives on how to distinguish durable stability from more precarious forms of lock-in, and consider what that means for leaders and challengers as they chart their value creation strategies.

Leadership Positions Have Increasingly Locked In

When we studied the shifting roster of valuation leaders from 1990 through 2025, we saw a notable shift toward leadership lock-in. We looked at a metric we call giant churn—the percentage of the combined market capitalization of a sector’s ten most valuable companies in a given year represented by firms that were absent from the top ten five years earlier. It offers a value-weighted view of how much leadership has shifted at the summit.

Across industries, median giant churn fell from 24% from 1990 through 2004 to 13% from 2005 through 2025. Looking deeper, 10 of the 15 industries saw a decline in giant churn, while consumer staples and communications infrastructure saw relatively modest increases. (See Exhibit 1.)

Chart showing increased stability in value leadership in 2005-2025 vs. the prior 15 years. BCG study of valuation trends.

Digital platforms showed the largest increase in leadership longevity, with giant churn falling from nearly 100% to roughly 5% in the later period. But the shift is atypical as it reflects the formation of the category as much as increasing competitive stability. As scaled search and social platforms emerged, leadership consolidated around a small number of very large players and has since become highly persistent.

In industries where leadership tenure has lengthened, there is no single driver. In tech sectors, for example, network effects and ecosystem scale tended to reinforce the position of successful leaders over time. By contrast in retail, where giant churn fell from roughly 10% to 4%, successive waves of disruption displaced weaker formats and shifted advantage toward scaled operators whose purchasing, logistics, data, and ecosystem advantages can reinforce one another. In other words, disruption can itself produce greater stability, as successful disruptors become incumbents and established leaders adapt. (For more background on the analysis, see “About Our Research.”)

About Our Research
Our analysis is based on the top 2,000 companies by market capitalization that were listed on US exchanges, captured at five-year intervals from 1990 through 2025. Data was sourced from S&P Capital IQ. Private companies, as well as public companies that trade exclusively on non-US exchanges, were excluded. For period comparisons, giant churn is reported as the median across the five-year windows within each period.

Industry groupings are based on the Global Industry Classification Standard (GICS) developed by S&P Global with the following adjustments to better reflect competitive boundaries that standard GICS groupings obscure.

The communications services sector was split into three subsectors:
  • Communications infrastructure, which covers all of the telecommunication services subcategory
  • Media and entertainment, which covers all media and entertainment except interactive media and services
  • Digital platforms, which covers the interactive media and services subcategory
A broader retail sector was created by shifting out and combining the following retail-related subcategories from consumer discretionary and consumer staples:
  • Broadline retail
  • Specialty retail (excluding automotive retail)
  • Consumer staples distribution and retail (excluding distribution)
A broader auto and auto retail sector was created by shifting auto retail out of consumer discretionary.

Importantly, it’s not that leadership has become permanent—just more persistent. Over the full 35 years, 62% of companies that reached the top ten fell out at some point during the period. Among those exits, 78% reflected displacement by rivals, while just 16% resulted from M&A. But the companies that make it to the top, on average, stay there longer.

Stability is not necessarily strength though. Leaders need to ask themselves whether a longer time at the top signals a durable advantage—or simply a lull before the next wave of change.

Not All Lock-In Is Equal

Tenure tells us which companies have endured. But is that endurance still being rewarded? For this analysis, we zoomed in on the top five players by value in each sector as of the end of 2025.

To see in which industries long-term winners were still winning—or not—we looked at the share of new value created in the industry from 2015 through 2025 that was captured by its top five players. We then viewed that through a tenure-based lens: the proportion of 2025’s five most valuable companies that had been in the top five longer than the industry’s median leadership tenure from 1990 through 2025. (See Exhibit 2.)

Chart comparing value leaders’ tenure by sector with share of new value captured by leaders. BCG study of valuation trends.

For industries in the upper left quadrant, companies’ leadership may be more exposed. The top players, while still highly valued, are capturing a smaller share of the new value being created, with more of that value accruing to companies outside the top five. In the lower left, leadership is less settled: new value is more broadly distributed and most of the top five are more recent entries.

In the lower right quadrant, newer leaders are capturing a disproportionate share of new value, which may signal a more recent reset in leadership. By contrast, the upper right combines long tenure with continued value capture—arguably the strongest form of lock-in. These leaders may be genuinely advantaged, or they may be extraordinarily well adapted to the current rules of competition. The question is whether the sources of advantage that got them here will still matter when those rules change.

Importantly, competitive advantage is an attribute of a company, not an industry. The auto industry, for example, would seem well positioned in the aggregate, but at the company level, a different picture emerges. Nearly all of the new value created was captured by just one company, Tesla. At year-end 2025, its $1.5 trillion valuation was nineteen times that of the second most valuable company, O’Reilly Automotive. Moreover, among long-tenured top ten companies, only the parts retailers O’Reilly and AutoZone and tier one supplier BorgWarner delivered above-average value creation.

By contrast, leaders in the consumer staples industry show much greater stability. Over the period of our research, just 42% of the companies that made the top ten were ultimately displaced—the lowest across all industries. Brand and distribution strength likely play a big role. And three of the four most valuable companies in 2025—Procter & Gamble, Coca-Cola, and PepsiCo—have been in the top ten since 1990.

While players should keep these high-level perspectives on industry dynamics in mind, it’s also crucial for them to focus on specific opportunities and challenges—and what they imply for the company’s strategy to defend or seize a leadership position.

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Navigating Risk and Assessing Opportunity

Many companies no longer compete within clean industry definitions. Technology, regulation, and shifting customer needs open new adjacencies and redraw those boundaries. So, the starting point is to understand the relevant competitive arena and the broader forces reshaping demand.

To assess whether a company’s leadership is durable, business leaders should ask themselves a few questions that may be more revealing than rank or tenure alone.

The answers to these questions will differ by company. In some cases, stability will reflect an advantage that is still compounding. In others, rank may simply have outlasted relevance or a sector may look stable even as value is being redistributed within it.


Greater leadership stability is not always the calm before the storm. It can reflect durable or even compounding advantage. But it can also reflect a market that has not yet felt the next wave. Longevity alone is an incomplete signal: it tells us who has endured, not whether the conditions supporting that position will continue to hold. The more useful question for leaders is what has to remain true for today’s position to keep creating disproportionate value. Ultimately, leaders need to treat stability as something to test, not something to trust.