The average CEO of an S&P 500 company has been working for 24 years before taking the corner office. That number comes from a decade-long study of 17,000 C-suite executives, and it should reframe almost every conversation about career acceleration.

Not because 24 years is discouraging — but because it tells you something about what the journey is actually made of. It’s not a sprint with the right credentials. It’s a series of deliberate moves, relationships, and role choices that compound over a long time horizon.

Spencer Stuart’s analysis of S&P 500 leadership teams is one of the most rigorous examinations of how executives actually reach the top. Most top functional leaders rise internally, CEO transitions often reshape the senior team, and executives who succeed at the highest levels distinguish themselves through enterprise thinking, collaboration, adaptability, and people leadership — not just technical skill. If you’re trying to get there, those four capabilities are where the work is.

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The Four Paths That Actually Produce C-Suite Leaders

Spencer Stuart found that over the past two decades, 85 percent of S&P 500 CEOs come from four roles: CFO, COO, divisional CEO, and what the firm refers to as a leapfrog — an executive who jumps multiple levels in a single move, typically by taking on a high-visibility assignment with significant organizational risk.

This matters because most career advice focuses on the wrong inputs. Prestigious credentials, the right MBA program, early-career recognition — these are table stakes, not differentiators. The differentiators are role choices: specifically, whether you’ve run something with a P&L, whether you’ve led through failure, and whether you’ve built genuine influence across functions rather than within one.

The CFO path is more common than most assume. About 9% of CEOs are promoted from the CFO seat — a number that understates the CFO’s broader value as a transition to the top. Financial fluency is no longer just a finance skill. Boards want CEOs who can speak the language of capital allocation and investor relations without a translator. CFOs who’ve built operational credibility alongside financial expertise are uniquely positioned.

The COO path is the most traditional and still the most reliable. COOs handle the operational complexity that lets CEOs focus on strategy and external relationships. Those who succeed in the COO role typically share a quality that’s hard to develop quickly: comfort with responsibility without authority. They make things work that weren’t designed to work well together.

The divisional CEO path is increasingly the one boards prefer. Running a P&L at scale — with real accountability for growth, people, and performance — is the closest rehearsal for the full role that most organizations can offer. Executives who’ve done this, especially in competitive or turnaround contexts, arrive at the CEO discussion with a different kind of credibility.

The leapfrog path is the most uncommon and the most misunderstood. It doesn’t mean jumping rungs through politics or visibility. It means accepting assignments that most peers would decline — the struggling division, the international expansion into an unfamiliar market, the post-merger integration that nobody wants to own. These are the roles where careers are made or broken, which is exactly why they accelerate trajectory for those who succeed.

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What’s Actually Changing at the Top

In the S&P 500, external hires nearly doubled in 2025, pushing internal promotions below 70% for the first time in eight years. This is worth pausing on. For decades, the conventional wisdom was clear: grow internally, build institutional relationships, and earn the top job through tenure. That model isn’t dead, but it’s no longer dominant.

Why is this happening? Several forces are converging. Boards are under pressure to bring in transformational capability — particularly in AI strategy, geopolitical risk navigation, and business model reinvention — that internal development pipelines haven’t yet produced. When a company needs to change direction and the current team represents the direction it’s changing from, external hiring becomes the logical solution.

This creates a real tension for aspiring executives: the safest path to the C-suite is still internal advancement, but the risk of institutional familiarity — being permanently associated with how things are done rather than how they could be done — is higher than it’s ever been.

The executives who thread this needle successfully share a pattern: they maintain institutional relationships while consistently being identified with transformation. They don’t become the face of the current model. They become the person the current model relies on to see past itself.

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The Skills Boards Are Actually Buying

The typical C-suite officer is in their late 40s to mid-50s, though tech companies skew younger. Behind that data point is a more useful observation: the window between “ready for the role” and “too institutionalized to take it” is shorter than it used to be.

Boards aren’t looking for the executive who has all the answers. They’re looking for the executive who can build the room where the right questions get asked. The specific capabilities that correlate with C-suite success — based on Spencer Stuart’s research and echoed across executive search practice — cluster around four areas:

Enterprise thinking. The ability to hold the whole organization in mind when making functional decisions. This is rarer than it sounds. Most executives are genuinely good at their function and intermittently good at seeing how that function affects the enterprise. The C-suite requires the ratio to invert.

Stakeholder management across power centers. Not consensus-building — which often means avoiding hard decisions — but genuine influence with people who have competing interests and different definitions of success. This is primarily a relational skill, which is why it develops through exposure, not coursework.

Demonstrated performance in ambiguous conditions. Every C-suite candidate can point to performance in favorable conditions. The ones who get selected have track records in difficult ones: market downturns, failed launches, underperforming businesses, post-merger chaos. These are the contexts that reveal whether performance is a function of skill or circumstance.

The ability to develop others. This is the most consistently underweighted capability in self-assessment and the most consistently overweighted in board evaluation. Boards have seen too many brilliant individual performers who couldn’t build leadership teams around themselves. An executive who visibly develops other leaders — who can point to multiple people who grew significantly under their leadership — signals something boards find genuinely rare: the capacity to scale.

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The Sponsorship Variable

One finding from Spencer Stuart’s research deserves more attention than it typically receives. Employees with sponsors get promoted at nearly twice the rate of those without.

This is distinct from mentorship. A mentor gives advice. A sponsor spends political capital on your behalf — advocating for your promotion in rooms you’re not in, creating visibility for your work with people who matter, and managing the perception gaps that inevitably develop between how you see yourself and how you’re seen from above.

The sponsorship gap is particularly pronounced for executives from underrepresented groups. Access to sponsors is asymmetric, and most executives who have benefited from strong sponsorship significantly underestimate how much it shaped their trajectory.

The implication for aspiring C-suite leaders: sponsorship isn’t something that happens to you. It’s something you build through consistent, visible performance in roles that matter to the people you need to sponsor you. You cannot make someone your sponsor. You can make yourself the kind of executive that someone wants to sponsor.

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What This Means for the Long Game

The research is consistent on one thing that most career planning gets wrong: the C-suite is earned in the middle of the career, not the end. The decisions made in the 10 to 15 years before the corner office — which roles to take, which companies to stay at or leave, which relationships to invest in, which problems to volunteer for — are the ones that actually determine who gets there.

84% of newly appointed S&P 500 CEOs were first-time CEOs, most coming up through COO or divisional CEO roles. The implication is that most executives who make it to the top didn’t plan a specific title. They planned to be the kind of executive who could fill it.

That’s a meaningful reframe. The question isn’t “how do I become a C-suite executive?” The question is “what kind of leader do I need to become?” — and then, systematically, to close the distance between the current answer and the required one.

The research won’t tell you which specific roles to take or which companies to join. Those decisions depend on context that’s irreducibly specific to each person. But it does tell you the profile that emerges from good decisions: someone who has run things with genuine accountability, built leadership in others, navigated complexity in ambiguous conditions, and built relationships across power centers that survive organizational change.

That profile doesn’t emerge from career planning in the conventional sense. It emerges from taking hard assignments seriously and learning from them more rigorously than most people do.