Average CMO tenure has declined 35% across industry cohorts since 2010, according to a new study from Findem, an AI-powered recruiting platform, and CMO Huddles, a peer community for B2B marketers. Chief marketers who entered the role in 2010 had a median tenure of four years. Those who started in 2022 lasted a median of 2.6 years.

The study examined 13,000 current CMOs at U.S. businesses with 100 or more employees, drawing on time-ordered employment and company data from Findem rather than self-reported surveys. Median tenure for marketing chiefs today stands at 36 months — roughly 30% shorter than that of CEOs. The researchers cut off their stable historical median analysis with CMOs who entered the job in 2022, since many executives hired after that point remain in their roles.

"The CMO role has become the pressure cooker of the C-suite," CMO Huddles CEO Drew Neisser said in a statement. "Companies want marketing leaders to fix growth, reposition the business, build demand, sharpen the brand, align sales, and prove impact fast. But the data is screaming that too many CMOs are being handed transformation-sized mandates on trial-period timelines."

Company type shapes longevity. CMOs at larger, publicly traded brands last about four years on average, compared with 3.1 years at private equity-backed businesses and 2.6 years at venture capital-backed companies. The researchers found little difference in tenure between B2B and B2C CMOs generally, though business vertical, company scale and operating maturity do produce disparities.

The tenure distribution among current marketing chiefs is stark. One-third of marketers have held their position for over five years, while nearly the same share, 30%, have been in the role for under 18 months.

Newer hires bring different skill profiles. Sixty percent of CMOs brought on this year are new to the role, and these executives tend to carry more skills in demand generation, strategy and product marketing. Over a quarter of CMOs hired in 2026 — 26% — have AI-related skills, compared with 9% of CMOs who have held the role for over four years. The gap reflects how generative AI, which began shaking up marketing in late 2022, has reshaped hiring criteria even as sitting CMOs have struggled to meet the technology's upskilling demands.

Internal promotion remains a modest pipeline. Nineteen percent of recent CMO appointments were promoted internally, roughly in line with patterns dating back to 2020. On representation, 55% of CMOs are women — a smaller portion than the overall marketing workforce, where 62% of employees are women. Findem and CMO Huddles cautioned that 2026 data covers only a partial year and should be read as directional trends rather than definitive outcomes.

The findings align with other recent research on marketer longevity. Spencer Stuart most recently pegged average CMO tenure at S&P 500 companies at 4.1 years, among the lowest in the C-suite, with the figure dropping to 3.5 years for marketing chiefs at consumer brands.

While Findem and CMO Huddles position their methodology as more comprehensive — separating fully matured tenures from data on current leaders — the top-line conclusion matches prior assessments: CMO stability is getting shakier as companies ask marketers to drive major transformation and growth on compressed timelines.