Mavros
Asset Management · Research

The Stay-Private Era

The most valuable companies in the world now stay private for a decade or more, growing large enough to rival the public giants. Why the exit narrowed, what a private valuation is really worth, and how the founders and families whose wealth sits locked inside these companies can turn it into cash, protect it, and hand it down.

MavrosJuly 12, 20269 min read

For most of the last century, the path ran one way. You built a company and grew it, and eventually you took it public. The IPO was the moment paper wealth turned into the spendable kind, and it usually showed up within a few years of the business finding its feet. That path has come apart. The most valuable companies in the world are private now. Several are worth more than all but a handful of names on the public exchanges, and plenty of them have no plan to list any time soon.

If your wealth is tied up inside one of these companies, none of this is abstract. It sets the terms of your financial life. How long does your equity stay illiquid? When, if ever, can you sell without betting against your own upside? What is that paper number actually worth today, and what would it take to turn even part of it into cash your family can spend? And if the IPO you have quietly been counting on never comes, what happens to the plans you built around it?

Why The Public Market Stopped Being The Finish Line

Start with why this happened, because the cause shapes every decision that comes after. Three forces pushed the finish line back.

The first is capital. A late-stage private round can now raise what once took a public offering. Crossover funds, the ones that buy in while a company is private and keep holding after it lists, plus sovereign wealth and dedicated growth vehicles, will write nine- and ten-figure checks into a company that never files an S-1. When private money runs this deep, the public market loses its old job as the only pool big enough to fund the next stage.

The second is the law. For decades a company was effectively forced public once it passed 500 shareholders of record, meaning names actually sitting on the register, the reporting trigger under Section 12(g) of the Securities Exchange Act. That rule is part of what pushed Google public in 2004 and Facebook in 2012. The 2012 JOBS Act raised the threshold to 2,000 holders of record and stopped counting employees who got their shares as pay. The trip wire that used to end the private phase got moved far down the road.

The third is the cost of being public. A listed company answers to quarterly earnings and constant disclosure, plus a share price that jumps on every headline. Stay private and a founder can run the business on a longer clock and keep control of the cap table, the ledger of who owns what. None of that is free. But for a company that can reach private capital, the trade has tilted.

The result shows up in the data. IPO volume has fallen decade over decade since the 1990s, and the companies that do list are roughly twice as old as they were forty years ago. The public offering is no longer the natural end of the private phase. It is one option among several, and often not the first one a company reaches for.

Exhibit 1
Fewer companies go public, and they wait far longer to do it
025050075010002771980s9351990s3822000s2872010s1462020s5.6 yrs6.5 yrs6.3 yrs10.2 yrs11.2 yrs
Number of U.S. IPOsMedian age at IPO (years)
Source: Jay R. Ritter, University of Florida (2026). Bars show U.S. IPO activity by decade; the line shows the median age of companies at IPO.
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Informational and educational only; not investment, legal, or tax advice. Valuations are indicative, from public reporting, as of the date shown.