What Is a 100-Bagger Stock? Mayer's Framework (UK)
The median 100-bagger took 26 years to play out. Almost no retail investor sat through that. Mayer's four traits are easy to spot, and almost impossible to hold to maturity.
The 100-bagger journey: pain on the way
Every winner had multiple 50%+ drawdowns. Almost no retail investor sat through them.
Mayer's four traits of a 100-bagger
| Trait | What to look for | Why it matters |
|---|---|---|
| High ROIC | 20%+ five-year average | Reinvested earnings compound faster |
| Long runway | Small in a growing market | Decades of demand still ahead |
| Founder-led | 5%+ insider ownership | Thinks in decades, not quarters |
| Reasonable entry price | Modest P/E, not the hype zone | Avoids paying away the future return |
Source: Christopher Mayer, 100 Baggers (2015). Based on 365 US winners 1962-2014.
Key takeaways
A 100-bagger is a stock that returns 100 times your original purchase price. Christopher Mayer studied every US 100-bagger from 1962 to 2014 to find what they had in common.
The four traits: high return on invested capital, long growth runway, founder-led management with skin in the game, and a reasonable entry valuation.
The median 100-bagger took 26 years. Most investors who owned one sold long before it got there.
For UK investors holding global index funds, the next batch of 100-baggers is already inside your fund - weighted small, rebalancing up as they grow.