Note · Opinion, not rated
Growth is not a virtue.
Growth is not something a company has. It is something a company buys, and the only question that matters is the price. Two businesses can grow at an identical rate and be worth five times different, and one of them would be worth more if it stopped.
The sentence that should not survive arithmetic
"Revenue grew 20%." It is the first line of every earnings release and the first thing quoted back in every write-up, and on its own it carries no information about whether anything good happened.
Growth is funded. Somebody had to put capital into the business to produce it: inventory, stores, receivables, plant, engineers capitalized into a product that does not exist yet. That capital came from the company's own profit or from outside investors, and either way it had a price. Whether the growth was worth having depends entirely on the return the new capital earns against the cost of raising it. Below that line, growth is a machine for converting shareholder money into a bigger version of a business you should not have wanted more of.
Growth has a price tag, and it can be computed
The relationship is not soft. To grow at a rate g while earning a return on new capital of ROIC, a company must reinvest exactly:
reinvestment rate = g / ROIC
Grow at 6% earning 30% on new capital and you spend 20% of your profit to do it. Grow at 6% earning 7% and you spend 86% of your profit to do it. Same growth. More than four times the bill.
Everything else follows from that one ratio. What is left after the bill is free cash flow, and free cash flow is what an owner actually gets.
Two companies, identical on the headline
Worked example
Both firms earn $100M of after-tax operating profit, both grow 6%, both cost 9% of capital. The only difference is what they earn on the money that funds the growth
- Company A reinvests
- 20% of profit
- Company A frees up
- $84.80M
- Company A is worth
- $2,827M
- Company B reinvests
- 86% of profit
- Company B frees up
- $15.14M
- Company B is worth
- $505M
Identical profit, identical growth rate, identical cost of capital. Company A is worth 5.6 times Company B, because A buys its growth at a discount and B pays retail. A screen sorted on revenue growth ranks them the same.
Both would be described in the press the same way. Both would print the same growth number on the same slide. One of them is a compounder and the other is a subscription service that bills its owners for the privilege of getting bigger.
The line where growth stops paying
There is an exact threshold, and it is not a matter of taste. When the return on new capital equals the cost of capital, growth is worth precisely nothing. It does not hurt. It does not help. The value is the same at any growth rate you pick, which is why the 9% row below lands on $1,178M whatever you assume about expansion.
Below the line, more growth means less value. Above it, more growth means more.
| Return on new capital | Reinvestment rate | Free cash flow | Value |
|---|---|---|---|
| 5% | 120% | −$21.20M | not a going concern |
| 7% | 86% | $15.14M | $505M |
| 9% | 67% | $35.33M | $1,178M |
| 12% | 50% | $53.00M | $1,767M |
| 15% | 40% | $63.60M | $2,120M |
| 20% | 30% | $74.20M | $2,473M |
| 30% | 20% | $84.80M | $2,827M |
The top row deserves a word. When the growth rate exceeds the return on new capital, the reinvestment rate passes 100% and the company has to raise outside money to fund its own expansion. The formula returns a negative number, which is not a prediction. It is the arithmetic saying this cannot continue, and the market's version of saying it is a dilutive equity raise or a conversation about covenants.
Where it gets uncomfortable
Run the same two companies at four different growth rates and the columns point in opposite directions.
| Growth rate | Company A, 30% on capital | Company B, 7% on capital |
|---|---|---|
| 0% | $1,111M | $1,111M |
| 2% | $1,360M | $1,041M |
| 4% | $1,803M | $891M |
| 6% | $2,827M | $505M |
At zero growth the two companies are identical, because a business that reinvests nothing and pays out everything is worth the same regardless of what it could have earned on capital it is not deploying. From there they fork. Every point of growth adds value at A and destroys it at B.
Company B is worth $606M more standing still than growing at 6%. Its best available move, on these numbers, is to stop.
Return the capital, harvest the position, and be a smaller and far more valuable company. That option is available and almost never taken, because no management team is promoted for shrinking and no earnings call rewards it. The incentive to grow is real. It is just not always the shareholders' incentive, and the gap between those two things is where a great deal of capital goes to die quietly over a decade.
What this changes about reading a company
It moves the question. Not "how fast is it growing," which is the answer everybody already has, but "what is it earning on the money it puts to work, and is that above or below what the money costs?" That is a harder number to find and a much less quotable one, which is exactly why it stays mispriced.
It also reframes the two things investors argue about most. A company with a low return on capital announcing an ambitious expansion is announcing an intention to burn money, and the stock deserves to fall on that news. A company with a high return on capital that cannot find anywhere to reinvest should hand the money back, and a buyback at the right price is not financial engineering. It is the correct answer to running out of good ideas.
We use this on every report. When a reverse discounted cash flow says the market is pricing in years of fast growth, the second question is always what return that growth has to earn to be worth anything, and how often the company has cleared that bar before. A growth assumption without a return assumption attached is not an assumption. It is a wish with a spreadsheet around it.
Growth is not the achievement. Growth bought below the cost of capital is a liability that reports as a success.