What separates a good growth screen from a story-stock generator?
A good growth screen requires growth to be sustained, profitable, and reasonably priced. Sustained means multi-year revenue and earnings expansion, not one hot quarter. Profitable means margins expanding or at least stable, with returns on capital that justify the reinvestment. Reasonably priced means a PEG check or equivalent, so you are not paying 50 times earnings for 15% growth. A screen with only a revenue-growth filter is a story-stock generator: it finds exciting narratives, many of which never produce a dollar of profit. The filters below add the three missing tests.
The core growth filters
Top-line expansion sustained over three years. Single-year spikes are often cyclical or acquisition-driven; three-year averaging reveals the real trend.
Growth reaching shareholders. Revenue growth without EPS growth means the company is buying sales with margins or diluting holders to fund expansion.
The dilution check. If total revenue grows 20% but shares outstanding grew 25%, each shareholder owns a shrinking slice of a growing pie. Per-share growth is the honest number.
A forward-looking cross-check, not a truth source. Estimates are often optimistic, so use them to confirm the trend direction, not to justify the valuation.
These four filters define the candidate set: companies genuinely expanding on a per-share basis. Everything after this is about quality of growth and price of growth, which is where growth screens succeed or fail.
Acceleration: the filter most screens miss
The market prices growth stocks on expectations, which means the direction of the growth rate matters as much as its level. A company growing 30% whose growth is decelerating toward 15% will often underperform a company growing 20% with growth accelerating toward 30%, because the first disappoints expectations while the second beats them.
- Compare recent quarters to the multi-year trend. Is the last two quarters' revenue growth above or below the 3-year average? Above suggests acceleration; below suggests deceleration.
- Watch sequential margin trends. Accelerating growth with expanding margins is the best combination in growth screening; accelerating growth with collapsing margins suggests the company is buying revenue.
- Check guidance revisions. Companies raising forward guidance are confirming acceleration; companies guiding down while reporting good trailing numbers are warning you. The guidance lesson covers how to read these statements.
Acceleration is hard to screen mechanically, which is why it is an edge: most screeners filter on trailing levels, so the investor who checks the trend direction manually sees what the screen missed. Build it into your research routine for every growth-screen survivor.
Profitable growth: margins, cash flow, and returns on capital
Growth without profits is a funding round, not a business. These filters separate companies whose growth creates value from companies whose growth consumes it.
Expanding or stable gross and operating margins
Growing revenue with shrinking margins means the company discounts to grow, a treadmill that ends when the funding does. Require gross margins stable or rising over three years. Operating leverage, margins expanding as revenue grows, is the hallmark of a scalable business and the single best quality signal in growth screening.
Positive operating cash flow, trending toward free cash flow
Young growers may burn cash while scaling, which is acceptable only if the burn is shrinking relative to revenue and the path to cash generation is visible. Require operating cash flow positive and improving; be deeply skeptical of companies where revenue grows but cash burn grows faster.
Return on invested capital above the cost of capital
The ultimate test: does each dollar reinvested earn more than it costs? Growth funded below the cost of capital destroys value no matter how fast revenue rises. ROIC above roughly 12 to 15% with growth above 15% is the combination that compounds shareholder wealth; growth with single-digit ROIC is empire-building. The ROIC lesson shows how to build the number.
The valuation check: growth at a reasonable price
Growth investors' most expensive mistake is treating valuation as someone else's problem. The math is unforgiving: paying 60 times earnings for 20% growth requires near-perfect execution for years just to earn a market return, and any disappointment reprices the stock violently.
P/E divided by the growth rate. A PEG of 1.0 means you pay one multiple point per growth point; below 1.5 is a reasonable-price starting filter. Use forward growth estimates with skepticism, since optimistic estimates flatter the PEG.
For unprofitable growers, P/S is the only multiple available. Compare against mature peers' P/S, not against other story stocks; "cheap versus Tesla" is not analysis.
Flip the P/E: a 2% earnings yield (P/E of 50) must be justified by growth far above 2% sustained for many years. Write the implied growth duration down; if it requires a decade of perfection, the price is a speculation.
The GARP compromise, growth at a reasonable price, is where most successful growth screening lives: demanding growers that have not yet been priced for perfection. Pure growth-at-any-price screening works until it suddenly does not, usually all at once, and the drawdowns erase years of gains.
Story stocks: the five warning signs
Years of 30%+ revenue growth with operating cash flow flat or negative. The business model may never work at scale; growth is funded by investors, not customers.
Total revenue rises while organic revenue stalls and goodwill balloons. Check revenue per share and organic growth disclosures; serial acquirers often hide deterioration behind deal announcements.
"A $500 billion total addressable market" justifying any valuation. TAM is not demand; a giant market with 1% share and no path to 10% is a story, not a thesis.
Management talks about the bright future while filing Form 4 sales. Check insider activity: executives buying alongside the story is conviction; executives selling into it is information.
The multiple implies a decade of flawless 25% growth. Any real business disappoints occasionally; perfection-priced stocks convert normal hiccups into 40% drawdowns.
The growth-screen checklist
- Sustained growth confirmed: 3-year revenue and EPS growth above 15%, on a per-share basis.
- Trend direction checked: recent quarters at or above the multi-year growth rate; guidance not deteriorating.
- Profitability verified: margins stable or expanding, operating cash flow positive and improving, ROIC above the cost of capital.
- Valuation disciplined: PEG below 1.5 or equivalent; implied growth duration written down and plausible.
- Story-stock flags cleared: no acquisition-driven growth mirage, no perpetual cash burn, no TAM hand-waving, insiders not selling into the narrative.
- Institutional confirmation: check 13F data for professional accumulation; smart money buying durable growers is corroboration, and its absence is a question.
- Thesis written: what the company does, why growth continues, what would prove you wrong. See the thesis review lesson.
Questions about growth stock screening
What is a good PEG ratio for growth stocks?
Below roughly 1.5 is a reasonable starting filter: you pay less than 1.5 multiple points per point of growth. Below 1.0 is stricter and rarer. Remember that PEG depends on growth estimates, which skew optimistic, so treat a PEG built on rosy forecasts with skepticism.
Should growth stocks pay dividends?
Usually not, and that is fine: a true growth company reinvests cash at high returns rather than distributing it. Be suspicious instead of the reverse, a self-described growth stock paying a large dividend, which often signals the growth story has stalled.
How do you value a growth stock with no earnings?
Carefully, and usually with price-to-sales versus mature peers, plus a written model of when profits arrive and at what margins. If you cannot sketch the path to profitability with plausible numbers, you do not have a valuation, you have a hope.
Is revenue growth or earnings growth more important?
Both, in sequence: revenue growth proves customers want the product, earnings growth proves the business model works. Revenue without earnings is potential; earnings without revenue is efficiency with an expiration date. The best growers show both, with margins expanding.
When should you sell a growth stock?
When the thesis breaks: growth decelerates structurally, margins compress persistently, the valuation demands perfection you no longer believe in, or insiders sell aggressively. Slowing growth is normal as companies mature; distinguish maturation (acceptable, reprice expectations) from deterioration (exit).
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