Direct answer: For accounts managed on behalf of children ages 13-17, security research is conducted by the parent or custodian, not the child. The checklist covers what the custodian should evaluate before adding any individual equity position to the account. Most children's accounts are better served by broad index funds rather than individual stocks, but custodians who choose individual equities should apply a rigorous research process.
A Security-Research Checklist for Investors Ages 13-17
Business Model and Competitive Position
Before analyzing any numbers, answer in one or two sentences: what does this company do, how does it make money, and why will customers keep buying from it rather than from a competitor? If you cannot answer this clearly and specifically, the investment thesis is not ready.
Competitive position assessment: does the company have a durable advantage? Common moat sources: network effects (value increases as more people use the product), switching costs (customers face significant cost or friction to change providers), cost advantages (lower production or distribution costs than competitors), intangible assets (brands, patents, regulatory licenses), and efficient scale (dominant in a niche too small for competitors to profitably enter). Rate the moat as strong, moderate, narrow, or none, and explain why.
For a child's account at ages 13-17, the custodian performing the research should also ask: is this security appropriate for a child's account at all? Individual stocks carry company-specific risk that broad index funds do not. Unless the custodian has a strong analytical edge and can dedicate ongoing time to monitoring the position, the research sleeve should be small (under 10% of the child's account) and the core should remain in diversified index funds.
Financial Health Checklist
Review three years of financial statements (10-K filings from the SEC EDGAR database). Key metrics:
- Revenue growth: Is revenue growing consistently? Accelerating or decelerating? Understand why.
- Gross margin and operating margin: Is the company becoming more or less profitable as it scales? Expanding margins are a positive signal of competitive strength. Compressing margins warrant explanation.
- Free cash flow: Net income can be manipulated through accounting choices. Free cash flow (operating cash flow minus capital expenditures) is harder to fake. Is the company generating consistent free cash flow? Is free cash flow growing faster or slower than net income?
- Balance sheet: Debt level relative to earnings (debt-to-EBITDA), interest coverage (earnings relative to interest expense), and cash position. High debt is not inherently bad, but it amplifies downturns. A company with 5x debt-to-EBITDA in a cyclical business faces existential risk in a downturn.
- Return on invested capital (ROIC): How efficiently does the company generate returns on the capital it deploys? ROIC above 15% for a sustained period is a sign of genuine competitive advantage. ROIC below 8% (roughly the cost of capital) means the company is destroying value, not creating it.
Valuation and Management Quality
Valuation: establish a range of estimated intrinsic value before looking at the current price. Common methods: discounted cash flow analysis (requires revenue growth and margin assumptions), comparable company multiples (EV/EBITDA, P/E relative to peers and the company's own history), and earnings yield (the inverse of P/E, compared to alternative returns). The goal is not a precise number but a range. If the current price is above the top of your range, the security does not meet the criteria regardless of how much you like the business. If it is below the midpoint of your range, the margin of safety may justify a position.
Management quality assessment: read the last three annual letter to shareholders or CEO statements. Does management acknowledge mistakes or only celebrate wins? Does it have a coherent capital allocation philosophy (buybacks when undervalued, acquisitions when strategically compelling, dividends when appropriate)? Check insider ownership: management with meaningful personal equity stakes has aligned incentives with shareholders. Check the history of shareholder dilution: companies that issue large amounts of new shares at regular intervals are transferring value from existing shareholders to management and capital raises.
Portfolio fit: before adding the position, check what it does to the portfolio's sector exposure, geographic exposure, and correlation to existing holdings. Adding a seventh financial sector stock to a portfolio that already has six is not adding diversification. A position that looks compelling in isolation may reduce portfolio quality by increasing concentration.
Frequently Asked Questions
How many hours should a thorough research process take?
A serious initial research process for a new position takes 4-15 hours depending on the complexity of the business and the availability of secondary sources. Reading the last two or three 10-K filings, the last 8 earnings call transcripts, and two or three thoughtful analyst reports (even if you disagree with the conclusions) covers the primary material. More complex businesses with international operations, regulatory exposure, or multiple business lines require proportionally more time.
Where do I find 10-K filings and earnings call transcripts?
SEC EDGAR (sec.gov/edgar) is the authoritative source for all SEC filings, including 10-K (annual report), 10-Q (quarterly report), 8-K (material events), and proxy statements. The company's own investor relations page also links to filings and hosts earnings call recordings and transcripts. Seeking Alpha and Motley Fool often publish free earnings call transcripts. Morningstar provides financial statement data in a standardized format that makes multi-year comparison easier.
Is this personalized financial advice?
No. Content here is educational and cannot know a reader's complete finances, taxes, legal situation, risk capacity or goals. Use qualified professionals for individualized investment, tax or legal advice when needed.