How to Research a Stock Before You Buy It

· Strategy

So you want to buy individual stocks instead of just ETFs? Cool — but please don't just buy a stock because your friend said so or because it was trending on TikTok. Here's how to actually research a company before investing your hard-earned money.

Step 1: Understand the Business

Before you look at any numbers, answer this: What does this company do, and why will it keep making money?

Warren Buffett calls this your \"circle of competence.\" Invest in what you understand.

As a teen, you might understand:
- Apple (you use an iPhone)
- Nike (you wear their shoes)
- Roblox (you or your friends play it)
- Spotify (you stream music daily)

You probably DON'T understand:
- Some biotech company developing drugs you can't pronounce
- A mining company in a country you've never heard of

Stick to companies whose products you know. You'll naturally understand their competitive advantages.

Step 2: Check the Numbers

You don't need to be a math genius. Just look at these key metrics (find them on Yahoo Finance or Google):

Revenue: Is the company making MORE money each year? Growing revenue = growing business.

Earnings Per Share (EPS): Profit divided by total shares. Is it positive and growing?

P/E Ratio (Price-to-Earnings): Stock price ÷ annual earnings per share. S&P 500 average is ~20-25. Under 15 = might be cheap. Over 40 = might be expensive (or growing fast).

Debt: Companies with too much debt are risky. Check the debt-to-equity ratio. Under 1 is generally healthy.

Don't stress about memorizing formulas. The key question: Is this company growing, profitable, and not drowning in debt?

Step 3: Check the Competition

No company exists in a vacuum. Ask:
- Who are their competitors?
- What's their moat (competitive advantage)?
- Could a competitor steal their market share?

Examples of moats:
- Brand: People pay more for Nike than generic shoes. That's brand power.
- Network effect: Everyone's on Instagram because everyone's on Instagram.
- Switching costs: Once you're in the Apple ecosystem, switching to Android is a pain.
- Cost advantage: Walmart can sell cheaper because of their massive supply chain.

Companies with strong moats tend to maintain profitability for decades. Those are the ones you want.

Step 4: Consider the Price

A great company at a terrible price is a bad investment. A good company at a fair price is a great investment.

Look at:
- Historical P/E: Is the current P/E higher or lower than the 5-year average?
- Analyst targets: What do analysts think the stock is worth? (Take with a grain of salt.)
- Recent chart: Has it been on a massive run-up? You might be buying at the top.

Honestly, for most teens, individual stock research is fun but not necessary. A broad index fund gives you better risk-adjusted returns with zero research required. But if you want to pick some stocks for your \"explore\" allocation, this process keeps you grounded.

Try analyzing stocks risk-free on our simulator before buying with real money.