- Describe the difference between a company, a share and an exchange.
- Separate price movement from business performance.
- Create a first-pass stock research checklist.
Price is a quote, not a verdict
When a stock trades at a particular price, that number tells you where a transaction could occur at that moment. It does not tell you whether the company is cheap or expensive by itself. A share priced at 10 can represent a larger valuation than a share priced at 100 if the businesses have different share counts.
Market capitalization—share price multiplied by shares outstanding—gives a broader size measure. Enterprise value, revenue, profit, cash flow and debt answer different questions. Good research uses the measure that matches the question instead of treating one ratio as a magic answer.
- Share price: the per-share quote.
- Market capitalization: the equity value implied by all shares.
- Earnings and cash flow: clues about business performance, not guarantees.
Primary and secondary markets
A company can raise capital by issuing shares in a primary transaction. After issuance, investors trade existing shares with one another in the secondary market. The company’s daily cash balance usually does not change every time one investor sells to another, but the quoted price can influence valuation and future financing.
Exchanges and brokers provide infrastructure, order matching and custody arrangements. Fees, execution rules, market hours and investor protections differ by jurisdiction, so read the relevant account documents rather than assuming all platforms work the same way.
A practical first screen
Start with the business model: who pays, what is being sold, how repeatable the revenue is and what could make the model weaker. Then inspect the most recent filings or investor materials for revenue trends, margins, debt, cash generation, dilution and management incentives.
Finally, write a risk case. Competition, regulation, customer concentration, high valuation, cyclicality and dependence on one product can matter more than a compelling story. Research is stronger when the reasons not to own a company are visible too.
- What could reduce demand?
- How does the company finance itself?
- What assumptions are already reflected in the price?
- What is the time horizon for the thesis?
Two stocks, two prices
Company A has 1 billion shares at 10, so its implied equity value is 10 billion. Company B has 10 million shares at 100, so its implied equity value is 1 billion. The lower share price is not automatically the smaller or cheaper company.
Carry these four ideas forward.
- Understand the business before the ticker.
- Use more than one financial measure.
- Read recent company disclosures.
- Write a downside case and a time horizon.
Three questions before the next tab.
Choose the answer that best matches the lesson. This is a memory check, not a market signal.
Before you move on
Can a stock price tell me if a company is cheap?+
Not by itself. You need share count, financial results, growth expectations, balance-sheet information and a valuation framework.
What is a dividend?+
A dividend is a distribution a company chooses to make to eligible shareholders. It is not guaranteed and can be reduced or cancelled.
Should beginners pick individual stocks?+
Some learners start with broad diversified funds or paper trading while studying individual companies. The appropriate choice depends on goals, risk and local access.