Security Analysis
What you will learn
Connect financial statements and valuation assumptions when assessing an estimated value.
Read and apply
Read the Security Analysis book page (opens in a new tab)
On the book page, choose one idea relevant to the objective above. Write what evidence would support it and what could weaken it. Then complete the filing or source activity below and return to these course questions.
Check your understanding
Choose an answer, then open the feedback.
What is the aim of security analysis in this lesson?
A. Estimate value and risk from evidence. B. Predict every daily price move. C. Guarantee a bargain.Show answer and feedback
A. Financial information and assumptions support an estimate, not a certain value.
Why examine both earnings and a balance sheet?
A. Earnings alone reveal all obligations. B. They show different aspects of performance and financial position. C. Assets always equal market value.Show answer and feedback
B. Income and financial position need to be read together with notes and cash flow.
What does a margin of safety depend on?
A. An exact future price. B. A fixed percentage that works for all securities. C. The uncertainty in a valuation estimate and the price paid.Show answer and feedback
C. A valuation gap is only as useful as the assumptions behind the estimate.
Why question: Why can two careful analysts reach different values for the same company?
Show a sample explanation
They may use different cash-flow, risk and growth assumptions; the estimate is sensitive to uncertain future outcomes.
Try a filing-based valuation check
Open the prefilled SEC filing search. Open Apple’s prefilled SEC filing search. From its latest 10-K, record net income, cash flow and debt with the reporting period. Explain why these figures alone do not produce a certain fair value.
Key takeaways
- Financial information and assumptions support an estimate, not a certain value.
- Income and financial position need to be read together with notes and cash flow.
- A valuation gap is only as useful as the assumptions behind the estimate.
This activity is for financial education. An example or book framework does not guarantee investment results.
AI responses are for educational purposes. Always verify with official course materials.
This lesson teaches a concept. It is general education, not advice about your money. Before you act on anything you learn here, speak to someone licensed.
Sources and reference material
Primary sources and original reference material for the concepts discussed on this page.
- SEC EDGAR: Apple company filings
- Benjamin Graham and David Dodd: Security Analysis (publisher record)
- SEC: Beginners' Guide to Financial Statements
- SEC Investor.gov: How to Read a 10-K
References added 14 October 2026.
AI responses are for educational purposes. Always verify with official course materials.
This lesson teaches a concept. It is general education, not advice about your money. Before you act on anything you learn here, speak to someone licensed.
This lesson teaches a concept. It is general education, not advice about your money. Before you act on anything you learn here, speak to someone licensed.
