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Undervalued stock

Undervalued stock is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Undervalued stock rather than just read about it. In short: An undervalued stock is defined as a stock that is selling at a price significantly below what is assumed to be its intrinsic value. For example, if a stock is selling for $50, but it is worth $100 based on predictable future cash flows, then it is an undervalued stock.

Key takeaways

  • Undervalued stock belongs to mathematics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Undervalued stock to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Undervalued stock from memory before moving on to harder problems.

Reference excerpt

An undervalued stock is defined as a stock that is selling at a price significantly below what is assumed to be its intrinsic value. For example, if a stock is selling for $50, but it is worth $100 based on predictable future cash flows, then it is an undervalued stock. The undervalued stock has the intrinsic value below the investment's true intrinsic value. Numerous popular books discuss undervalued stocks. Examples are The Intelligent Investor by Benjamin Graham, also known as "The Dean of Wall Street," and The Warren Buffett Way by Robert Hagstrom. The Intelligent Investor puts forth Graham's principles that are based on mathematical calculations such as the price/earning ratio. He was less concerned with the qualitative aspects of a business such as the nature of a business, its growth potential and its management. For example, Amazon, Facebook, Netflix and Tesla in 2016, although they had a promising future, would not have appealed to Graham, since their price-earnings ratios were too high. Graham's ideas had a significant influence on the young Warren Buffett, who later became a famous US billionaire.

Determining factors Morningstar uses five factors to determine when something is a value stock, namely:

price/prospective earnings (a predictive version of price/earnings ratio sometimes called Forward P/E.) price/book price/sales price/cash flow dividend yield Warren Buffett, also known as "The Oracle of Omaha," stated that the value of a business is the sum of the cash flows over the life of the business discounted at an appropriate interest rate. This is in reference to the ideas of John Burr Williams. Therefore, one would not be able to predict whether a stock is undervalued without predicting the future profits of a company and future interest rates. Buffett stated that he is interested in predictable businesses and he uses the interest rate on the 10-year treasury bond in his calculations. Therefore, an investor has to be fairly certain that a company will be profitable in the future in order to consider it to be undervalued. For example, if a risky stock has a PE ratio of 5 and the company becomes bankrupt, this would not be an undervalued stock. Some qualities of companies with undervalued stocks are:

The company's earning history is stable. The company does not specialize in high-technology that can become obsolete overnight. The company is not in the middle of some financial scandal. The company's low PE ratio is not due to profits realized from capital gains. The company's low PE ratio is not due to a major decline in profitability. The company's PE ratio is below its average PE ratio for the last 10 years. The company is selling at a price below its tangible asset value. The company's trailing 3-years earnings has risen over the past 10 years. The company's credit rating is AAA, AA, or A, or even better, there is no rating because there is no debt at all. The company did not have a loss during the last recession. The company's PEG ratio is low. A Price/Earnings/Growth rate below 1 means the PE ratio is less than the growth rate. An excellent stock at a fair price is more likely to be undervalued than is a poor stock at a low price, according to Charles Munger, the Harvard-educated partner of Buffett. An excellent stock continues to rise in value over the long term, while a poor stock declines in value. An undervalued stock will usually have a low PE ratio. For example, a PE ratio of 10 is much better than a PE ratio of 20. Some high-flying Internet stocks had PE ratios of 30, 40, 50, 100, 200 or more in year 2000, prior to the bursting of the Internet stock bubble. Investors of these Internet stocks did not purchase undervalued stocks, as they later learned.

See also Stock valuation Value investing Penny stock Multibagger stock

References

Worked examples

Example 1 — a first encounter with Undervalued stock

Start with the simplest possible case. Write down what Undervalued stock claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Undervalued stock before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Undervalued stock ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Undervalued stock

In research
Undervalued stock appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Undervalued stock in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Undervalued stock is common in secondary-school and first-year university syllabi. It links to neighbouring topics Business terms, Finance theories, Investment, so understanding it makes those chapters shorter.
In everyday life
Look for Undervalued stock outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Undervalued stock in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Undervalued stock means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Undervalued stock out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Undervalued stock in simple terms?

An undervalued stock is defined as a stock that is selling at a price significantly below what is assumed to be its intrinsic value. For example, if a stock is selling for $50, but it is worth $100 based on predictable future cash flows, then it is an undervalued stock.

Why does Undervalued stock matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Undervalued stock?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Undervalued stock.

Tags

  • Business terms
  • Finance theories
  • Investment
  • Mathematical finance
  • Stock market
  • Valuation (finance)

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