Equity Markets and Valuation

TL;DR

Equity markets are where company shares are bought and sold, providing capital for businesses and ownership stakes for investors. Valuing these shares involves figuring out what a company is truly worth, often by estimating its future earnings. Understanding these markets helps you make informed investment decisions and analyze company performance.

1. The Mental Model

Think of a company as a pie. When you buy shares, you're buying a slice of that pie. Equity markets are the bakeries where these slices are traded, and valuation is about deciding how much a fair slice is actually worth.

2. The Core Material

Equity markets are essentially marketplaces for buying and selling stocks (or shares) of publicly traded companies. When you own a stock, you own a tiny piece of that company. Companies issue stock to raise money for growth, operations, or paying down debt.

Why Invest in Equities?

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• Capital Appreciation: The stock price goes up, and you sell it for more than you paid.
• Dividends: Some companies share a portion of their profits with shareholders regularly.
• Voting Rights: As a shareholder, you usually get to vote on important company matters.

How Equities are Traded

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Shares are traded on stock exchanges (like the NYSE or NASDAQ) through brokers. There are two main markets:

• Primary Market: Where companies first sell their shares to the public in an Initial Public Offering (IPO).
• Secondary Market: Where investors buy and sell existing shares from each other. This is what most people think of when they talk about the stock market.

Understanding Valuation

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Valuation is the process of determining the current worth of a company or an asset. For equities, it's about figuring out what a stock should be worth, which helps you decide if it's currently undervalued (a good buy) or overvalued (maybe avoid or sell).

Here's a common framework for thinking about valuation approaches:

graph TD
    A["Valuation Approaches"] --> B["Absolute Valuation"];
    A --> C["Relative Valuation"];

    B --> D["Discounted Cash Flow (DCF)"];
    B --> E["Dividend Discount Model (DDM)"];

    C --> F["Comps (Comparable Company Analysis)"];
    C --> G["Precedent Transactions"];

Discounted Cash Flow (DCF)

This is a fundamental absolute valuation method. The idea is that a company's value is the present value of all its future free cash flows (FCF).

1. Project Free Cash Flow (FCF): Estimate how much cash the company will generate in the future (typically 5-10 years).
2. Estimate Terminal Value: What's the value of all cash flows beyond your projection period? This is often calculated using a perpetuity growth model.
3. Discount to Present: Use a discount rate (usually the Weighted Average Cost of Capital - WACC) to bring all those future cash flows and the terminal value back to today's dollars. The sum is your estimated intrinsic value.

Why it's useful: It's based on intrinsic value, less influenced by market sentiment.
Why it's tricky: Highly sensitive to assumptions (growth rates, discount rate).

Dividend Discount Model (DDM)

A simpler absolute valuation model, best for mature companies that consistently pay dividends. It values a stock based on the present value of its expected future dividends.

• If dividends grow at a constant rate (Gordon Growth Model): $P_0 = \frac{D_1}{r - g}$
  • $P_0$ = Current stock price
  • $D_1$ = Expected dividend next year
  • $r$ = Required rate of return (cost of equity)
  • $g$ = Constant dividend growth rate

Relative Valuation (Comps)

Instead of calculating an intrinsic value from scratch, you compare the company you're valuing to similar companies (comparables) in the market.

1. Identify Comps: Find publicly traded companies in the same industry with similar business models, size, and growth prospects.
2. Select Multiples: Choose appropriate valuation multiples (e.g., Price-to-Earnings (P/E), Enterprise Value-to-EBITDA (EV/EBITDA), Price-to-Sales (P/S)).
3. Calculate Multiples for Comps: Find the average or median multiple for your comparable companies.
4. Apply to Target: Multiply your target company's relevant metric (e.g., earnings, EBITDA, sales) by the average comp multiple to get an estimated value.

Why it's useful: Quick, easy to understand, and reflects current market sentiment.
Why it's tricky: Finding truly comparable companies is hard; market sentiment can be irrational.

3. Worked Example

Let's do a quick relative valuation using the P/E multiple.

You're trying to value "InnovateTech Inc." which just reported Earnings Per Share (EPS) of \$2.50. You've identified two comparable companies:

• Comp A: Stock Price = \$100, EPS = \$5.00
• Comp B: Stock Price = \$60, EPS = \$3.00

1. Calculate P/E for Comps:

   • Comp A P/E = \$100 / \$5.00 = 20x
   • Comp B P/E = \$60 / \$3.00 = 20x

2. Determine Average P/E:

   • Average P/E = (20x + 20x) / 2 = 20x (In this simple case, it's the same for both.)

3. Apply to InnovateTech Inc.:

   • InnovateTech Inc.'s Estimated Share Price = InnovateTech Inc.'s EPS * Average P/E
   • Estimated Share Price = \$2.50 * 20 = \$50.00

So, based on comparable companies, a fair price for InnovateTech Inc. stock might be around \$50.00. If it's currently trading at \$40, it might be undervalued. If it's at \$60, it might be overvalued.

4. Key Takeaways

• Equity markets facilitate the buying and selling of company shares, offering investors ownership and potential returns.
• Valuation is the process of determining a company's intrinsic worth, helping investors decide if a stock is a good buy or sell.
• Absolute valuation methods (like DCF, DDM) aim to find a company's inherent value based on its future cash flows or dividends.
• Relative valuation methods (like Comps) compare a company to similar ones in the market using multiples.
• No single valuation method is perfect; combining approaches often gives a more robust view.
• The discount rate (WACC or cost of equity) is crucial in present value calculations, reflecting the risk of future cash flows.

Common Mistakes to Avoid:

• Relying on a single valuation method: Always triangulate your findings with multiple approaches.
• Using unrealistic growth rates in DCF: Overly optimistic projections can drastically inflate your valuation.
• Ignoring qualitative factors: A company's management, competitive landscape, and brand strength aren't directly in the numbers but are vital.
• Not adjusting for differences in comps: "Comparable" doesn't mean identical; always consider size, growth, and risk differences.

5. Now Try It

Pick a publicly traded company you're interested in. Go to a financial website (like Yahoo Finance or Google Finance) and find its current stock price and its P/E ratio. Then, find two or three competitor companies in the same industry. Calculate their P/E ratios. Based on the average P/E of the competitors, what would be a "fair" price for your chosen company's stock? Compare this to its actual current price. What does that suggest about whether it's overvalued or undervalued? (Spend about 15 minutes on this.)