Brian Feroldi Profile picture
May 1, 2025 11 tweets 4 min read Read on X
Warren Buffett's favorite book:

Securities Analysis by Ben Graham

Here are the most powerful lessons every investor should know: Image
1. Investing versus speculating

Investors make decisions based on the facts and value of the asset.

Speculators make decisions based on other participants' behaviors.

Know the difference: Image
2. Good business vs. bad business

Graham defines in simple terms what makes a business "good".

The inverse of these conditions makes it "bad."

Investors should focus on buying good businesses. Image
3: Left brain + right brain thinking

The numbers are essential, but Graham believed good analysis must include qualitative factors, too. Image
4: "Intrinsic value" is a moving target.

The value of a business changes over time. It's not a fixed number.

Investors must understand that value of a business is dynamic and subject to change. Image
5: Focus on earnings power

The bigger the fluctuations in a company's earnings, the less reliable your valuation analysis will be.

Focus on companies with predictable futures. Image
6: Use history, not just the latest earnings report.

Rather than emphasizing the recent results, Graham averaged the companies' history.

Look further back at a company's operating results before you conclude. Image
7: Change is not something to profit from, but guard against.

This is a core principle that Buffett has put into practice for decades. Image
8. Think like a private business owner:

- How much money must I put up?
- How much cash will I get back?
- How fast?

"Why should investors in publicly traded stocks ask different questions?" Image
9: Focus on dividends & income, not the future price.

Don't just count on capital appreciation. Focus on income & dividend potential first and capital appreciation as a bonus.

This shift will cause you to think like an owner. Image
Like this thread? Follow me @BrianFeroldi.

I teach investors how to analyze businesses.

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More from @BrianFeroldi

Sep 6, 2025
Tangible vs Intangible Assets.

What's the difference?

Here's everything you need to know: Image
They confused me until I discovered an easy way to distinguish them:

𝗧𝗮𝗻𝗴𝗶𝗯𝗹𝗲 𝗔𝘀𝘀𝗲𝘁𝘀 𝗖𝗮𝗻 𝗕𝗲 𝗧𝗼𝘂𝗰𝗵𝗲𝗱

𝗜𝗻𝘁𝗮𝗻𝗴𝗶𝗯𝗹𝗲 𝗔𝘀𝘀𝗲𝘁𝘀 𝗖𝗮𝗻'𝘁 Image
Another major difference.

- Tangible assets are depreciated

- Intangible assets are amortized Image
Read 6 tweets
Aug 31, 2025
How to analyze an Income Statement, FAST.

Warren Buffett’s 8 Income Statement 'Rules of Thumb': Image
1: Gross Margin

🧮 Equation: Gross Profit / Revenue

👍 Rule of Thumb: 40% or higher

🤔 Buffett's Logic: A consistently high gross margin signals that the company isn’t competing exclusively on price. Image
2: SG&A Margin

🧮 Equation: SG&A Expense / Gross Profit

👍 Rule of Thumb: 30% or lower

🤔 Buffett's Logic: Wide-moat companies don’t need to spend a lot on overhead to operate & convince consumers to buy. Image
Read 11 tweets
Aug 30, 2025
Some stocks are STRONG BUYS when they fall

Other stocks are SELLS when they fall

How can you tell the difference?

Watch for these 5 financial yellow flags: Image
1) GOODWILL WRITEDOWN

This represents the premium a company pays for an acquisition above its fair market value.

If there’s a major goodwill write-down on the Income Statement, it means management has wasted a TON of capital. Image
2) GROSS MARGIN DECLINING

1: The competition is forcing me to lower prices
2: Demand is weak
3: My suppliers are raising prices

Either way, it can be a thesis-busting development Image
Read 9 tweets
Aug 29, 2025
Capitalism is brutal.

If you invest, you MUST know how to identify a moat.

Here are 9 financial “rules of thumb” that Warren Buffett uses to tell if a company has one: Image
1: Gross Margin

Found: Income Statement

Formula: Gross Profit / Revenue

Moat: Consistently above 40%

No Moat: Under 40% & volatile Image
Buffett’s logic:

A consistently high gross margin signals that the company isn’t competing exclusively on price.

A high gross margin also provides ample gross profit to pay expenses and leaves money for shareholders.
Read 22 tweets
Aug 27, 2025
How to analyze an income statement in less than 2 minutes: Image
The income sheet is one of the three major financial statements.

It shows a company’s:
▪️Revenue (Sales)
▪️Expenditures (Costs / Expenses)
▪️Net Income (Earnings, Profits)

Over a period of time. Image
Management teams have leeway in categorizing their income statement.

This means that not all income statements look the same.

Here is a typical layout and the meaning of the most commonly used terms: Image
Read 11 tweets
Aug 26, 2025
Financial Statements For Beginners

Want to learn accounting?

Study these 9 simple infographics (a visual thread) ↓ Image
Image
Financial Statements DO NOT have a universal layout

Here are some other balance sheet terms you might see: Image
Read 9 tweets

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