Private beta · recursosvalue.com

The market names a price. You decide the value.

MARGIN is a value-investing simulator. Read a company's filings, work out what it's worth, and buy only when the price gives you a margin of safety. Then survive Mr. Market's manias and panics —quarter after quarter, for years.

Log in to play Invite-only while the beta runs.

Price vs. intrinsic value Intrinsic value Mr. Market (price) Margin of safety

It isn't trading. It's analysis.

No candlestick charts, no blinking red buttons. You are a fund analyst: annual reports, income statements and balance sheets land on your desk, and your job is to understand the business before you risk a single euro.

Price is what you pay; value is what you get. When the two diverge far enough —and only then— you buy. The rest of the time, you wait. Patience is a skill you practise, just like valuation.

Four decisions, over and over.

1
Read the business

Open the filing: revenue, debt, owner earnings, footnotes. The signal lives in the fine print.
2
Put a price on it

Estimate intrinsic value on the worksheet. Project, discount, and be honest about your assumptions.
3
Demand a margin of safety

Buy only at a discount to your value. The margin isn't optional —it's what protects you when you're wrong.
4
Survive Mr. Market

Quarters advance. Manias, panics and frauds arrive. Size your position and hold your thesis —or correct it.

It rewards process, not luck.

Most stock-market games reward the lucky moonshot. MARGIN tells you whether you were right by judgment or by luck —and proves it.

Skill vs. luck

Every run computes your Skill Score and re-simulates alternate futures: did you win on process, or catch a good streak?

No leaderboard, no prizes

Nothing to game. The only score that matters is the quality of your decisions, graded against a rubric.

A real curriculum

Bilingual (EN/ES) cases that actually teach: price vs. value, owner earnings, moats, and behavioural bias.

Deterministic & replayable

Every world grows from a seed. Share yours, replay the exact game, and compare your judgment with someone else's.

Learn by reading real (simulated) businesses.

Chapter 1

Price vs. value

The discount Mr. Market offers —and why price is not value.

Chapter 2

Owner earnings

Quality of earnings: what the owner of a business actually takes home.

Chapter 3

Moats

Durable competitive advantage —and telling a real moat from a cardboard one.

Ready to think like a value investor?

Enter the private beta, start with Chapter 1, and buy your first business with a margin of safety.

Log in to play

MARGIN is an educational simulation. It is not financial advice or an investment recommendation. The companies, prices and financial statements are fictional and generated deterministically.

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