Inversión Familiar

🔍 Value Investing

The philosophy of buying excellent companies at reasonable prices, or reasonable companies at excellent prices. Started by Benjamin Graham in the 1930s and popularized by his disciple Warren Buffett, it seeks stocks whose market price is below their real intrinsic value, leaving a 'margin of safety' that protects against the unexpected.

Puntos clave y accionables

  • 1The key concept: 'margin of safety'. You only buy when the price is significantly below your valuation of intrinsic value — at least a 20-30% discount. This protects you if your analysis is slightly wrong.
  • 2Fundamental analysis: you study annual accounts (balance sheet, income statement, cash flows). You look for companies with low debt, stable margins, ROE >15%, and a defensible competitive advantage (moat).
  • 3Basic metrics: PER (Price/Earnings ratio) — multiples below the sector average may indicate undervaluation; low P/B (Price/Book); high FCF yield; net debt/EBITDA <2.
  • 4The 'moat' (competitive moat): what keeps the company making money despite competition. Strong brands (Apple, Coca-Cola), network effects (Visa, Google), high switching costs (ERP software), economies of scale...
  • 5Circle of competence: only invest in businesses you understand. If you cannot explain what a company does in 1 minute and why it will make money in 10 years, do not buy it.
  • 6Extreme patience: the market can keep a company undervalued for years. Value investors wait for the black swan event or the eventual recognition of value.
  • 7Uncomfortable reality: pure value investing works, but it requires many hours of analysis. For most individual investors, index funds are a more efficient option.

Errores comunes a evitar

  • ⚠️Buying cheap companies ONLY because they are cheap. They may be 'value traps' — companies in structural decline whose low price reflects real problems.
  • ⚠️Ignoring disruptive sector changes. Kodak looked like a perfect value play before the digital revolution. So did Blockbuster. A cheap metric does not save an obsolete business.
  • ⚠️Blindly trusting Warren Buffett or Charlie Munger without understanding why they bought something. They have information, teams and time horizons that you do not have.

Herramientas y plataformas recomendadas

The Intelligent Investor (Benjamin Graham)
The foundational book. Buffett says: 'the best investment book ever written'. Required reading.
InvestingPro
Platform with advanced filters, ratios, automatic valuations and sector comparisons.
SimplyWall.st
Easy visualization of fundamentals and valuation. Ideal for beginners without needing Excel.
Finviz Screener
Free US stock screener with multiple fundamental criteria (PER, P/B, ROE, debt...).
Contenido educativo basado en un cuaderno de referencia y contrastado con fuentes financieras reconocidas. No constituye asesoramiento financiero regulado por la CNMV.Cada situación familiar es única — evalúa tu perfil de riesgo, horizonte y fiscalidad antes de invertir.