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The Four Building Blocks: Cash, Bonds, Stocks, Real Estate
💡 The main asset classes trade return for risk — cash is safe but slow, stocks grow fastest but swing hardest, and mixing them smooths the ride.
Every portfolio is built from a handful of asset classes — broad groups of investments that behave similarly and share a risk/return profile. The four you'll meet most often are cash, bonds, stocks, and real estate. Recall the core trade-off from earlier: higher expected return comes with higher risk (bigger ups and downs). Each asset class sits at a different point on that spectrum.
Cash (savings accounts, money-market funds) is the safest and most liquid — easy to spend instantly — but earns the least, often barely keeping up with inflation. Bonds are loans you make to a government or company that pay fixed interest; they're steadier than stocks and cushion a portfolio when markets fall. Historically, U.S. bonds have returned roughly 4–5% a year, versus about 10% a year for the U.S. stock market (before inflation) over the long run.
Stocks (shares of ownership in companies) offer the highest long-run growth but swing hard — a 20–30% drop in a bad year is normal. Real estate (property you rent out, or a REIT — a fund that owns property) sits in between: it can pay steady rental income and tends to move somewhat independently of stocks.
That last point is why we hold a mix. Because these classes don't all rise and fall together, combining them — diversification — smooths the ride. Cash covers near-term needs, bonds steady the portfolio, stocks drive growth, and real estate adds income and variety.