Track 01 · Market Foundations
Stocks, bonds and ETFs compared
The three building blocks of most portfolios, what each one promises you, and how they behave differently.
Drawdown is the fall from a previous peak. Stocks take deep ones and historically recover higher; bonds move far less in both directions.
Illustrative shapes for teaching the difference, not real index history. ETFs wrap either asset into one ticket.
Stocks: ownership
Stocks give you equity: upside is open-ended because a company can keep growing, and downside is real because the business can shrink or fail. Historically that trade-off is what has paid investors for taking risk.
Individual stocks are concentrated by nature: one company’s bad quarter can cost you regardless of how good the business is over a decade.
Bonds: lending
A bond is a loan you make to a company or government, repaid with interest on a schedule. Your return is mostly known in advance, which makes bonds steadier and caps how much they can grow.
Bonds often move opposite to stocks when rate expectations shift, which is why they have historically been held alongside equities rather than instead of them.
Funds and ETFs: a basket in one ticket
A fund bundles hundreds of securities into a single instrument you can buy like a stock. An index ETF simply tracks a benchmark such as the S&P 500, so one purchase gives you a slice of every constituent.
The practical effect is instant diversification and a low, known cost (the expense ratio) instead of the research burden of picking each holding yourself.
How they fit together
The mix between growth assets (stocks), income assets (bonds) and diversified wrappers (funds) is your asset allocation, the decision that explains most of a portfolio’s return and risk over time.
That decision belongs to the risk track, where we turn it into numbers: allocation, drawdowns and position sizing.
Three things to remember
- 01Stocks are ownership with open-ended upside; bonds are lending with a known schedule.
- 02Funds and ETFs buy instant diversification for a published annual fee.
- 03The stock/bond split (your asset allocation) drives most of your long-term results.
Try it on live data
Tools on this site are for research and education. Nothing here is financial advice or a recommendation to buy or sell.