Insights
Bonds have a reputation for being slow, quiet, boring investments, while in reality they are volatile trading instruments. Most people don’t believe that at first. But it’s true — and understanding why changes everything about how you build a portfolio.
Bonds are supposed to be the safe part of the portfolio. The stable part. The part you own when you don’t want to take risk.
That reputation is not wrong exactly. But the reason for it is almost never explained correctly.
Bond prices move every day. Sometimes dramatically. In 2022, long dated bonds lost more than 30% of their value — more than the stock market in many downturns. Nobody watching their bond fund that year would have called it stable.
The reason bonds have a reputation for stability has nothing to do with their behavior in the market. It has everything to do with one simple feature: they have a start date and an end date.
You lend money. You usually get it back. Equities have no such promise. A stock has no maturity date, no guaranteed return of principal. Its only exits are bankruptcy, acquisition, or liquidation. A bond, held to maturity, returns your principal plus the agreed interest. The daily price swings in between become irrelevant if you never have to sell.
The strategy that makes professional bond managers look like they’re managing volatility effortlessly is called duration matching. And it is simpler than it sounds.
Duration simply answers one question: how long until I get my money back? That’s it. Duration is just a measure of time — specifically, the time until a bond returns your principal and interest. A two-year bond has a duration of roughly two years. A ten-year bond, roughly ten.
A bond manager with cash needs in three years buys bonds that mature in three years. The daily price swings between now and then don’t matter. They committed to the term. The term delivers.
Yes, of course I am simplifying it, but the logic is not exotic or sophisticated — it’s extraordinarily disciplined, and most individual investors never do it because most individual investors never think about when they will actually need their money.
That is the gap this approach closes.
Bond managers are some of the most rigorous thinkers in finance. The ones I worked alongside were meticulous about matching their cash needs to their maturities.
That discipline translates directly to personal financial planning.
When you know what you need and when you need it, your portfolio stops being a collection of holdings and starts being a structured plan. The near-term needs are funded by stable, liquid assets. The intermediate needs are covered by bonds matched to when you’ll need them. The long-term capital stays fully invested in equities, compounding without interruption.
That structure is the Three-Bucket Framework. And it is the intellectual foundation for how I build every client portfolio.
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