Insights: Bond ballast
Bonds feel stable because they have a start date and an end date, not because their prices stay calm. Held to maturity, a bond usually returns your principal plus the agreed interest, which is why I match bonds to the years you will need the money.
Bonds have a reputation for being slow, quiet, boring investments, while in reality they are volatile trading instruments.
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 isn’t wrong, but the reason for it is almost never explained correctly.
Bond prices move every day and sometimes dramatically. In 2022, long-dated bonds lost more than 30% of their value, a larger loss than the stock market suffers 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.
When you lend money (buy bonds), 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. Daily price swings 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.
Simply put, duration measures a bond’s sensitivity to interest rate changes and reflects when its cash flows occur, or when the bond pays the stated coupon. In practical terms, it helps investors understand how much a bond’s price may change when interest rates move.
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, and the term delivers. Everything in between is either opportunity or noise.
Yes, of course I am simplifying it, but the logic isn’t exotic or sophisticated… It’s just extraordinarily disciplined, and many individual investors don’t use it as an investment strategy because they don’t think about when they will actually need their money.
That is the gap this approach closes.
A bond manager’s 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. Stable, liquid assets fund near-term needs. Bonds cover intermediate needs and are 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, including my own.
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