Bond ETFs vs Individual Bonds: Which Should You Own

Bond investing seems straightforward until you discover that bond ETFs and individual bonds behave fundamentally differently — not just in convenience, but in core structure and risk profile. In 2022, investors who held AGG (iShares Core U.S. Aggregate Bond ETF) lost approximately 13% of their principal. Investors who held individual U.S. Treasury bonds and held them to maturity lost nothing. The mechanics of that divergence are what this article explains.

Understanding the difference is not just academic. It determines whether fixed income in your portfolio behaves like a stabilizer or adds a second source of volatility on top of your stocks.

The Fundamental Difference: Maturity

This is the key concept. Individual bonds have a maturity date. On that date, the issuer returns your principal in full (assuming no default), regardless of where interest rates have moved in the interim. Bond ETFs do not have a maturity date. They hold a rolling portfolio of bonds, continuously buying new bonds and selling maturing ones to maintain a target duration. They never return your principal in a lump sum.

This difference creates the divergent outcomes seen in 2022:

When the Federal Reserve raised rates aggressively — from near-zero to 4.5% in roughly a year — the prices of existing bonds fell sharply. This is the inverse relationship between bond prices and interest rates: when rates rise, existing bonds with lower coupons become less valuable, so their prices fall.

An investor holding a 10-year Treasury bond bought in 2021 at 1.5% yield watched its market value fall significantly in 2022. But if they held it to maturity in 2031, they received every promised coupon payment and their full principal back. The 2022 price drop was paper loss, not economic loss.

An investor holding AGG in 2022 had no such guarantee. AGG’s duration (weighted average term to maturity, adjusted for cash flows) was approximately 6-7 years. As rates rose, AGG lost 13% of its net asset value — and that loss is realized when you sell, with no maturity date to “bail you out.” The only way to recover is through higher future income as the fund reinvests in higher-yielding bonds, which takes years.

Duration: The Number That Explains Interest Rate Risk

Duration is the single most important concept for understanding bond risk. Formally, duration measures the sensitivity of a bond or bond portfolio’s price to changes in interest rates.

Modified duration in practice: A bond or fund with a modified duration of 7 loses approximately 7% of its market value when interest rates rise by 1 percentage point. It gains approximately 7% when rates fall by 1 percentage point.

AGG had a duration of roughly 6.5 in early 2022. Rates rose approximately 4 percentage points. The math: 6.5 × 4 = 26% theoretical loss, partially offset by coupon income received during the year, resulting in the ~13% actual loss. This was the worst calendar year for U.S. investment-grade bonds in modern history.

TLT (iShares 20+ Year Treasury ETF), with duration around 17-18 years, lost approximately 31% in 2022. Investors holding TLT as a “safe haven” learned that long-duration bonds in a rising rate environment are not safe havens at all — they are a leveraged bet on rates staying low.

Short-duration funds like SGOV (iShares 0-3 Month Treasury Bill ETF) with duration near zero held their value throughout 2022 and generated meaningful income as the Fed raised rates. SGOV returned roughly 2% in 2022 while the rest of the bond market collapsed.

This history illustrates why duration is the variable to manage actively in fixed income, not just yield.

When Individual Bonds Are Better

1. You have a specific cash flow need at a known future date.

If you need $50,000 in 36 months to pay for a child’s college tuition, buying a Treasury note maturing in 36 months guarantees you receive approximately $50,000 (plus coupons along the way). A bond ETF with the same average maturity does not provide this guarantee because it continuously rolls its holdings — you might need to sell at an inopportune moment when rates have risen and prices are down.

2. You want to hold to maturity and eliminate market-price volatility.

If you genuinely intend to hold a bond until it matures and collect coupons, the interim price fluctuations are meaningless. You bought a 5-year corporate bond at par with a 5.5% coupon; five years from now you receive par value back. The bond’s market price in years two or three is irrelevant to your economics.

3. You are building a bond ladder.

A bond ladder is a classic income strategy: buy individual bonds maturing in successive years (e.g., bonds maturing in 2027, 2028, 2029, 2030, 2031), reinvesting each maturing bond at the then-current rate. This structure provides regular liquidity, automatically reinvests at current rates as bonds mature, and eliminates the risk of needing cash at a bad time. Bond ETFs cannot replicate this structure because they never mature.

4. You want credit-risk selectivity.

With individual bonds, you can own specific corporate or municipal bonds from issuers you have researched. If you believe IBM is a more creditworthy issuer than the aggregate corporate bond market, you can overweight it precisely. Bond ETFs require you to own the market-cap-weighted allocation to each issuer, which in AGG’s case includes exposure to all investment-grade issuers in proportion to how much debt they have outstanding — rewarding the most indebted companies.

5. You are in a high tax bracket and want munis.

Municipal bonds (munis) pay interest that is federal income tax-exempt (and often state-exempt for bonds issued in your state). For investors in the 32%+ bracket, the after-tax yield on munis frequently exceeds comparable taxable bond yields. Individual muni bonds can be selected by state, credit quality, and duration with precision; muni ETFs aggregate this but with less specificity.

When Bond ETFs Are Better

1. You have a small amount to invest.

Individual bonds typically trade in $1,000 minimum denominations, and the secondary market becomes more favorable at $10,000-$25,000 face value. Below that, bid-ask spreads on individual bonds can be punishing — you pay more to buy and receive less when you sell. Bond ETFs provide professional market-making and tight spreads regardless of how much you invest. A $1,000 investment in AGG is economically equivalent to owning a diversified portfolio of thousands of investment-grade bonds.

2. You want instant diversification.

AGG holds approximately 10,000+ bonds. An individual investor building a diversified bond portfolio from scratch would need millions of dollars and significant research capacity to replicate this. ETFs solve the diversification problem at minimal cost.

3. You are focused on income without a specific maturity need.

If you are retired and drawing income from your portfolio without requiring specific cash at specific dates, bond ETFs generate monthly distributions that are straightforward to manage. You do not need to track individual bond maturities and reinvest proceeds.

4. You want liquidity.

Bond ETFs trade like stocks — you can buy or sell at any moment during market hours at prices close to net asset value. Individual bonds trade in the over-the-counter market with variable liquidity. A corporate bond you bought from a broker may be difficult to sell quickly at a fair price if you need cash unexpectedly. Treasuries have deep secondary market liquidity, but many corporate and municipal bonds do not.

5. Simplicity and maintenance.

Bond ETFs do not require decisions about when to reinvest maturing proceeds, which new bonds to buy, or how to handle calls and tender offers. For the investor who wants fixed income exposure with minimal ongoing attention, ETFs are the appropriate solution.

Bond ETF Comparison: AGG, BND, TLT, SGOV

ETF	Focus	Duration (approx.)	Yield (approx.)	Expense Ratio	2022 Return	Best For
AGG (iShares Core U.S. Aggregate)	Broad U.S. investment-grade	6-7 years	~4.5%	0.03%	-13.0%	Core bond allocation
BND (Vanguard Total Bond Market)	Broad U.S. investment-grade	6-7 years	~4.5%	0.03%	-13.2%	Core bond allocation
TLT (iShares 20+ Year Treasury)	Long Treasuries	17-18 years	~4.3%	0.15%	-31.2%	Rate bet; inflation hedge (with caution)
SGOV (iShares 0-3 Month T-Bill)	T-bills, near zero duration	<0.1 years	~5.0%	0.09%	+2.0%	Cash management, capital preservation

AGG and BND are functionally equivalent — different wrappers on nearly identical portfolios of investment-grade U.S. bonds. BND is slightly broader (includes some non-agency MBS), and both are fine choices for a core bond allocation. The key point is that both carry meaningful duration risk: in a rising rate environment, both will lose principal. In a falling rate environment, both will gain.

TLT is the most frequently misunderstood instrument on this list. It is not a conservative bond holding — it is a high-duration instrument that behaves like a leveraged bet on falling long-term interest rates. It has historically been an effective hedge against equity market crashes (when rates fall as the Fed cuts), but the 2022 experience proved it is not a reliable equity hedge when inflation is the threat rather than recession. Investors who held TLT in 2022 alongside a stock portfolio lost money on both sides simultaneously — the worst possible outcome.

SGOV is genuinely a cash equivalent with yield. In 2022-2024, when the Fed raised rates to 4.5-5.5%, SGOV generated 4.5-5%+ returns with essentially no credit risk and near-zero duration risk. This made it superior to AGG, BND, and even many money market funds for capital preservation while rates were elevated. As rates fall, SGOV’s yield drops — it is not a long-term wealth builder, but a superior parking spot for capital you may need within a year.

The Yield Curve and What It Means for Bond Buyers

The yield curve shows interest rates across different maturities — 3-month T-bills versus 2-year notes versus 10-year notes versus 30-year bonds. In a normal environment, longer-dated bonds yield more because investors demand compensation for committing capital for longer periods.

When the yield curve inverts (short-term rates higher than long-term rates), it typically signals that bond markets expect the Fed to cut rates in the future — which means investors are pricing in lower future short rates and bidding up long-dated bonds.

The practical implications for bond buyers:

• Steep yield curve (normal): being compensated for duration; long-term bonds make more sense
• Flat yield curve: you are not being paid much extra for longer duration; SGOV or short-term bonds provide nearly the same income with far less risk
• Inverted yield curve: short-term bonds yield more than long-term; extending duration is actively punished; own short duration

In early 2024, the yield curve was deeply inverted — 3-month T-bills yielded more than 10-year Treasuries. An investor in SGOV earned more income than an investor in AGG while taking dramatically less duration risk. This is an unusual situation, but one that lasted for nearly two years. Being aware of the curve shape helps you make better fixed income decisions.

Building Your Fixed Income Allocation

The right fixed income approach depends on your specific situation:

You are building long-term wealth in a retirement account: A core bond ETF (AGG or BND) at 20-40% of your portfolio provides ballast against equity drawdowns in most (not all) market environments. Keep duration moderate; avoid TLT as a core holding.

You are near or in retirement with specific income needs: Consider a bond ladder of individual Treasuries or investment-grade corporates alongside a short-duration ETF for liquidity. The maturity guarantee of individual bonds is valuable when you have known expenses.

You want a cash equivalent yielding 4-5%: SGOV or a money market fund. Zero duration, Treasury-backed, liquid. This is not a growth investment — it is a stable income layer.

You want total return over a long horizon: Bond ETFs win on cost, diversification, and simplicity. The duration risk is real but manageable by keeping duration moderate (5-7 years), not chasing yield by extending to 17+ year duration.

For a broader portfolio construction perspective on how bonds fit into a complete investment portfolio, see What Is Asset Allocation and How to Get It Right. For bond fund options within a beginner index portfolio, see The 5 Best Index Funds for Beginners.