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Interest rates change, but the role of bonds doesn't

01 June 2017 | Portfolio construction

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Commentary by Vanguard Chairman and CEO Bill McNabb.

Bill McNabb

For many people, including me, falling interest rates have been the general trend in the bond market throughout our working lives. At the beginning of 1983, the year I graduated from business school, the yield of the benchmark 10-year United States Treasury note stood at more than 10%. It was less than 2.5% at the beginning of 2017. 

Because bond prices move in the opposite direction from rates, my career happens to have overlapped with the greatest bull market for bonds in history.

It appears that may be changing. And, of course, there's no shortage of advice about how to prepare for the shift.

Rates may be headed higher (really)

This bond bull market has reminded us time and again just how hard it is to predict when rates will rise or fall and by how much.

If you follow bonds, you might recall the markets bracing for a sustained rate increase back in 2010 as the global economy pulled out of recession, or again in 2013 when the US Federal Reserve said it would start tapering its bond purchases, or again at the end of 2015 when the Fed raised short-term rates for the first time in almost a decade. And yet, prognostications notwithstanding, interest rates remained anchored near historical lows.

That said, rates seem to be on an upswing. With economic activity picking up, wages starting to move higher and inflation coming off recent lows, the Fed has nudged short-term rates higher twice in recent months and has signaled that further gradual increases are likely through 2018. The perceived pro-growth stance of the new US administration also has played a role in framing a case for higher rates.

Short-term pain, longer-term gain

Bond investors are understandably concerned. If interest rates shoot up, the market value of bonds will drop sharply, with prices falling to bring yields in line with the new, prevailing higher rates. That's the potential short-term pain. But long-term investors should actually want rates to go up. If you like bonds that pay 2%, you should love bonds that pay 4%, right?

There's a simple – though imperfect – rule of thumb that helps make this point clear.

If the time frame of your investing goal exceeds the time frame of your bond portfolio (a medium-term goal matched with short-term bonds, or a long-term goal paired with bonds not quite as long-term), rising rates will work out in your favour, maybe decidedly so.

Think of it this way: If you have a big cash need in the near future – say, university fees coming due in a few years – and you own bonds that are long-term in nature, this time frame mismatch could spell trouble if rates rise sharply; you'd be selling bonds that would be worth less. But if you're saving to retire 10 or 15 years down the road and rates are steadily rising, over time you'll be earning higher and higher yields. Josh Barrickman, our head of fixed income indexing for the Americas, calls it "the virtuous cycle of compounding interest at a higher rate."

The bottom line is, you can end up better off than if rates hadn't risen because you're earning more income, which over time more than washes away any price hit.

Beware of short-sighted, short-term moves

This logic can be difficult to grasp, tempting anxious bond investors to make drastic shifts to lessen the immediate pain of rising rates. Unfortunately, such moves can backfire.

Taking shelter in short-term bonds, for example, might seem like a good idea. Their prices generally hold up better than those of longer-term bonds in a rising-rate environment. But they also offer less income.

For example, when global markets started worrying about rising US rates in 2010, moving into short-term securities – and staying there – would have been costly. Through 2016, those securities returned roughly half of what the broad US bond market did.

Favouring high-yield bonds is another tack some investors take, expecting higher income to help cushion price declines. High-yield securities, however, typically perform best when equities are rising, making them unlikely to zig when shares zag.

We saw clear evidence of the correlation between equities and high-yield bonds in the frantic markets following the United Kingdom's vote to leave the European Union last year. From 23 June to 27 June, both equities and high-yield bonds lost ground. The broad bond market, meanwhile, climbed as investors sought a safe haven.

A portfolio is more than the sum of its parts

Different assets have different roles to play in a balanced and diversified portfolio. Equities are valuable because they can produce higher returns over time, while bonds can provide a crucial counterweight to the volatility of equities.

Perhaps the most important thing to keep in mind about bonds is that, although their prices can fluctuate, they remain "fixed income" securities. Barring default, you can be certain of getting income until the bonds mature. It's that income that drives returns for patient bond investors who resist the urge to jump in and out of the market.

A lot has changed since I first started following the bond market, but the important role that bonds can play in a balanced and diversified portfolio hasn't.

Important information:

This article is designed for use by, and is directed only at, persons resident in the UK.

This article was produced by The Vanguard Group, Inc. It is for educational purposes only and is not a recommendation or solicitation to buy or sell investments.

The value of investments, and the income from them, may fall or rise and investors may get back less than they invested. Any projections should be regarded as hypothetical in nature and do not reflect or guarantee future results.

The opinions expressed in this article are those of the individual author and may not be representative of Vanguard Asset Management, Ltd.

Vanguard Asset Management, Ltd. only gives information on products and services and does not give investment advice based on individual circumstances. If you have any questions related to your investment decision or the suitability or appropriateness for you of product[s] described in this document, please contact your financial adviser.

Issued by Vanguard Asset Management, Ltd, which is authorised and regulated in the UK by the Financial Conduct Authority.

VAM-2017-05-10-4678

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