Yield or Total Return: Measuring What You Earn

Yield and total return measure two different things, and mixing them up is one of the easiest ways to misjudge an investment. Yield is the income an investment pays, expressed as a percentage of its price¹. Total return is what you actually earned: the income plus or minus the change in the price of the investment itself².

That distinction matters most when income looks healthy but the value is falling. A bond can pay a steady coupon while its market price drops, leaving you with less than you started with even though the yield on the page looked attractive. A fund can report a positive total return in a year when its yield was modest, because the underlying holdings rose in value.

The two figures are not rivals. Yield answers "what income is this paying right now?" Total return answers "what did I make or lose overall?" For anyone drawing an income from investments, or comparing two funds, knowing which number you are looking at is the difference between a fair comparison and a misleading one.

Yield and total return: what each one measures

Yield is another word for the income paid by an investment, expressed as a percentage of its price¹. When a fund pays out income, that income is expressed as a yield: the amount paid as a percentage of the unit price of a fund, bond or share². The idea is simple. If a holding costs £100 and pays £5 a year, the yield is 5%.

Total return is broader. It counts the income and the change in the price of the investment together. Investment trust performance figures are almost always given on a total return basis, which means any dividends received are considered to have been reinvested⁴. That convention exists so that two funds can be compared fairly: one that pays out all its income and one that reinvests it would otherwise look different even if the underlying portfolios performed identically.

Return on investment, or ROI, is a related measure. Expressed as a percentage, ROI measures the profit generated by an investment relative to its cost⁶. If you invest £1,000 into an asset and the value grows to £1,200 after one year, your ROI is 20% for that year⁶. That figure captures the whole gain, not just the income, which is the same principle behind total return.

The practical difference shows up in how each number behaves. Yield is a snapshot of income against price at a moment in time. Total return is a record of what happened over a period. A fund's yield can stay steady while its total return swings between positive and negative years, because the price component does the moving.

Yield shows income, not the whole gain or loss

The income or running yield, sometimes called the flat yield, does not take into account any profit or loss made by holding the bond to redemption and simply assumes that the investor will be able to sell the bond at the same price they purchased it for⁷. That assumption is the weak point. If the price has fallen since you bought, the running yield flatters the position: it counts the income and ignores the loss.

This is why a yield figure on its own is a partial answer. It tells you what the investment is paying now, relative to what it costs now. It does not tell you whether you paid more or less than that for it, or what will happen to the price before you sell.

Fund providers are explicit about the limits. The distribution yield, underlying yield and yield to worst are not indicators of the future performance of the fund⁵. Yields are variable and not a reliable guide to the income you will get in future⁸. Those warnings exist because income payments can be cut, and because the price component of total return is unpredictable.

For anyone relying on investment income to cover regular spending, the distinction has a practical edge. Drawdown, for example, can provide a regular income by reinvesting in funds designed for that purpose, but the income is not guaranteed and varies with fund performance⁹. A yield quoted today is not a promise of the same payment next year.

Total return: income plus the change in price

Total return adds the two components together. For an investment company, the figure comes in two versions. Share price total return is the performance of the company's shares, the return investors actually receive¹⁰. NAV total return is the performance of the underlying portfolio, and it does not take into account any discount or premium at which the shares may have traded⁴. The gap between the two is the effect of the market's pricing of the shares themselves, separate from how the portfolio performed.

That split matters when you are judging a manager. If the portfolio return is strong but the share price return is weak, the market has re-rated the shares downwards, perhaps because sentiment towards the sector has changed. Neither figure is wrong; they answer different questions.

For bonds, the equivalent of total return is yield to maturity, calculated to measure the total return on a bond when it is bought, assuming it is held to maturity¹¹. It is the standard calculation employed by market professionals, also known as the redemption yield⁷. Where running yield ignores the price you paid and the price you will get back, yield to maturity folds both into a single figure.

The general risk warning applies to all of these measures. As with any investment, the value can go down as well as up so you might get back less than you invest¹². A total return figure for a past period is a record, not a forecast.

Bond yields: why the price you pay changes the yield

A bond's price acts in the opposite way to its yield. If the price goes up, the yield goes down and vice versa³. The price of bonds is inversely correlated with the yield: if one moves up, the other moves down¹³. This is the single most useful relationship to understand about fixed income.

The arithmetic behind it is straightforward. Bond yields are determined by dividing the coupon by the bond's market price¹⁴. The coupon is fixed when the bond is issued, so the only thing that can change is the price. If you buy a bond at a market price of £80 and the £1.50 income you receive that year is 1.9% of what you paid, the yield is higher than it would be at a price of £100¹⁵. The higher the value of a bond, the lower the yield, and vice versa¹⁴.

What moves the price? There are two main variables affecting the price of bonds, the first being interest rates and the second the perceived credit quality or risk of default for the bond⁷. Typically, when interest rates are low, bond prices are high and vice versa³. If interest rates rise, so will government bond yields, which pushes down prices¹³. The prices of bonds also tend to go down when inflation rises and up when inflation is low³.

Credit quality works the same way. If an issuer is downgraded, it will have to offer a higher yield to entice buyers and the value of existing bonds will fall¹³. Bond prices and yields are affected by credit ratings, interest rates, market conditions and time until maturity, known as duration¹³. The yield is based on the current price of the bond, its regular interest payment, how long until it reaches maturity, and the type of bond³.

Dividend yield on shares and equity funds

Dividend yield is the annual dividends expressed as a percentage of the current share price¹⁶. It is the equity equivalent of a bond's running yield, and it carries the same limitation: it describes income relative to today's price, not the return you will earn.

How the income reaches you depends on the share class you hold. Acc, short for accumulation, is for reinvestment, while Inc, short for income, and Dis, short for distribution, pay dividends out to you¹⁷. Two investors in the same fund can therefore have very different experiences of "income" from it, depending on which class they chose.

Tax treatment differs by the type of holding. If you choose funds that invest in equities, then the income you receive will count as dividend income, which is taxed differently¹⁸. That is a reason to check what a fund actually holds before assuming its income will be treated like interest.

Equity income also carries market risk. The success of your investments will be dependent on the market, and, as with all investments, there is no guarantee you will get your money back¹⁹. A dividend can be cut or suspended, and the share price can fall at the same time, which is the scenario where a healthy-looking yield and a negative total return appear together.

High yield or steady growth: how each one behaves

Higher yields generally come with higher risk, and the sources are consistent about why. Non-investment grade bonds tend to offer a higher yield, and with the greater risk comes the potential for greater reward¹³. Corporate bonds generally offer a higher yield than government bonds as companies have a higher chance of defaulting¹³. While yield rates on corporate bonds do fluctuate, they are generally more lucrative than government-issued bonds such as gilts¹¹.

The flip side is that safety pays less. Gilts usually offer lower yields than other bonds because they are so low-risk¹⁵. The yield on corporate bonds will normally be greater than that available on bank debt²⁰.

Across asset classes, the pattern holds. Bonds typically produce lower returns over a longer period than shares, but they are generally less volatile²¹. Returns from property are generally higher than bonds but lower than shares²¹. A portfolio with a greater proportion of bonds and cash will be lower risk, but leave your money vulnerable to being eroded by inflation²².

The high-yield bond market itself has grown. High-yield bonds are fixed rate, typically with a maturity at origination of 5 to 10 years, and the market has grown 1.3 times since 2015²⁰. That growth reflects demand for income, but it does not change the underlying trade-off: the extra yield is compensation for the extra chance the borrower does not pay.

For anyone weighing income against growth, the honest framing is that these are different risk positions, not better and worse versions of the same thing. A higher yield is a higher promised income, and a promise from a weaker borrower.

Comparing investments on a like-for-like basis

Charges are the quiet variable in any comparison, and they show up in total return rather than yield. £10,000 invested for ten years at 6% a year would be worth £17,081 with charges of 0.5% a year, but £16,289 with charges of 1% a year, a difference of £792⁴. The same figures appear across the investment company guidance: with charges of 1% a year, the return goes down to £16,289, a difference of £792¹⁰.

Small differences in ongoing charges compound. A fund costing 0.1% and a fund costing 1%, both growing at 5% a year, would leave £1,275 and £1,214 respectively after five years on a £1,000 investment, a gap of £61¹⁷. Neither figure is dramatic in isolation, but the direction is always the same.

When you compare two funds, check that the performance figures use the same basis. Investment trust figures are almost always given on a total return basis, with dividends considered reinvested⁴. If one fund's figure includes reinvested income and another's does not, the comparison is meaningless.

There is also a regulatory definition worth knowing, because it appears in documents you may be sent. A reduction in yield is the difference between the projected return you were given when you bought your plan and the amount it is worth after costs²³. Under the rules, reduction in yield is calculated as the intermediate rate of return less the annual rate of return required to achieve the same projection value if charges are left out of account²⁴. Where contributions are invested in more than one fund, or made by an initial lump sum plus regular contributions, the reduction in yield must be calculated separately for each fund or for the single contribution and the regular contributions, and presented on that basis²⁴.

Where the numbers come from and what protects you

Yield and total return figures are published by fund managers and platforms in factsheets and key information documents, and the conventions behind them are set out in the rules that govern how performance is presented. The reduction in yield calculation is one example of a figure with a defined method behind it²⁴.

If a figure you were given turns out to have been misleading, the Financial Ombudsman Service can look at complaints about investments, including savings endowments²³. The ombudsman's definition of reduction in yield is the same one used in the rules, which means a complaint about a projected return that did not materialise can be assessed against a defined standard.

For pension savings, the Pension Protection Fund is funded by investment returns on assets it holds, among other sources²⁵. That is a reminder that even protection schemes depend on investment outcomes, and it is not a substitute for understanding what you hold.

Free, impartial help is available. MoneyHelper offers guidance on investing and pensions, and the Financial Ombudsman Service handles complaints that a firm has not resolved. If you are comparing income options, the key questions are what the yield is measured against, whether the performance figure includes reinvested income, and what charges have already been deducted.