The mulligan rule of investmentBeware of performance figures

Most funds fail to beat the index. But a lot of funds say they have. There is a

simple explanation

GOLFERS are familiar with the concept of a mulligan the chance to retake a

shot. Give an averagely talented player enough mulligans and he or she will get

one close to the hole. And a version of the mulligan exists in fund management

too.

Readers will be familiar from past blog posts with the idea that actively

managed funds cannot be relied upon to beat the index. Many of these studies

are conducted in the US market, which is probably the most efficient (and thus

hardest to beat) in the world. But the same is true in Europe.

Figures from S&P Dow Jones Indices show that, over the ten years to December

2017, less than 15% of euro-denominated European equity funds beat their

benchmark; for emerging market funds, it was less than 3%; and global funds,

under 2%. For sterling-denominated funds, less than a quarter of both European

and UK equity funds beat the index.

But I took a closer look at the UK market, because of an intriguing detail. The

annualised return of UK equity funds was 7.27%; the index return (S&P s broad

market index) was 6.48%. So how come the average fund beat the market when, the

figures also show, most funds did not beat the market?

This is where the mulligan rule comes in. The ten-year performance returns are

for funds that have survived ten years. But most funds did not manage that;

only 43% of UK equity funds that were being operated at the start of 2008 were

still going at the end of 2017. The ones that closed were, inevitably, ones

that underperformed. If a fund survives for ten years, the chances are that it

had a pretty good record. That is why managers can advertise funds with strong

performance; if they have a bad fund, they can just close it and start again.

Ah, some investment advisers might say (indeed, one did tweet this to me) all

passive managers will underperform. But I looked at the Legal and General UK

index tracker, which is one of the largest, if not the cheapest. Its compound

ten-year return was 6.4% (it tracks the All-Share not S&P s index). It will

never be the best performer in the sector but clients can be sure it won t be

the worst either.

So beware of performance numbers. Another problem occurs with those funds that

do become stars (think Bill Miller at Legg Mason). They start small and then

their good performance generates investor inflows. Sometimes, it is harder to

outperform with a big fund than with a small one. But traditional performance

figures look at the return of the fund, not that of the average investor. Say

that the fund had $20m in the first year, and returned 20%, generating inflows

of $100m at the start of the second year. In the second year, the fund has

$124m under management and earns 5%. The fund will have a two year average

return of 11.8%. But most investors will have only earned 5% since they only

joined for the second year

Use a dollar-weighted return and the average investor can lag 2.5 percentage

points behind the average fund; that is what happened in the ten years to

end-2013, according to Morningstar. There is a reason why its is easier to get

rich investing other people s money than to get rich investing your own.