Funds & Trackers
Familiarity feels like information
Investors consistently favour what they recognise, and recognition carries no information about future returns.
What follows is an argument about familiarity in investment choices, and about where the received version of it stops being true.
The argument in brief
- Recognition raises comfort and perceived safety without changing risk.
- The effect shows up in home bias, employer holdings and well-known brands.
- Comfort with a holding is not evidence about the holding.
Recognition is doing the work
Repeated exposure to a name makes people rate it more favourably, an effect that has been demonstrated across many domains and is not specific to finance. In investing it shows up as a preference for companies you buy from, employers you know and markets you live in. The comfort is genuine and the information content is nil, because familiarity reflects your life rather than the asset.
Every other investor in your country is being nudged in the same direction, which is why the effect aggregates.
Why familiar feels safer
Knowing a company as a customer creates a sense of understanding its business, which is a much weaker form of knowledge than it feels like. Being able to picture the product does not tell you what is priced in or how the business earns money.
The confidence produced is real and unearned, and it tends to result in larger positions. Larger positions in things you feel you understand is exactly how undiversified portfolios get built by careful people.
The concentration it produces
Familiarity bias concentrates portfolios in a domestic market that is only a portion of global markets, often a small one. It also encourages holding an employer shares alongside an income and sometimes a pension from the same company. These concentrations are rarely chosen deliberately; they accumulate because each individual decision felt comfortable.
On an ordinary week, comfort as a selection criterion produces a portfolio correlated with your own circumstances.
Unfamiliar is not the same as risky
Markets you know nothing about feel dangerous, and that feeling reflects your knowledge rather than their volatility. A broad global fund includes many of them, which is diversification working rather than risk being taken. The correct response to unfamiliarity is generally to hold a diversified share of it, not to avoid it.
Avoiding what you cannot picture is how home bias reproduces itself.
Correcting for it
Look at your holdings as percentages by country and by employer exposure, which makes accumulated familiarity visible. Compare that to a global market weighting and treat any large gap as a deliberate decision requiring a reason. Currency, spending location and local tax treatment are legitimate reasons for some home tilt and differ by country.
"It feels safer" is not one of them, and naming it honestly is usually enough to change it.
Some of this will suit you and some will not, and that is the point.
A caveat about the opposite error
Correcting familiarity bias does not mean seeking out the obscure, which introduces cost and complexity without benefit. The target is roughly market-like exposure with deliberate, stated deviations. Very unfamiliar products can also carry genuine structural risks worth understanding before holding.
The principle is that exposure should be decided by the plan rather than by what you happen to recognise.
The takeaway
Recognition is a fact about you, not about the asset. Check what it has quietly concentrated.
Pick the one that costs you least, and let the rest wait.
Questions readers ask
Is it wrong to invest in companies I know?
Knowing a product tells you little about a share price. If a familiar company is a large position, that should be a deliberate decision with a stated reason.
How much home bias is reasonable?
Some is defensible because you spend in that currency, but the appropriate amount depends on your country and circumstances. Decide the figure rather than letting it accumulate.
