Familiar Is Not the Same as Safe
Many portfolios are not invested in a market. They are invested in the familiar corner of it.
There are companies whose products are part of daily life, whose buildings sit in the financial district, whose stocks have been in the family for years. The same names that come up in almost every conversation. They appear in many portfolios in Singapore. But they cluster in a narrow slice of the market.
In 2025, retail investors poured S$2.62 billion into Singapore stocks, a five-year high. That number looks like strong conviction in the home market.
But SGX’s own data tells a more specific story. According to SGX’s January 2026 market update, the three local banks chalked up a combined net retail inflow of S$3.88 billion. Excluding those three banks, the rest of the Singapore stock market saw S$1.26 billion in net retail outflows over the same period.
The Singapore Exchange lists more than 600 companies. Retail capital flowed into a fraction of them.
This is not home market investing.
It is familiarity investing. Buying the names that feel known and leaving everything else untouched.
Economists have a name for this tendency. Kenneth French of Dartmouth College and James Poterba of MIT documented it in 1991. They found that investors in the US, Japan, and the UK held over 90% of their wealth in domestic stocks, far more than global diversification would suggest. They called it home country bias.
The pattern shows up across markets. In Australia, investors hold roughly 44% of their equity portfolios in domestic stocks, according to research by State Street Global Advisors, despite Australia representing less than 4% of global market capitalisation. The names that dominate those portfolios were the four major banks and a handful of mining companies. Even though these were different markets, the same instinct prevails. When the field of choices is wide, investors narrow to what they already know.
Singapore’s version runs differently from the standard story. The issue is not that investors here hold too much Singapore. It is that they hold the same small cluster within Singapore and treat that as knowing their home market.
Familiarity is doing the work, not analysis.
A company whose service is on your phone, or a trust that owns the mall near the office. These feel safe and familiar.
But recognising a company is different from understanding it. Using a product is different from knowing the business. Familiarity creates the feeling of knowledge without the substance of it.
Psychologist Robert Zajonc identified this in 1968. He called it the mere exposure effect. The more often people encounter something, the more they tend to like and trust it. Not because they learned anything new. Because it stopped feeling strange.
Portfolios often reflect what investors have been exposed to. Not necessarily what makes the most sense.
Brad Barber and Terrance Odean at UC Berkeley’s Haas School of Business took this further in their 2008 research on individual investor behaviour. Retail investors, they found, are drawn to attention-grabbing stocks. These include companies in the news, names with heavy trading volume, or stocks that come up during dinner conversations.
Thousands of potential investments exist. Most investors cannot evaluate all of them. So the field narrows to what is already visible.
The stocks that dominate the newsfeed, the brokerage app’s most-traded list, the dinner table conversation. Those are the ones that get bought. Visibility shapes decisions as if it were value. Often it is not.
A second pattern layers on top of this. Many investors concentrate in the industry they work in. The person in finance buys financial stocks. The engineer buys industrial names. The logic sounds reasonable. Familiar sector, familiar news, familiar business models.
But working inside an industry is not the same as having an investment edge in it. Most professionals understand their employer and perhaps a few direct competitors. They rarely have a complete view of every listed company in their sector, or how those companies are priced against peers in other markets.
Proximity creates the feeling of expertise. That feeling is not always accurate.
Currency fear narrows portfolios in a different way.
Many investors stick to local names to avoid foreign exchange risk. If the Singapore dollar strengthens, overseas returns shrink in SGD terms even if the underlying investment performed well. That concern is legitimate.
But many of the largest locally listed stocks are not purely Singapore businesses. They derive substantial revenue from across the region and beyond. The currency exposure is already present inside those holdings. Just less visible because the share price is quoted in Singapore dollars.
Investors often avoid the foreign exchange risk they can see while ignoring the same risk they cannot.
None of this means familiar holdings are wrong. Some of the most recognisable names on the exchange are strong businesses with long records of profitability.
The question is whether they were chosen because the fundamentals justified it, or because they were familiar.
Three questions worth testing against any portfolio.
Would the same stocks make the cut if they were unfamiliar names with the same fundamentals?
Are there parts of the home market that have never been examined, simply because they feel less known? Not riskier. Just less familiar. There is a difference.
Does currency risk explain the absence of overseas investments, or does the same exposure already sit inside local holdings unexamined?
The 2025 SGX data shows record retail inflows into Singapore stocks. The flows were heavily concentrated in the same three names. The rest of the market was net sold by S$1.26 billion.
That is not conviction in the home market. That is familiarity mistaken for conviction.
A portfolio built on the familiar is not the same as a portfolio built on understanding.
The familiar names got many investors to where they are. They may not be the ones that take them further.
This article is for educational purposes only and does not constitute financial advice. Please consult a qualified professional before making investment decisions.