Should I invest in International stocks? If so, what percentage of assets should be invested internationally?

These are important questions to answer when deciding on a target asset allocation.

This is how I thought about that decision.

Should I invest in International Stocks?

Like most investing questions, there is no right or obvious answer, except after the fact. And we can rationalize any decision we might want to make…

For example:

The United States prints the world’s primary reserve currency and is the world’s largest single market. As of Dec 31, 2018, US corporations were worth 54% of the total global market cap (source, big pdf.) California by itself is the world’s 5th largest economy, and the 10 largest companies are all American. Interesting (to me), the market cap of many US corporations exceeds the market cap of every publicly traded company in many developing countries (selling toilet paper and diapers is worth more than all of the oil in Russia, for example. Kleptocracy has a price.)

(I found this on Reddit, apparently via BoA and The Economist)

What’s more, US corporations are truly global, generating 40%+ of revenue outside the US. And growing. A lot of people use iPhones outside of Kansas and South Dakota, and I occasionally enjoy a double vente Frappuccino with extra whip here in Taipei.

(source, from 2012, big pdf. Somewhat corroborated by data from 2017.)

Furthermore, as a US person who eats, sleeps, and breaths in US dollars, investing in Euros or Pounds Sterling or Yen or Dong brings currency risk. When the USD rises, the value of International investments falls and vice versa. Do you want the poor financial choices of other countries to impact your personal inflation rate?

And last but not least, the cost of International investing is higher. International funds generate more non-qualified dividends, which are taxed at higher rates, and the expense ratio on VXUS is 13 basis points higher than on VTI.

Based on all of the above, it is understandable how many notable individuals recommend a portfolio invested 100% in the United States.

“Put 10% of the cash in short-term government bonds and 90% in a very low-cost S&P 500 index fund. (I suggest Vanguard’s.)” – Warren Buffett (in his will, as a recommendation for the money left for his wife.)

“I wouldn’t invest outside the U.S. If someone wants to invest 20 percent or less of their portfolio outside the U.S., that’s fine. I wouldn’t do it, but if you want to, that’s fine.” – Jack Bogle, himself (may he rest in peace)

“Since these companies (US corporations) provide solid access to the growth of world markets, while filtering out most of the additional risk, I don’t feel the need to invest further in international specific funds.” – JL Collins, the godfather of FU money

Simple is good, simple is nice. I fully support anybody who chooses to invest 0% Internationally.

But we don’t do this.

Home Bias

“Bah, you Americans are all the same… so arrogant, thinking you are the center of the universe.” – lots of people

Touché. “Home bias” is the phrase commonly used to describe being overweight your home country in your investment portfolio.

Consider:

Anybody care for a Nespresso?

As a fan of passive index investing, we simply own the entire US stock market through index funds. Boring investing is the best investing. Wouldn’t it make a little sense to extend this philosophy to the globe?

In doing so, an investor would own about 50% US stocks and 50% non-US stocks.

Some people do just that, and I fully support anybody who chooses to invest 50% Internationally.

But we don’t do this either.

Anecdotal Evidence

Everyone has their rationalizations for a home bias. Here are some from Jack Bogle (source)

“When you look at global market capitalization it’s true that the U.S. accounts for about 48 percent and other countries 52 percent. But the top three markets outside the U.S. are the U.K., Japan and France. What’s the excitement about there? Emerging markets have great potential, but have fragile sovereigns and fragile institutions.” – Jack Bogle

“It’s hard to believe that the differences in returns (between US & International) over the long term will be huge. That’s just not what we have seen for the most part. Why take the currency risk?” – Jack Bogle

Sovereigns and institutions are important. Courts and culture that enforce contract law, low instances of corruption and bribery, transparent accounting standards, and strong shareholder rights make companies more profitable and efficient. It can be difficult to do business in countries with systemic corruption.

Our overall economic system relies on growth, doing more with less year after year. A component of economic growth comes from population growth, in large part due to immigration. Where Immigrants go, economic growth follows. (Consider: your spending is somebody else’s income.) Historically, that has been the US.

Along with strong educational institutions, this leads to strong entrepreneurial growth. Nearly half of all Fortune 100 companies were founded by 1st or 2nd generation immigrants. Some examples include Google, Intel, eBay, and Nvidia…

Many of my own work experiences also encourage a home bias…

I recall a time when I was working closely with a Japanese company. The team proposed a solution via another Japanese company (owned by an Uncle) with a cost of $200,000, a lead time of 16 weeks, and a piece cost of $1.25. We offered an alternative solution via a Taiwanese company and a Chinese tool vendor for $25,000, 3 week lead time, and piece cost of $0.25. Which option do you think they chose?

In another instance, I was supporting a project out of Korea with a target shipment date of Thanksgiving 2005. The team was still working on the project in 2008 because the corporate culture rewarded managers for finishing a project. Trying to ship a 2005 product against the competition’s 2008 product resulted in sales of 2 units, to the manager’s parents. How much does it cost to run an engineering team of 100+ people for 3 years?

I could write another 100+ examples, but Paul Midler already did that with more humor:

Are US companies perfect? Of course not. More efficient? Maybe.

Is this an irrational and emotional perspective? Most definitely.

Data

It is interesting to hear people’s reasons for why they chose a certain US/International allocation. Some think the era of US dominance is over and overweight International. Others invest only a token percentage in far off lands.

I prefer data, to counter my own anecdotal evidence.

Vanguard, the company, has a different opinion (big pdf) than their founder. It concludes, in part (emphasis mine):

In light of quantitative analysis and qualitative considerations, we have demonstrated that domestic investors should consider allocating part of their portfolios to international securities, and that a 20% allocation may be a reasonable starting point. Although finance theory dictates that an upper asset allocation limit should be based on the global market capitalization for international equities (currently approximately 58%), we have demonstrated that international allocations exceeding 40% have not historically added significant additional diversification benefits, particularly accounting for costs. For many investors, an allocation between 20% and 40% should be considered reasonable, given the historical benefits of diversification

This snippet is backed by lots of data and charts, and carefully phrased and lengthy explanations.

Literally putting their money where their mouth is, Vanguard Target Date funds invest 40% Internationally in stocks (and 30% in bonds.) Betterment seems to follow Vanguard’s lead on this. (Why Betterment has zero of our dollars.)

Another interesting (data-driven) viewpoint comes from the Bogleheads wiki, where you can find this chart:

The data shows that between 1970 and 2007, holding any International stocks resulted in a greater return than owning US stocks alone. If that isn’t an argument for diversification and rebalancing, I don’t know what is.

With allocations of 10-30%, that higher return was earned with lower volatility. That looks like the sweet spot!

We discussed this a little on the GCC forum.

But…

I enjoy using a 40-year data set to guide decisions as much as the next guy, but… why not 50 years?

And so, I reverse engineered the chart and added data from 2007-2018. US data is represented by VTI / VTSAX and International by VXUS / VGTSX (about 80/20 developed/emerging, roughly market weight.) (Data from Yahoo and this Bogleheads forum post.)

Another decade changes things quite a bit.

The original data is shown in Blue, with the extended data shown in Orange.

Between 1970 and 2007, holding any amount of International stock resulted in a greater return. Between 2007 and 2018, holding any amount of International stocks resulted in a worse return.

Which is why I get emails like this:

Email: “Like you, I have a portion of my portfolio invested in International stocks, e.g. VXUS. Over the past decade or so, my US investments (e.g. VTI) have more than doubled. The International fund is not worth much more than what I invested long ago. Are you happy with the performance of the International portion of your portfolio? I’m considering ditching it altogether.”

Me: “VXUS has tracked its target index with high correlation and low fees. It is doing exactly what it is supposed to do, perfectly. So yes, I’m extremely happy.”

PS: Please don’t chase performance or try to time the market.

Plus, with a token percentage of 10-20% International equities, volatility was lower over the entire 50-year span.

The GCC Portfolio

Long ago, I did the mental gymnastics of choosing an asset allocation. I read the opinions, looked at the data, made some spreadsheets, mixed in my personal experiences… and settled on an 80/20 US / International split.

I can balance my anecdotal evidence and the opinions of highly respected US focused investors with the logic of diversification and index fund philosophy, and then point at the historical data and pretend I was being rational about it all.

According to Personal Capital, as of mid-January 2019 our portfolio looks like this:

This was explored in much more detail here.

We have been on the path to 100% equities for some time, and recently completed our annual rebalancing to an 80/20 US/International allocation, with a roughly 75/25 Developed / Emerging split (slightly overweight emerging.

What will be the right balance of US / International going forward? Dunno. But I think our portfolio has a nice balance – too little for  Vanguard, too much for Buffett/Bogle/Collins, just right for me.

What is Your US / International Allocation? Do you have some entertaining anecdotal evidence?