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Sometimes the most effective investment strategies are also the simplest. Rather than spending years selecting individual stocks, predicting which country will outperform or constantly adjusting a portfolio, what if you could own a substantial slice of the world's stock market through a single investment?

That's the attraction of Vanguard's FTSE Global All-Cap UCITS ETF (VALL), a relatively new ETF that has become the largest holding in my Self-Invested Personal Pension (SIPP).

For investors seeking long-term growth without unnecessary complexity, I really think it's worth a closer look.

VALL tracks the FTSE Global All Cap Index, which represents thousands of companies across developed and emerging economies.

Unlike some popular global ETFs, it includes large, medium and small companies. This means investors gain exposure not just to established multinational businesses, but also smaller companies with the potential to become tomorrow's market leaders.

As of August 2026, VALL held approximately 6,429 stocks, spanning numerous industries and countries.

It's also an accumulating ETF, meaning dividends are automatically reinvested rather than paid into your account. For long-term investors, that's particularly convenient: reinvestment happens within the fund, allowing compounding to work without additional effort.

Although VALL provides global exposure, its investments aren't distributed equally around the world. Larger stock markets naturally receive greater allocations because companies are weighted by market capitalisation.

Geographical exposure:

The United States alone represents approximately 62% of the portfolio, reflecting its enormous influence over global equity markets.

Its largest investments include Nvidia, Apple, Microsoft, Amazon, Alphabet and Taiwan Semiconductor Manufacturing Company.

Technology represents approximately 32% of the fund, followed by financials at 15% and industrials at 13%.

This highlights an important distinction: global diversification doesn't necessarily mean equal diversification.VALL remains heavily influenced by American technology companies, despite holding thousands of businesses.

Nevertheless, investors also gain exposure to markets such as Japan, India, China, Taiwan and the UK, without needing to purchase separate regional funds.

VALL has an ongoing annual fund charge of just 0.07%.

On a £10,000 investment, that's approximately £7 annually. On £100,000, it's £70.

That compares favourably with many actively managed funds charging up to 0.75% or more.

And while small differences in fees might seem insignificant initially, they become increasingly important over decades. Every pound lost to charges is money that can no longer compound.

Remember, however, that platform fees, dealing charges and trading spreads may apply separately.

My own investment strategy has two complementary approaches.

Within my Stocks and Shares ISA, I follow a five-fund strategy covering developed global equities, the S&P 500, UK equity income, global small companies and developed Asia-Pacific markets.

I've deliberately chosen these allocations to give greater weight to areas where I want additional exposure, rather than simply accepting global market weightings.

My SIPP, however, has a different emphasis.

VALL forms 80% of my SIPP, with the remaining 20% allocated to additional emerging-market and other equity exposure.

I want my pension investments to remain straightforward, globally diversified and inexpensive, with minimal maintenance over the coming decades.

My ISA provides greater control over regional and investment-style allocations. My SIPP is primarily designed to capture long-term global equity growth.

Neither approach guarantees superior returns. In fact, my five-fund ISA could underperform a single global tracker. But the combination suits how I prefer to manage my investments.

To date, my 5-fund ISA approach has achieve 14.17% annualised over 7-years, which has exceeded the FTSE Global All Cap benchmark, which is 12.87% annualised over 10-years. Past performance however, is not an indication of future performance.

Absolutely. VALL is entirely invested in equities, meaning substantial market declines are unavoidable.

Its US concentration also means a prolonged downturn in American technology stocks could weigh heavily on returns.

Furthermore, the ETF only launched in August 2026, so it has virtually no live performance history of its own, although its underlying index has a much longer history. And investors approaching retirement may want a more defensive allocation incorporating bonds or cash.

For someone beginning their investment journey, or an experienced investor who simply doesn't want the hassle of managing multiple funds, VALL offers a compelling proposition.

You get thousands of companies, broad international exposure, automatic dividend reinvestment and exceptionally low ongoing charges.

Personally, I'll continue using my five-fund ISA strategy alongside VALL as the foundation of my SIPP.

But if I wanted one straightforward equity fund to invest in consistently for the next 20 years, VALL would certainly be near the top of my list.

Sometimes successful investing isn't about finding the next winning stock. It's about owning the market, keeping costs down and giving compounding enough time to do its work.

Happy compounding!

The Compounder
Long-term investing made simple.

The Compounder is for financial education and commentary only. I am not authorised or regulated by the Financial Conduct Authority and I do not provide financial advice, investment advice, or personal recommendations. Nothing published here should be taken as a recommendation to buy, sell, hold or switch any investment, fund, pension, ISA, crypto asset or financial product. Always do your own research and consider speaking to an FCA-authorised financial adviser if you are unsure.