What the Roam slot does
The Roam slot holds one international ETF — Vanguard Total International Stock or iShares Core MSCI Total International. Investors who build portfolios out of S&P 500 and Nasdaq-100 funds alone are making a specific bet that American companies will continue to dominate global markets indefinitely.
The United States accounts for roughly 60% of global equity market capitalization. The remaining 40% spans developed Europe, Japan, and emerging markets from Brazil to Taiwan — countries with their own growth engines, currencies, and economic cycles that don't correlate perfectly with US returns.
Vanguard Total International Stock ETF
VXUS holds approximately 5,000 stocks across developed and emerging markets outside the United States. The fund charges 0.07% in annual fees — cheaper than most individual international funds when you build this allocation yourself. It tracks the FTSE Global All Cap ex US Index, which means it doesn't pick winners or losers among foreign companies.
Full VXUS analysis →Why VXUS wins this slot
IXUS holds nearly identical securities with virtually the same returns and tracking error — so nearly indistinguishable in practice, though VXUS carries slightly more liquidity and marginally lower costs at 0.07% versus IXUS's 0.08%.
The real advantage comes over running separate developed- and emerging-market funds. VXUS covers both in one ticker: no need to rebalance between VEA (developed markets) and VWO or IEMG (emerging markets). One fund, one expense ratio, all non-US equity exposure.
The tradeoff is concentration risk concentrated on a single sponsor's implementation. Vanguard has been running international index funds for decades with solid execution, but the simplicity of a single-fund approach carries its own risks if anything goes wrong with the fund structure itself — though that risk applies equally to IXUS and any other total-international option.
The runners-up
A few alternatives worth knowing about, though most investors should start with VXUS.
How much Roam belongs in your Frame
The Five Fund Frame suggests allocation targets for the Roam slot based on life stage. These are starting points, not prescriptions.
| Life stage | Park | Earn | Build | Roam | Dare |
|---|---|---|---|---|---|
| 20s | 5% | 10% | 55% | 20% | 10% |
| 30s | 10% | 15% | 45% | 20% | 10% |
| 40s | 10% | 25% | 35% | 20% | 10% |
| 50s | 15% | 30% | 30% | 20% | 5% |
| 60s+ | 20% | 40% | 20% | 15% | 5% |
Starting points. Adjust to your income, risk tolerance, and timeline.
Twenty percent might feel like a lot if you're used to seeing 100% US portfolios at conferences. It's also not much when compounding is still working hard on the early side of life. The specific percentage matters less than having some non-US exposure from the beginning, which happens automatically once the Five Fund Frame is set up.
Common questions about Roam funds
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