If You Will Retire Abroad, the Dollar Is Not Your Risk-Free Asset
Currency exposure is normally discussed as a risk to be hedged away, and that framing is correct only if you intend to spend dollars. If the plan is to retire in Lisbon, Valencia, or Singapore, your liability is denominated in euros or Singapore dollars, and a portfolio held entirely in dollars is an unhedged bet against your own consumption basket. A 20% decline in the dollar against your destination currency is not volatility for you. It is a permanent 20% cut in your standard of living, arriving at the exact moment you no longer have income to offset it.
Express this in the fixed-income sleeve, not the equity sleeve. Equity returns are driven by real business results over the horizons that matter, and currency effects on a global equity book substantially wash out across decades. Bonds and cash are different: their entire job is funding near-term spending with certainty, and certainty is denominated in something. A retiree in Portugal holding a Treasury ladder has a portfolio that is precisely matched to somebody else’s grocery bill.
Two practical constraints. First, move gradually rather than converting a lump sum on the day you land — shifting a slice each year over the run-up to the move is not an FX forecast, it is variance reduction on the conversion date, which is the one risk you can eliminate for free. Second, and this is where Americans get hurt, you cannot simply buy the local bond fund your new adviser recommends: a non-US-domiciled fund is a PFIC (section “Foreign Mutual Funds and the PFIC Tax Minefield”), and the rule from earlier in this section still binds — US-domiciled wrappers only. The compliant routes are US-listed foreign-bond ETFs in hedged and unhedged share classes, individual foreign sovereign bonds, and foreign-currency deposits at a broker supporting multicurrency accounts. Note that gain on those deposits is ordinary income under IRC §988, “Treatment of certain foreign currency transactions”, not capital gain, with only a $200 de minimis exclusion for personal transactions under IRC §988(e).
Do this once relocation is a decision rather than a daydream. Hedging a move you may never make is just tracking error you pay for annually, and if there is a real chance you return to the US, the matched position is a partial one.