Diversifying beyond employer stock and home-country bias
The two most common concentrations for Swiss expats are employer stock (RSUs/ESPP) and the home-country index. A robust plan caps single-employer stock at 5-10% of net worth, diversifies the equity sleeve into a global UCITS index, and matches currency exposure broadly to where future spending will happen.
Overview
Diversification is not about owning many tickers - it is about avoiding correlated risk. Owning Roche, Novartis and Nestlé still leaves you 80% in CHF, large-cap defensive equity. Owning your employer plus its industry peers leaves you triply exposed when the sector turns.
Reducing concentration risk
- 1
Map your real exposures
Not by account, but by underlying: total in employer stock (including unvested RSUs and ESPP), total by sector, by country of revenue, by currency, by asset class. Most expats discover the picture is far more concentrated than expected.
- 2
Cap employer stock
Set a hard rule (e.g. employer stock + vested RSUs <= 10% of net worth). Sell on vest, accept the tax, redeploy into global ETFs. The cost of avoiding this discipline is a 30-70% personal drawdown when your sector cracks.
- 3
Cut home-country bias
Most expats hold an over-weight in their home market by habit, not analysis. A globally market-cap-weighted core (USA ~60%, Europe ~15%, Japan ~6%, EM ~10%, CH ~3% as of 2025) is a better default than memory of home indices.
- 4
Balance currency exposure
Long-term Swiss residents typically aim for ~25-50% CHF or CHF-hedged exposure (cash, Swiss equity, hedged bonds), with the rest unhedged for diversification. Match heavy near-term CHF obligations (mortgage, school) with CHF assets.
- 5
Diversify the bond sleeve too
If you hold bonds, a global-aggregate ETF (CHF-hedged) beats stacking Swiss government bonds at near-zero yield. Treat bonds as ballast, not return-engine.
- 6
Review yearly, not weekly
Once the structure is right, review allocation annually (calendar reminder) and rebalance only when drift exceeds 5 percentage points. Constant tinkering is the main driver of investor underperformance.
Frequently asked questions
How much of my portfolio should be in my employer's stock?+
Most planners cap single-stock concentration at 5-10% of net worth, including unvested RSUs at expected value. Beyond that, your personal balance sheet swings with one company's news flow.
What is home-country bias?+
The tendency to over-weight investments in your country of origin or current residence. Common but undiversified - the Swiss market is about 3% of global market cap; the UK around 4%; Germany about 2% as of 2025.
Should I hedge currency risk?+
Equity allocations are generally left unhedged (currency is part of the diversification). Bond allocations are usually CHF-hedged for a Swiss resident - otherwise bond returns are dominated by FX noise.
Is gold a diversifier?+
Historically a partial inflation and crisis hedge. A small allocation (5-10%) via a low-cost physical-gold ETF can reduce portfolio drawdowns, but it generates no income and has long flat periods. Optional, not essential.