Every household holds currency positions. Most do not know it.
A Malaysian family with a US stock fund holds dollars. A Taiwanese family with a US-dollar life policy holds dollars. An Indonesian family planning for a child's university abroad is short dollars. A Chinese household barred from moving more than a set amount abroad each year holds a policy, not just a currency.
None of those is a decision about the exchange rate. They are decisions about a fund, a policy, a school, and the exchange rate arrives as a side effect.
A foreign asset has two returns: what it earned, and what the currency did to it. You only get to choose the first one on purpose.
Three markets, three currency moves
Malaysia, 2025. The ringgit gained about 9.7% against the US dollar by 19 December 2025, reaching about 4.05 per dollar, its strongest level since March 2021. Over the same period the local equity index rose about 1.4%. The currency was a bigger story than the stock market.
For a Malaysian holding dollar assets, the arithmetic was unkind. A 10% gain in a US fund, in dollars, becomes:
1.10 ÷ 1.0972 − 1 = +0.3% in ringgit.
A 10% gain was almost entirely absorbed by the exchange rate. The same move helped the family with a dollar tuition bill: that bill got cheaper by about 9%.
Taiwan, 2025. In early May 2025 the Taiwan dollar rose as much as 5% in a single day, its biggest intraday gain in more than 30 years, and over 8% in a month. The shock exposed an old structural fact: Taiwanese life insurers hold roughly US$780 billion of foreign assets, mostly in dollars, against liabilities in Taiwan dollars. When the local currency rises, their foreign holdings lose value at home.
The regulator, the FSC, responded with relief on how insurers account for currency gains and losses, which it estimates saves about US$2.9 billion a year in hedging costs. The exact effective date of the relief conflicts between sources.
A household with a US-dollar policy is, indirectly, in the same boat as the insurer that issued it.
Indonesia, 2025. On 29 August 2025, amid street protests and foreign net outflows from Indonesian markets, the rupiah traded at about 16,490 per dollar. A dollar-based cost is a rupiah-based risk: any further weakening raises the price of everything priced abroad.
For a family with dollar costs (education, travel, imported goods, offshore property), a weaker rupiah is a rise in the cost of living without a single price change. For a family with dollar assets, it is a gain not caused by anything in their portfolio.
China: when the currency is a quota
China is a different case. Individuals can buy up to US$50,000 of foreign currency per year through banks, and, as commonly described, that quota cannot be used to buy overseas securities or property directly. The sanctioned routes for outbound investment are the Qualified Domestic Institutional Investor (QDII) system, which allows approved institutions to invest abroad within quotas set by the regulator, and Wealth Management Connect with Hong Kong, which allows individuals up to RMB3 million.
The investment question is therefore also a permission question. The currency position a Chinese household can hold is limited by what the system lets it buy.
The finance fundamentals
Foreign return has two parts. Finance decomposes the home-currency return on a foreign asset into the local return and the currency return. They multiply, and the second is often as volatile as the first.
Hedging is not free. Covered interest rate parity says that the forward price of a currency reflects the interest-rate difference between the two. So an investor in a low-rate currency who hedges a high-rate currency's asset gives up roughly that rate gap each year, as the cost of hedging. When the dollar's rate is well above the home rate, the hedge is expensive. This is why the same hedge ratio can be right in one year and wrong in the next.
Match currencies to liabilities. Goal-based investing starts from liabilities: what you will need to spend, when, and in which currency. Assets are chosen to meet them. A dollar asset for a dollar liability needs no hedge. A dollar asset for a ringgit liability is a speculation unless you hedge it.
Currency is a source of risk, and sometimes of diversification. For an investor whose income and spending are in one currency, a foreign currency can diversify. For one whose costs are already linked to the dollar, more dollars add to a concentration. See your biggest position was never a decision.
A currency ledger
Build a table, one row per currency, with three columns, over a 10-year horizon:
| Currency | Assets you hold or will receive | Costs you will pay |
|---|---|---|
| Home currency | Salary, local property, local fixed deposits | Mortgage, living costs |
| US dollar | US funds, dollar policies, crypto priced in dollars | Tuition abroad, travel, imported goods |
| Other | Property or accounts abroad | Anything priced there |
The difference between each row's two columns is your net position in that currency. Three outcomes:
- Assets exceed costs. You are long. A weaker currency hurts, a stronger one helps.
- Costs exceed assets. You are short. The reverse.
- Roughly equal. You are naturally hedged.
Practical implications
- Convert every statement to your home currency, every quarter. A portfolio that is "up 10%" in dollars may be flat at home. The home-currency number is the real one.
- Decide the hedge ratio goal by goal. Money for a dollar tuition bill in 2031 should lean toward dollars. Money for retirement at home should lean toward the home currency. One portfolio-wide ratio hides the question.
- Price the hedge. Look at the interest-rate gap before deciding. Hedging is insurance, and the premium moves.
- Remember policies and funds are currency positions. A dollar life policy, a global fund and a dollar-denominated property all count.
- Know your constraints. In China, the annual conversion quota and the approved outbound routes shape what is possible. Check the current rules before relying on a plan.
Update, October 2026: what the following months added
Taiwan. Bloomberg reported in January 2026 that insurers had cut their hedging to the lowest level since at least 2020. In April 2026, a rating agency noted that the accounting relief smooths reported earnings but does not remove the exposure.
Indonesia. The rupiah hit a record low of about 17,706 per dollar on 20 May 2026. Bank Indonesia raised its policy rate to 5.25% the next day and to 5.50% on 9 June, and held at 5.75% on 23 September, with the rupiah at about 17,876. Against the 16,490 of 29 August 2025, the dollar became about 8% more expensive in rupiah terms in just over a year: a rise in the cost of dollar bills with no price change, and a gain for anyone holding dollar assets.
China. The QDII outbound-investment quota was increased by US$5.3 billion in March 2026, to a total of US$176.2 billion.
What we could not confirm
The body of this post reflects what was known on 30 December 2025; later developments are in the update section. Exchange-rate levels come from press and aggregator sources, several of them secondary, and the exact effective date of the Taiwanese accounting relief conflicts across reports. The description of China's foreign-exchange quota is from secondary guides and should be checked with the State Administration of Foreign Exchange. This is education, not investment advice.
Sources
- The Star, FBM KLCI extends rally on Christmas Eve, ringgit at five-year high (24 December 2025); The Edge Malaysia, Ringgit turns Asian star performer in 2025
- Taipei Times, Taiwan dollar surge and life insurers (6 May 2025); insurer FX accounting relief (25 December 2025); rating agency view (8 April 2026)
- Bloomberg, Taiwan insurers cut FX hedging to lowest since at least 2020 (27 January 2026)
- ANTARA, Bank Indonesia raises rate to defend rupiah (9 June 2026); Central Banking, Bank Indonesia decision (23 September 2026)
- Jakarta Globe and Katadata, rupiah level on 29 August 2025
- China Daily, QDII quotas (1 April 2026); PwC China, Wealth Management Connect enhancements (February 2024)