The truth behind the New Taiwan Dollar breaking the 30 mark: the threefold test facing the USD/TWD exchange rate

From Panic to Celebration: A 30-Day Dramatic Turnaround

A month ago, the market was still worried about the risk of the New Taiwan Dollar breaking through 34, or even 35 yuan. Now, it has witnessed a historic reversal. According to market data, in just two trading days in early May, the USD/TWD exchange rate experienced a rare rapid adjustment spanning decades — the TWD appreciated by over 5% in a single day, setting a 40-year record for the largest gain, with the intraday rate approaching the critical psychological threshold of 29.59 yuan.

This wave of appreciation is not an isolated phenomenon. Observing the overall performance in Asia, the Singapore dollar rose 1.41%, the Japanese yen gained 1.5%, and the Korean won surged 3.8%. However, the intensity of TWD appreciation clearly surpasses that of its peers. In the short term, it has appreciated by over 9%, not only breaking multiple historical records but also triggering the third-largest trading volume in the foreign exchange market in history.

To understand the root of this reversal, we must revisit the policy background at that time. The U.S. government’s decision to delay the implementation of tariffs by 90 days instantly sparked two major market expectations: a short-term positive impact on Taiwan’s exports due to a global procurement wave; and international organizations raising Taiwan’s economic growth forecasts. These signals prompted large inflows of foreign capital, becoming the primary driver behind the USD/TWD upward trend.

Central Bank Policy Dilemma: Caught at the Crossroads of US-China Trade Negotiations

On the surface, the appreciation of the TWD symbolizes increased economic strength. But a deeper analysis reveals that Taiwan’s central bank is actually caught in an unprecedented dilemma.

On May 2, the central bank’s official statement deliberately avoided addressing the most pressing issue — whether the US-Taiwan negotiations involve currency clauses. This is no coincidence. The Trump administration’s “Fair Reciprocity Plan” explicitly listed “currency intervention” as a key review point, making it difficult for the central bank to adopt the strong intervention measures it previously used.

Data underscores the seriousness of potential risks: Taiwan’s trade surplus in the first quarter reached $23.57 billion (up 23% year-on-year), with the US trade surplus soaring 134% to $22.09 billion. If the central bank loses its intervention capability, the TWD will face enormous upward pressure. UBS’s latest research warns that if foreign exchange hedging/deposits return to trend levels, it could trigger about $100 billion in dollar selling pressure — equivalent to 14% of Taiwan’s GDP — a potential risk that must not be underestimated.

Structural Vulnerabilities in the Financial System: Insurance Hedging Operations Amplify Volatility

UBS’s in-depth analysis reveals the true drivers behind the 5% single-day surge. Besides market sentiment, the large-scale foreign exchange hedging operations by Taiwan’s insurance industry and the concentrated unwinding of corporate TWD financing arbitrage jointly catalyzed this movement.

Taiwan’s life insurance industry holds overseas assets totaling up to $1.7 trillion (mainly U.S. Treasuries), yet has long lacked sufficient currency hedging arrangements. This was not an issue in the past because the central bank could effectively suppress sharp TWD appreciation. But now, the situation has changed. The central bank must avoid accusations of currency manipulation while preventing systemic risks in the financial system. This dilemma exposes a deep structural fragility in Taiwan’s financial framework.

According to reports from UK financial media, the main force behind this appreciation wave is the panic-driven locking of huge dollar assets by life insurers. When signals of a correction in USD/TWD emerge, insurance companies and exporters may further increase their hedging ratios, creating a vicious cycle. The central bank governor subsequently denied these allegations, but market doubts remain.

Rational Assessment of USD/TWD Exchange Rate: Valuation Models and Appreciation Potential

So, how high could the TWD still go? The industry consensus is that the likelihood of reaching 28 per USD is minimal, but the appreciation momentum persists.

A key tool for assessing exchange rate rationality is the BIS’s real effective exchange rate index (REER). With 100 as the equilibrium value, data shows:

The USD index is approximately 113, indicating a significant “overvaluation”; the TWD index remains around 96, in a “reasonably undervalued” range. In comparison, the JPY and KRW indices are only 73 and 89, respectively, highlighting more pronounced undervaluation among major Asian export currencies.

Looking over a nearly one-month period, comparing the abnormal volatility with the cumulative gains since the beginning of the year, we find that the appreciation of the TWD aligns closely with regional peers: TWD +8.74%, JPY +8.47%, KRW +7.17%. From a long-term perspective, the TWD’s trend reflects the overall Asian foreign exchange revaluation process, not Taiwan’s unique phenomenon.

UBS’s valuation model indicates that the TWD has shifted from moderate undervaluation to a fair value exceeding it by 2.7 standard deviations, reflecting the strongest appreciation expectations in the FX derivatives market in five years. Historical experience suggests that such large single-day increases are unlikely to immediately reverse. However, UBS anticipates that when the trade-weighted index of the TWD rises another 3% (approaching the central bank’s tolerance limit), official intervention may intensify to smooth out volatility.

A Decade of Exchange Rate Review: Taiwan Dollar’s Relative Stability

Looking back over the past decade (October 2014 to October 2024), the USD/TWD exchange rate has fluctuated between 27 and 34 yuan, with a volatility of about 23%, making it relatively stable among global currencies. In contrast, the Japanese yen’s fluctuation reaches 50% (ranging from 99 to 161 per USD), nearly twice that of the TWD.

The movement of the Taiwan dollar is not primarily determined by the Taiwan central bank but mainly depends on the policies of the U.S. Federal Reserve. During the Chinese stock market crash and European debt crisis from 2015 to 2018, the Fed slowed its balance sheet reduction and pushed forward a new round of quantitative easing, strengthening the TWD. After 2018, with the start of the Fed’s rate hike cycle, the TWD appreciation slowed.

The 2020 pandemic dramatically changed everything. The Fed expanded its balance sheet from $4.5 trillion to nearly $9 trillion in a short period, while lowering interest rates to zero, increasing the dollar’s depreciation pressure. The TWD once surged to 27 per USD. But after 2022, with U.S. inflation spiraling out of control and the Fed entering a rapid rate hike cycle, the dollar surged again, and the exchange rate retreated within a relatively narrow range.

It was only after September 2024, when the Fed ended this high-interest cycle and began cutting rates, that the USD/TWD trend adjusted again. The entire decade reflects a fundamental logic: the long-term appreciation or depreciation of the TWD depends on the dollar cycle, not Taiwan’s domestic factors.

How Investors Should Respond

For investors with different risk tolerances, strategies should differ accordingly.

Short-term traders should avoid excessive leverage and impulsive additions. When USD/TWD volatility intensifies, it often signals the highest risk. Setting clear stop-loss points is crucial to protect capital. Many FX trading platforms offer demo accounts; it’s recommended to test trading strategies in a virtual environment first, confirming feasibility before trading with real funds.

Medium- and long-term investors should recognize that Taiwan’s economic fundamentals are indeed solid — robust semiconductor exports and a continuous widening trade surplus. But this does not mean blindly betting on currency appreciation. A rational approach is to keep FX positions within 5%–10% of total assets and diversify with other global assets like Taiwan stocks or bonds to achieve genuine risk diversification.

Technical advice: There is a common “psychological level” in the market — USD 1 = TWD 30. Most investors see this as an attractive level below, and above 32, they consider reducing positions. This reference point can serve as a decision basis for long-term FX investments.

Closely monitor the actions of Taiwan’s central bank and the latest developments in US-Taiwan trade negotiations, as these factors will directly influence the future trajectory of USD/TWD. In a highly uncertain policy environment, maintaining vigilance and flexibility is more important than chasing short-term gains.

Regardless of the strategy adopted, the core principles remain consistent: avoid concentration risk, review positions regularly, and adjust dynamically according to market conditions. This is the correct posture for prudently responding to USD/TWD exchange rate fluctuations.