Taiwan Stocks Surge to Become World's Fifth-Largest Market; Foreign Investors Net Buy $5.2 Billion This Week

Overview

Goldman Sachs' weekly Taiwan market report notes that Taiwan's stock market continued to rise driven by strong foreign buying. The TAIEX surged 4% this week, while the MSCI Taiwan Index and TWSE Index posted weekly gains of 6.1% and 6.3% respectively, outperforming the Asia-Pacific index by 3.2 percentage points. Taiwan has surpassed India to become the world's fifth-largest stock market with a market capitalization of $5.1 trillion, accounting for 26% of the MSCI Emerging Markets Index, making it the largest single market. Since 2020, Taiwan's MSCI index has accumulated a gain of 320%, with a year-to-date increase of 60%, significantly outperforming major global markets.

Core views

Regarding capital flows, Qualified Foreign Institutional Investors (QFIIs) net bought $5.2 billion this week, with significant additions to tech stocks; TSMC saw net buying of $900 million due to MSCI rebalancing, while other tech stocks received $4.2 billion in net inflows. Simultaneously, foreign investors increased net short futures positions by $8 billion. Local funds net bought $300 million, and retail investors increased net long futures positions by $6.6 billion, though they moderately reduced margin balance ratios. In terms of ETFs, non-dividend funds saw inflows of $1.1 billion, partially offset by outflows of $860 million from dividend products. Sector performance showed clear divergence: semiconductors (Others +9%, TSMC +4.4%), insurance & financial services (+9%), and tech hardware (+8%) led gains, while consumer staples, transportation, real estate, and telecommunications lagged with declines of 0-1%. April macro data showed industrial production grew 14.2% year-over-year (below consensus of 19.3% and March's 28.7%), dragged down by the non-tech sector; retail sales grew 5.2% year-over-year (up from 3.3% in March). On valuation, Taiwan stocks trade at forward 12-month/24-month P/E ratios of 22.3x/17.9x, which are 3.4/2.8 standard deviations above historical averages, respectively. The TSMC ADR premium fell to 12% (down 1 percentage point), and the GSSRTSMR reversal index stands at -0.3, signaling potential rebound opportunities. The cross-strait risk indicator GSSRCSRI dropped to 98.

Analysis framework

Goldman Sachs employs a multi-dimensional analytical framework to assess the Taiwan market: First, it tracks Taiwan's changing status in global equity markets through market rankings and index performance, using MSCI index gains and market cap ranking as core metrics. Second, it analyzes capital flows (QFIIs, local funds, retail, ETFs) to gauge market sentiment and allocation directions. Third, it identifies leading and lagging industries through relative sector performance to assist allocation decisions. Additionally, it combines macro data (industrial production, retail sales) to validate economic fundamentals. Finally, it uses valuation metrics (PE percentiles, ADR premiums, risk indicators) to evaluate market risk-reward ratios. This top-down combined with bottom-up approach comprehensively captures market dynamics.

Methodology notes

• Industry/Sector Analysis FrameworkIndustry Concentration Analysis

  Analyzing Taiwan's relative position through its weight in the MSCI Emerging Markets Index

  The report uses Taiwan's weight in the MSCI EM Index (26%) to measure its importance within emerging markets; a higher weight indicates greater influence on the index and more significant impact on index fund allocations.

• Quantitative/Factor/Portfolio TheoryBeta/alpha analysis

  Evaluating Taiwan market alpha returns through relative performance (outperforming MXAPJ by 3.2%)

  The report compares Taiwan indices against the Asia-Pacific index to determine if the Taiwan market generates excess returns; a larger outperformance indicates stronger alpha.

• Valuation methodsPE/PEG valuation

  Using forward 12-month/24-month P/E ratios to assess Taiwan stock valuation levels

  Forward PE calculates valuation based on future earnings forecasts. The report provides both 12-month and 24-month perspectives and compares them to historical averages (measured in standard deviations) to help determine if current valuations are high or low.

• Event Arbitrage & Behavioral FinanceCapital Flow/Chip Analysis

  Tracking capital flows from different investor types including QFIIs, local funds, retail, and ETFs

  Buying and selling behaviors of different investor types reflect varying market sentiments and allocation logics. Significant foreign net inflows are generally seen as positive signals, while changes in futures positions can reflect hedging or speculative demands.

• Corporate Fundamentals & Financial FrameworkEarnings Quality Analysis

  Judging analyst expectation changes for earnings through the direction of EPS revisions (positive/negative)

  EPS revisions reflect analysts' adjustments to future earnings forecasts for companies; more positive revisions indicate improved earnings expectations, which typically provide positive support for stock prices.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• TSMC

  Beneficiary: Foreign investors net bought $900 million due to MSCI rebalancing; semiconductor sector led gains

  Strengths

  Passive inflows from MSCI rebalancing; high industry景气度 (prosperity) in semiconductors

  Weaknesses

  ADR premium fell to 12%, indicating decreased relative attractiveness

  Comparison

  Other companies in the semiconductor sector gained more (Other Semis +9% vs TSMC +4.4%)

  Risks

  Valuations are at high levels; declining ADR premium may affect short-term performance

• Nan Ya PCB (8046)

  Beneficiary: Expected to be included in the FTSE Taiwan TWSE 50 Index

  Strengths

  Expected inclusion in FTSE index review will attract passive capital allocation

  Comparison

  Expected to be included alongside Zhen Ding and BizLink

  Risks

  Index inclusion expectations not yet finally confirmed

• Zhen Ding (4958)

  Beneficiary: Expected to be included in the FTSE Taiwan TWSE 50 Index

  Strengths

  Expected inclusion in FTSE index review will attract passive capital allocation

  Comparison

  Expected to be included alongside Nan Ya PCB and BizLink

  Risks

  Index inclusion expectations not yet finally confirmed

• BizLink (3665)

  Beneficiary: Expected to be included in the FTSE Taiwan TWSE 50 Index

  Strengths

  Expected inclusion in FTSE index review will attract passive capital allocation

  Comparison

  Expected to be included alongside Nan Ya PCB and Zhen Ding

  Risks

  Index inclusion expectations not yet finally confirmed

• Formosa Plastics (1301)

  Adversely Affected: Expected to be removed from the FTSE Taiwan TWSE 50 Index

  Weaknesses

  Expected removal in FTSE index review may face passive capital outflows

  Comparison

  Expected to be removed alongside ICP Electronics, Hotai Motor, and China Steel

  Risks

  Index removal may lead to short-term selling pressure

• China Steel (2002)

  Adversely Affected: Expected to be removed from the FTSE Taiwan TWSE 50 Index

  Weaknesses

  Expected removal in FTSE index review may face passive capital outflows

  Comparison

  Expected to be removed alongside Formosa Plastics, ICP Electronics, and Hotai Motor

  Risks

  Index removal may lead to short-term selling pressure

Key data

• TAIEX Weekly Gain+4%Taiwan stocks surged significantly this week
• MSCI Taiwan/TWSE Weekly Gain+6.1%/+6.3%Outperformed MXAPJ index by 3.2 percentage points
• Taiwan Global Stock Market Ranking5th LargestSurpassed India, market cap $5.1 trillion
• MSCI Gain Since 2020+320%Significantly outperformed major global markets
• Year-to-Date Gain+60%Strong YTD performance in 2026
• Foreign Net Buying$5.2 billionSignificant net inflow from QFIIs this week
• TSMC Foreign Net Buying$900 millionAdded due to MSCI rebalancing
• Forward 12m/24m PE22.3x/17.9x3.4/2.8 standard deviations above historical averages, respectively
• 2027E Consensus EPS Revision+0.8%Positive for commodities/financials/industrials, negative for consumer
• April Industrial Production YoY+14.2%Below consensus of 19.3%, dragged by non-tech sector
• April Retail Sales YoY+5.2%Up from 3.3% in March, indicating consumption improvement
• TSMC ADR Premium12%Down 1 percentage point
• Taiwan Weight in MSCI EM Index26%Largest single market in the MSCI Emerging Markets Index

Impact & implications

The report suggests that Taiwan's strong stock market performance reflects continued foreign optimism towards the tech sector, particularly the semiconductor supply chain. Taiwan surpassing India to become the world's fifth-largest stock market marks a further elevation of its capital market status; its 26% weight in the MSCI Emerging Markets Index makes it a core target for emerging market allocations. The substantial foreign net inflow of $5.2 billion demonstrates international investor confidence in the Taiwan market, although the simultaneous increase of $8 billion in net short futures positions indicates that some investors are hedging while buying spot. Sector divergence is evident, with tech-related sectors continuing to lead while defensive sectors like consumer and real estate lag, reflecting high market risk appetite. Valuations are at historically high levels (PE more than 3 standard deviations above the mean), so investors need to monitor whether future earnings can support current valuations.

Risks

• Valuations are at historically high levels, with forward PE more than 3 standard deviations above the historical mean
• Foreign investors simultaneously increased net short futures positions by $8 billion, indicating some investors are hedging risks
• April industrial production at 14.2% was below the consensus of 19.3%, with weak performance in the non-tech sector
• Consumer sector EPS revisions are negative, reflecting analysts lowering earnings expectations for the consumer industry
• Although the cross-strait risk indicator has declined, geopolitical risks still need monitoring

What to watch

• S&P Global PMI data (released Monday)
• Inflation data (released Friday)
• FTSE Taiwan TWSE 50 Index constituent adjustment results (announced next Friday)
• Changes in foreign capital flows, especially the sustainability of tech stock buying
• TSMC ADR premium and trends in the GSSRTSMR reversal index