Foreign Investors Pour NT$11.4 Billion into UMC While Government-Linked Funds Offload NT$2.54 Billion, Becoming the Biggest Selling Pressure

Taiwan’s stock market opened higher and fluctuated today, with the Taiwan Weighted Index closing up 356.23 points, or 0.77%, at 46,331.45. Wafer foundry giant UMC (2303.TW) surged to its daily limit-up at NT$130, boosted by both capacity expansion themes and a positive third-quarter outlook, with single-day trading volume exploding to nearly 320,000 lots. Foreign investors made massive net purchases of NT$41.59 billion (approximately $1.3 billion), of which UMC alone accounted for a staggering NT$11.4 billion (approximately $360.5 million) across nearly 89,000 lots, topping the listed-stock buy list. However, Taiwan’s eight major government-linked banks chose to offload at this juncture, aggressively selling nearly 20,000 lots of UMC and withdrawing NT$2.54 billion (approximately $80.2 million), making it the top government-linked fund sell of the day. Foreign investors and government-linked funds displayed a clear “you buy, I sell” opposing pattern on UMC.

Foreign Investor Shopping List: Financials and Panels Also Favored

According to trading flow data released by the Taiwan Stock Exchange, among foreign investors’ top ten net buys today, UMC firmly held the top spot with 88,988 lots, followed by First Financial Holding (2892.TW) at 43,364 lots and Mega Financial Holding (2886.TW) at 42,353 lots. The two panel makers also received heavy foreign investor accumulation, with Innolux (3481.TW) seeing net buys of 23,715 lots and AUO (2409.TW) at 14,811 lots, ranking fourth and sixth respectively.

Other names in the foreign investor top ten buy list, in order, were Nan Ya Plastics (1303.TW) at 15,678 lots, Hua Nan Financial Holdings (2880.TW) at 14,103 lots, Taiwan Glass Ind. (1802.TW) at 11,554 lots, King Yuan Electronics (2449.TW) at 11,540 lots, and Taiwan Business Bank (2834.TW) at 11,459 lots. Looking at the list composition, foreign investor buying today was clearly concentrated in wafer foundry, financial, and panel sectors, reflecting a preference for semiconductor cycle recovery and stable dividend-paying financial stocks.

Government-Linked Funds Trim into Strength: UMC Becomes the Biggest ATM

In contrast to foreign investors’ aggressive accumulation, Taiwan’s eight major government-linked banks operated in the exact opposite direction today. UMC topped the government-linked fund sell list with 19,794 lots sold. Based on the limit-up price of NT$130, government-linked funds withdrew approximately NT$2.54 billion (approximately $80.2 million) from UMC alone. Notably, three of the top four government-linked fund sells also appeared on the foreign investor top ten buy list — UMC, First Financial Holding, and Mega Financial Holding — indicating clear opposing positioning between government-linked funds and foreign investors on these names.

Government-linked fund sells ranked second through fifth were: First Financial Holding at 4,674 lots, Mega Financial Holding at 4,030 lots, Innolux at 3,616 lots, and Hua Nan Financial Holdings at 2,927 lots. Sixth through tenth were AUO at 2,426 lots, King Yuan Electronics at 2,008 lots, Formosan Union Chemical (1709.TW) at 1,679 lots, Taiwan Glass Ind. at 1,607 lots, and Formosa Plastics (1301.TW) at 1,537 lots.

Market participants noted that government-linked funds choosing to trim into strength amid a sharp index rally is consistent with their long-standing “buy low, sell high” operating pattern. In particular, UMC gapped up from NT$118.5 in the previous session to hit the NT$130 limit-up today, a single-day gain of 9.7%, creating considerable short-term profit-taking pressure. It is hardly surprising that government-linked funds took the opportunity to reduce positions.

UMC Fundamentals Strengthen: Earnings Call Delivered Optimistic Signals

UMC’s strong share price performance today is backed by fundamentals. The company previously delivered an optimistic outlook at its earnings call, guiding for high single-digit percentage quarter-over-quarter wafer shipment growth in Q3, stable average selling prices, gross margin maintained in the mid-30% range, and capacity utilization potentially exceeding 90%. Additionally, UMC raised its full-year capital expenditure to $2 billion (approximately NT$63 billion), signaling confidence in medium-to-long-term demand prospects.

This stands in stark contrast to the previous session’s sentiment. Taiwan’s weighted index rose 142.6 points yesterday to close at 45,975.22, but UMC bucked the trend with a 4.05% decline to NT$118.5, as foreign investors and securities investment trust funds combined to aggressively sell nearly 50,000 lots — foreign investors sold 31,746 lots and investment trusts sold 17,973 lots, disappointing UMC’s 1.04 million shareholders. At that time, the eight major government-linked funds bought 2,733 lots on the dip, ranking second on the listed-stock buy list. Within a single trading day, government-linked funds shifted from “accumulating on weakness” to “dumping into strength,” demonstrating remarkably nimble trading.

Market Implications of Opposing Positioning

The opposing positioning between foreign investors and government-linked funds on UMC reflects strategic divergence among different capital camps in Taiwan’s current stock market. Foreign investors, focusing on UMC’s improving Q3 outlook, capacity utilization recovering above 90%, and the expansion ambitions signaled by the capex increase, chose to build positions aggressively. Government-linked funds, playing their role as market stabilizers, trimmed holdings amid sharp short-term rallies — realizing profits on one hand while preventing market overheating on the other.

Institutional analysts pointed out that UMC’s massive volume of nearly 320,000 lots today, if the NT$130 limit-up price can hold in subsequent sessions, would help reverse the stock’s prolonged sluggish trend. However, investors should remain vigilant: if government-linked fund selling pressure continues to expand, it could create near-term supply overhang. Furthermore, the two panel makers Innolux and AUO also exhibited the same foreign-buy, government-sell pattern, indicating that government-linked funds are consistently trimming across sectors that have rallied significantly. Investors chasing strength should pay close attention to changes in trading flow dynamics.