---
title: "UMC missed consensus at 92% utilization and added $3.2 billion of capex, with the stock up 147.5%"
description: "The mature-node foundry missed consensus and asked its board for another US$3.2 billion of capex, while 45% of its nine-month pre-tax profit came from outside operations. The 2027 price rise management promised is still only a negotiation."
publisher: "The Inference"
section: "Chips"
published: 2026-10-28T16:19:14.144Z
modified: 2026-10-28T16:19:14.144Z
canonical: https://theinference.org/article/umc-missed-consensus-at-92-utilization-and-added-3-2-billion-of-capex-with-the-stock-up-147-5
language: en
keywords: "United Microelectronics, Foundries, Earnings, Capex, Taiwan"
---

# UMC missed consensus at 92% utilization and added $3.2 billion of capex, with the stock up 147.5%

> The mature-node foundry missed consensus and asked its board for another US$3.2 billion of capex, while 45% of its nine-month pre-tax profit came from outside operations. The 2027 price rise management promised is still only a negotiation.

Taiwan's third-largest foundry just asked investors to pay for a price rise that has not been signed yet. On October 28, [United Microelectronics](https://theinference.org/markets/companies/united-microelectronics) reported third-quarter revenue of NT$74.24 billion, or US$2.32 billion, up 25.6% year on year but short of the US$2.35 billion analysts expected, and [earnings per ADS of US$0.21, a cent below consensus](https://www.streetinsider.com/Earnings/United+Microelectronics+%28UMC%29+Misses+Q3+EPS+by+0c/27244846.html) [1][2][3]. [The ADR fell in Wednesday trading](https://www.benzinga.com/markets/earnings/26/10/62648893/taiwans-united-microelectronics-sees-trouble-brewing-in-budget-smartphones-but-says-its-exposure-is-limited) [3].

## The fab is full, and that part is real

The quarter itself was strong where it counts. Utilization hit 92%, up from 85% in the second quarter and 78% a year earlier, on record wafer shipments of more than 1.2 million 12-inch-equivalent wafers [1][3]. Gross margin reached 34.0%, operating margin 25.1%, and 22nm hit a record 18.3% of wafer sales on display-driver, automotive-radar and Wi-Fi tape-outs [1][3].

*Chart: **UMC fab utilization climbed from 78% to 92% in a year** Bar chart of UMC capacity utilization: 78% a year earlier, 85% in Q2 2026, 92% in Q3 2026*

*Capacity utilization rate by quarter, percent: utilization of 92% in Q3 2026 vs 85% in Q2 2026 and 78% a year earlier. Source: Benzinga, UMC Q3 2026 results coverage [3]. [3]*

*Chart: **Margins have climbed for four straight quarters but sit below the 2023 peak** Line chart of UMC gross and operating margin by quarter from Q3 2023 to Q2 2026, gross margin from 35.9% down to a 26.7% trough in Q1 2025 and back to 32.5%, operating margin from 26.8% down to 16.9% and back to 21.8%*

*Gross and operating margin, percent of revenue, quarterly from Q3 2023 to Q2 2026. Q3 2026's reported 34.0% gross margin and 25.1% operating margin extend the climb. Source: United Microelectronics, quarterly figures from its SEC filings [6]. [6]*

## The filing says what the wire did not

For the first nine months, [pre-tax profit was NT$81.74 billion but operating income was NT$44.87 billion](https://www.sec.gov/Archives/edgar/data/1033767/000119312526434992/0001193125-26-434992-index.htm) [1]. NT$36.9 billion, 45% of pre-tax profit, came from outside the fab, largely a second-quarter non-operating gain [1][4]. Third-quarter net income of NT$16.43 billion fell 61.2% from the second quarter on that same swing [1][4]. On operating earnings alone, nine-month EPS is roughly NT$3.57, about US$0.56 per ADS, so the US$19.46 ADR trades near 26 times the operating run-rate, not the mid-teens the headline implies [1][4].

## A 10% price rise nobody has signed

Chief executive Jason Wang wants 2027 to be the turn: [at least 10% higher blended average selling prices](https://www.benzinga.com/news/26/10/62646009/united-microelectronics-q3-2026-earnings-call-transcript), year on year, with negotiations at a late stage but not concluded [1][2]. To serve it, [the board approved another US$3.2 billion of capex](https://cio.economictimes.indiatimes.com/news/investments/umc-invests-3-2-billion-in-capacity-expansion-amid-ai-revenue-growth-forecast/135262991) on top of the earlier US$5 billion plan, for silicon photonics, capacitor and modulator capacity that only starts ramping in late 2028 [1][2].

[Our October 23 reporting](https://theinference.org/article/united-microelectronics-cfo-s-stake-fell-28-4-in-september-insiders-sold-526-million-and-bought-nothing) already noted CFO [Chitung Liu](https://theinference.org/markets/people/chitung-liu)'s stake falling 28.4% in September and US$526.4 million of insider sales without a single buy; what is new since is the October 28 print itself, the revenue miss and this fresh US$3.2 billion approval [5].

## What could sink the promise

Management itself flagged the offsets: rising raw-material costs and heavier depreciation will keep gross margin below earlier peaks [2]. And the demand mix cuts against the promise. Consumer is about 32% of revenue today while AI will be only 25% of revenue in three years, and management sees PC demand declining with budget smartphones weaker still [2][3][5]. The AI legs, silicon photonics and advanced packaging, cannot carry the stock until the late-2028 capacity lands [2].

The test is dated. The first 2027 ASP guidance arrives with the January earnings call [5]. Until customers sign, the price rise is a promise, and a stock up 147.5% this year is priced on the promise [5].

## Takeaway

UMC's fab is genuinely full at 92% utilization, but 45% of its nine-month pre-tax profit came from outside the fab, the promised 2027 price rise is unsigned, and a stock up 147.5% this year is priced on the promise.

## Sources

1. [SEC EDGAR, UMC Form 6-K, October 28 2026](https://www.sec.gov/Archives/edgar/data/1033767/000119312526434992/0001193125-26-434992-index.htm)
2. [Benzinga, United Microelectronics Q3 2026 Earnings Call Transcript, October 28 2026](https://www.benzinga.com/news/26/10/62646009/united-microelectronics-q3-2026-earnings-call-transcript)
3. [Benzinga, Why Is United Microelectronics Stock Falling Wednesday?, October 28 2026](https://www.benzinga.com/markets/earnings/26/10/62648893/taiwans-united-microelectronics-sees-trouble-brewing-in-budget-smartphones-but-says-its-exposure-is-limited)
4. [StreetInsider, United Microelectronics (UMC) Misses Q3 EPS by 0c, October 28 2026](https://www.streetinsider.com/Earnings/United+Microelectronics+%28UMC%29+Misses+Q3+EPS+by+0c/27244846.html)
5. [ET CIO, UMC invests $3.2 billion in capacity expansion amid AI revenue growth forecast, October 28 2026](https://cio.economictimes.indiatimes.com/news/investments/umc-invests-3-2-billion-in-capacity-expansion-amid-ai-revenue-growth-forecast/135262991)
6. [United Microelectronics, quarterly figures from its SEC filings, retrieved 28 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001033767)


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UMC missed consensus at 92% utilization and added $3.2 billion of capex, with the stock up 147.5% — The Inference. Canonical: https://theinference.org/article/umc-missed-consensus-at-92-utilization-and-added-3-2-billion-of-capex-with-the-stock-up-147-5
