6-K ·Filed Sep 4, 2026

UMC

UNITED MICROELECTRONICS CORP
BULLISH
Impact 5/10
Horizondays Processed28d 8h ago SEC0001193125-26-382689
Notable filing: 6-K
Actionable Insight ▲ Bullish

The strong August revenue beat suggests improving demand for UMC's mature-node foundry services. Monitor the upcoming investor conferences (Citi on 9/10, UBS on 9/14-15) for any guidance updates or commentary on Q3 outlook and end-market trends.

DirectionBullish
Confidencemedium
Horizondays
Latest settled — T+5d
UMC ▲ +5.44% at T+5d
LONG call ✓ call won +5.44% · α vs SPY +6.65% · entry $20.77 → $21.90
Next anchor: T+20d in 3d
Latest observation: T+16 +18.15% FF3 residual α
Entry anchored
Sep 4, 06:02 AM ET
via 1-min bar
T+1d
+5.06%
call +5.06% · α +5.60%
$21.82
settled 24d ago
T+5d
+5.44%
call +5.44% · α +6.65%
$21.90
settled 18d ago
T+20d
—
call — · α —
—
in 3d
T+60d
—
call — · α —
—
in 2mo

Price Chart

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Executive Summary

UMC reported August 2026 net sales of NT$25.04B, up 30.71% YoY, and YTD sales up 14.66% YoY. The strong monthly revenue signals robust foundry demand. The company also announced upcoming investor conferences with Citi and UBS.

Key Facts

  • August 2026 net sales: NT$25,044,641 thousand (NT$25.04B), +30.71% YoY
  • Year-to-date net sales (Jan-Aug 2026): NT$178,659,250 thousand, +14.66% YoY
  • UMC will attend Citi's 2026 GEMs Conference on 9/10/2026 and UBS's Taiwan Summit on 9/14-15/2026

Financial Impact

August revenue grew 30.71% YoY to NT$25.04B, indicating strong demand momentum.

revenue

Risk Factors

  • Semiconductor cycle volatility could reverse demand trends
  • Geopolitical risks in Taiwan-China relations
  • Potential normalization of year-over-year comparisons in coming months

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices
Analyst Consensus
61% bullish (33 analysts)

Investment Themes

Semiconductors

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
6-K Filing (Primary)0001193125-26-382689
Document: 6k_on_09042026.htm0001193125-26-382689
Document: 0001193125-26-382689-index-headers.html0001193125-26-382689
Document: 0001193125-26-382689-index.html0001193125-26-382689
Document: 0001193125-26-382689.txt0001193125-26-382689
25 reports for UMC
Performance horizon
50% Hit rate 2 of 4 directional calls best @ T+1▲ +6.91%Jun 23, 2026
Filters
Rows
Reports for UMC — sortable, filterable
TypeNow
Sep 4, 2026
28d ago
6-K
BULLISH ★ 5/10
$20.77 $21.90▲ +5.44%▲ +6.65%$26.27 (+26.48%)
Sep 2, 2026
4w ago
6-K
NEUTRAL ★ 2/10
$19.97 $22.12▲ +10.77%▲ +11.72%$26.27 (+31.55%)
Aug 26, 2026
5w ago
6-K
BEARISH ★ 5/10
$19.03 $19.97▼ −4.94%▼ −5.06%$26.27 (−38.05%)
Aug 14, 2026
7w ago
6-K
BEARISH ★ 5/10
$19.15 $18.34▲ +4.23%▲ +2.86%$26.27 (−37.18%)
Aug 5, 2026
8w ago
6-K
NEUTRAL ★ 2/10
$19.29 $19.31▲ +0.10%▼ −0.25%$26.27 (+36.18%)
Jul 21, 2026
10w ago
6-K
NEUTRAL ★ 2/10
$21.19 $19.08▼ −9.96%▼ −8.73%$26.27 (+23.97%)
Jul 15, 2026
11w ago
6-K
NEUTRAL ★ 2/10
$24.92 $21.29▼ −14.57%▼ −13.59%$26.27 (+5.42%)
Jul 14, 2026
11w ago
6-K
NEUTRAL ★ 3/10
$23.84 $20.30▼ −14.85%▼ −13.55%$26.27 (+10.19%)
Jul 6, 2026
12w ago
6-K
BULLISH ★ 5/10
$25.83 $24.34▼ −5.77%▼ −6.26%$26.27 (+1.70%)
Jun 29, 2026
13w ago
6-K
NEUTRAL ★ 3/10
$26.84 $25.83▼ −3.76%▼ −5.15%$26.27 (−2.12%)
Showing 10 of 25

US Market Status

Market Closed — Opens Mon (39h 27m)

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