6-K ·Filed May 13, 2026

UMC

UNITED MICROELECTRONICS CORP
NEUTRAL
Impact 2/10
Horizonimmediate Processed4mo ago SEC0001193125-26-220535
Notable filing: 6-K
Actionable Insight • Neutral

No material impact from this filing. Monitor upcoming Q2 2026 earnings for fundamental trends in semiconductor demand and UMC's utilization rates.

DirectionNeutral
Confidencehigh
Horizonimmediate
Final — all horizons settled through T+60d
UMC ▲ +17.59% at T+60d
NEUTRAL call ✓ call won +17.59% · α vs SPY +13.15% · entry $15.92 → $18.72
Entry anchored
May 12, 03:59 PM ET
via exchange tick
T+1d
+7.60%
call +7.60% · α +6.82%
$17.13
settled 5mo ago
T+5d
+10.43%
call +10.43% · α +11.59%
$17.58
settled 5mo ago
T+20d
+29.90%
call +29.90% · α +30.51%
$20.68
settled 4mo ago
T+60d
+17.59%
call +17.59% · α +13.15%
$18.72
settled 8w ago

Price Chart

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Executive Summary

UMC filed a 6-K reporting two routine items: (1) a capital reduction of ~0.012% of outstanding shares due to cancellation of RSA, with book value per share unchanged at NT$32.34; (2) cumulative share repurchases exceeding NTD$300 million, with 16.75 million shares (0.13% of outstanding) repurchased at average NT$98.12. Neither event has material financial impact.

Key Facts

  • Capital reduction approved on 2026/05/12; shares outstanding decreased from 12,578,524,619 to 12,576,984,870.
  • Book value per share remained effectively flat at NT$32.34 (from NT$32.33).
  • Cumulative repurchases of 16,751,000 shares (0.13% of total outstanding) as of 2026/05/13.
  • Total repurchase amount of NTD$637,759,742 at average price NT$98.12 per share.

Financial Impact

Negligible. Capital reduction reduces shares by ~0.012%; buyback represents 0.13% of shares outstanding.

shares outstandingbook value per share

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices
Analyst Consensus
31% bullish (32 analysts)

Investment Themes

Semiconductors

Documents Analyzed

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

DocumentAccession Number
6-K Filing (Primary)0001193125-26-220535
Document: umc-ex99.htm0001193125-26-220535
Document: 0001193125-26-220535-index-headers.html0001193125-26-220535
Document: 0001193125-26-220535-index.html0001193125-26-220535
Document: 0001193125-26-220535.txt0001193125-26-220535
25 reports for UMC
Performance horizon
60% Hit rate 3 of 5 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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