Sep 18: 8 Strong Themes — Power Equipment, Electric Cables

September 18, 2026 · #Power Equipment #Electric Cables #5G #System Semiconductors #Telecom Equipment #Defense & War #Optical Communications #Beauty & Cosmetics

8 strong themes — 7 running · 1 recurred. Top: Power Equipment +13.3%.

Strong themes8 Top change+13.3% LeaderSeondo Electric

Average change by strong theme

Average change of member stocks, by theme · descending
Power Equipment
+13.3%
Electric Cables
+11.5%
5G
+11.2%
System Semiconductors
+10.3%
Telecom Equipment
+9.9%
Defense & War
+9.9%
Optical Communications
+9.8%
Beauty & Cosmetics
+9.5%

Theme leaders · recent trend

The line is the trend; the end-point colour is the last trading day's direction. Stocks without enough price history show as -
ThemeLeaderChangeTrend
Power EquipmentSeondo Electric+29.96%
Electric CablesGaon Cable+25.53%
5GWooriro+15.10%
System SemiconductorsAlphachips+11.29%
Telecom EquipmentWooriro+15.10%
Defense & WarKencoa Aerospace+14.66%
Optical CommunicationsSungho Electronics+24.07%
Beauty & CosmeticsNFC+29.92%

Power Equipment led the Sep 18 session with an average change of 13.35%, and all 10 of its stocks closed higher. Leader Seondo Electric gained 29.96%.

Gaon Cable rose 25.53% to lead Electric Cables, which averaged 11.5% with all 8 stocks up. Headlines tied the move to Amazon power equipment contracts.

5G averaged 11.21%, led by Wooriro at 15.1%. Optical Communications rose with them, as Sungho Electronics gained 24.07% on AI data center headlines.

Today’s Strong Themes at a Glance

#ThemeStatusAvg. changeUp/TotalLeader
1Power Equipment3 days running+13.3%10/10Seondo Electric
2Electric Cables3 days running+11.5%8/8Gaon Cable
35G3 days running+11.2%10/10Wooriro
4System Semiconductors2 days running+10.3%10/10Alphachips
5Telecom Equipment2 days running+9.9%10/10Wooriro
6Defense & War2 days running+9.9%10/10Kencoa Aerospace
7Optical Communications3 days running+9.8%10/10Sungho Electronics
8Beauty & Cosmeticsrecurred after 4 days+9.5%10/10NFC

Theme by Theme

1. Power Equipment (3 days running)

StockChangeCloseLeader
Seondo Electric 007610+30.0%4,945★
Gaon Cable 000500+25.5%327,000
LS Eco Energy 229640+14.2%60,500
TC Materials 125020+11.6%6,540
Taihan Cable & Solution 001440+11.1%31,450
KBI Metal 024840+10.5%6,500
Iljin Electric 103590+9.1%76,600
Dawon Cable 006340+8.0%13,890
LS 006260+7.1%325,500
LS Marine Solution 060370+6.4%34,000

2. Electric Cables (3 days running)

StockChangeCloseLeader
Gaon Cable 000500+25.5%327,000★
LS Eco Energy 229640+14.2%60,500
Taihan Cable & Solution 001440+11.1%31,450
KBI Metal 024840+10.5%6,500
Iljin Electric 103590+9.1%76,600
Dawon Cable 006340+8.0%13,890
LS 006260+7.1%325,500
LS Marine Solution 060370+6.4%34,000

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3. 5G (3 days running)

StockChangeCloseLeader
Wooriro 046970+15.1%8,080★
LS Eco Energy 229640+14.2%60,500
Inno Instrument 215790+13.8%802
TAIHAN Fiberoptics 010170+13.6%18,320
RFHIC 218410+12.6%60,100
Sensorview 321370+10.5%1,863
Woori-Net 115440+9.0%10,210
Ace Technologies 088800+8.1%2,405
Davolink 340360+8.0%988
HFR 230240+7.4%13,640

4. System Semiconductors (2 days running)

StockChangeCloseLeader
NC& 092600+29.9%3,670
Alphachips 117670+11.3%11,530★
Ictk 456010+10.7%22,700
Doosan Tesna 131970+9.1%86,100
Hansol Technics 004710+8.6%9,990
Signetics 033170+7.2%2,150
Mdevice 226590+7.0%13,730
Openedges Technology 394280+6.7%9,090
SK hynix 000660+6.4%1,857,000
Gaonchips 399720+5.8%42,750

5. Telecom Equipment (2 days running)

StockChangeCloseLeader
Wooriro 046970+15.1%8,080★
Inno Instrument 215790+13.8%802
RFHIC 218410+12.6%60,100
Sensorview 321370+10.5%1,863
Woori-Net 115440+9.0%10,210
Ace Technologies 088800+8.1%2,405
Davolink 340360+8.0%988
Fino 033790+7.7%8,000
HFR 230240+7.4%13,640
Opticis 109080+7.2%9,780

6. Defense & War (2 days running)

StockChangeCloseLeader
Kencoa Aerospace 274090+14.7%13,220★
TAIHAN Fiberoptics 010170+13.6%18,320
RFHIC 218410+12.6%60,100
Sensorview 321370+10.5%1,863
RF Systems 474610+10.0%7,930
Nearthlab 417030+8.5%31,250
Ace Technologies 088800+8.1%2,405
RF Materials 327260+7.2%48,600
Fiberpro 368770+6.9%14,040
Haein 003010+6.9%10,560

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7. Optical Communications (3 days running)

StockChangeCloseLeader
Sungho Electronics 043260+24.1%26,800★
TAIHAN Fiberoptics 010170+13.6%18,320
RFHIC 218410+12.6%60,100
Woori-Net 115440+9.0%10,210
RF Materials 327260+7.2%48,600
LS 006260+7.1%325,500
Fiberpro 368770+6.9%14,040
VISSEM Electronics 072950+6.8%14,250
TMC 217590+5.7%14,550
Mercury 100590+5.1%4,940

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8. Beauty & Cosmetics (recurred after 4 days)

StockChangeCloseLeader
NFC 265740+29.9%8,250★
Beautyskin 406820+13.6%2,625
Able C&C 078520+9.9%10,940
Pharmicell 005690+8.2%12,530
Heng Sheng Holding Group 900270+7.3%3,090
Cell Bio Human Tech 318160+6.5%7,400
Hankook Cosmetics Manufacturing 003350+6.3%15,770
Coloray International Investment 900310+4.7%2,105
d’Alba Global 483650+4.4%180,300
Apr 278470+4.0%367,000

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Closing Thoughts

Power Equipment, Electric Cables and Optical Communications have each run for 3 days since 2026-09-16. System Semiconductors, on a 2-day streak, averaged 10.28% and was led by Alphachips.

Beauty & Cosmetics came back after a 4-day gap, and all 10 of its stocks rose. NFC gained 29.92% after headlines projected a 63% rise in its Q3 operating profit.