Oct 22: 8 Strong Themes — Battery, Petrochemicals

October 22, 2025 · #Battery #Petrochemicals #Holding Companies #Cybersecurity #EV #Shipping #Steel (Small & Mid Cap) #Quantum Cryptography & Computing

8 strong themes — 2 running · 6 recurred. Top: Battery +11.0%.

Strong themes8 Top change+11.0% LeaderZaigle

Average change by strong theme

Average change of member stocks, by theme · descending

Battery

+11.0%

Petrochemicals

+9.6%

Holding Companies

+9.2%

Cybersecurity

+8.3%

+7.8%

Shipping

+4.1%

Steel (Small & Mid Cap)

+4.0%

Quantum Cryptography & Computing

+3.5%

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 -

Theme	Leader	Change
Battery	Zaigle	+12.94%
Petrochemicals	Isu Chemical	+29.95%
Holding Companies	Woory Industrial Holdings	+29.91%
Cybersecurity	CyberOne	+23.98%
EV	Wonik Pne	+8.53%
Shipping	Heung-a Shipping	+7.79%
Steel (Small & Mid Cap)	Finebesteel	+7.95%
Quantum Cryptography & Computing	HanWool Materials Science	+9.20%

Eight themes rallied on 2025-10-22, and every stock listed in them closed higher. Battery led with an average change of 11.04%, and all 10 of its stocks rose.

Isu Chemical jumped 29.95% to lead Petrochemicals, which averaged 9.64%. Holding Companies followed at 9.24%, led by Woory Industrial Holdings at 29.91%.

Cybersecurity returned after a 21-day gap, with an average change of 8.34%. Its leader, CyberOne, rose 23.98%.

Today’s Strong Themes at a Glance

#	Theme	Status	Avg. change	Up/Total	Leader
1	Battery	recurred after 2 days	+11.0%	10/10	Zaigle
2	Petrochemicals	recurred after 6 days	+9.6%	10/10	Isu Chemical
3	Holding Companies	recurred after 7 days	+9.2%	10/10	Woory Industrial Holdings
4	Cybersecurity	recurred after 21 days	+8.3%	10/10	CyberOne
5	EV	recurred after 5 days	+7.8%	10/10	Wonik Pne
6	Shipping	2 days running	+4.1%	6/6	Heung-a Shipping
7	Steel (Small & Mid Cap)	2 days running	+4.0%	10/10	Finebesteel
8	Quantum Cryptography & Computing	recurred after 8 days	+3.5%	9/9	HanWool Materials Science

Theme by Theme

1. Battery (recurred after 2 days)

Episode: started 2025-10-22, day 1

Stock	Change	Close	Leader
Duksan Techopia `317330`	+15.3%	22,650
Ecopro `086520`	+15.2%	87,400
LG Chem `051910`	+13.0%	391,000
Zaigle `234920`	+12.9%	5,630	★
Korea Petro Chemical Ind `006650`	+11.2%	133,500
Kga `455180`	+10.6%	6,150
Wonik Pne `217820`	+8.5%	3,690
mPlus `259630`	+8.5%	15,800
Top Material `360070`	+7.7%	27,250
Ecopro Materials `450080`	+7.4%	69,500

2. Petrochemicals (recurred after 6 days)

Episode: started 2025-10-22, day 1

Stock	Change	Close	Leader
Isu Chemical `005950`	+29.9%	7,550	★
SK Chemicals `285130`	+13.1%	68,900
LG Chem `051910`	+13.0%	391,000
Korea Petro Chemical Ind `006650`	+11.2%	133,500
TK Chemical `104480`	+7.1%	1,692
Kolon Industries `120110`	+6.5%	37,750
Lotte Chemical `011170`	+6.5%	75,900
Kumho Petro Chemical `011780`	+4.5%	116,500
Samyang `145990`	+2.4%	52,100
Aekyung Chemical `161000`	+2.2%	10,800

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3. Holding Companies (recurred after 7 days)

Episode: started 2025-10-22, day 1

Stock	Change	Close	Leader
Woory Industrial Holdings `072470`	+29.9%	4,495	★
Ecopro `086520`	+15.2%	87,400
LS Eco Energy `229640`	+7.3%	46,150
Hyosung `004800`	+6.2%	105,400
SeAH Besteel Holdings `001430`	+5.9%	26,950
Hanwha `000880`	+5.8%	96,100
GS Holdings `078930`	+5.8%	48,950
Doosan `000150`	+5.6%	791,000
HD Korea Shipbuilding & Offshore Engineering `009540`	+5.4%	462,000
Kolon `002020`	+5.2%	49,200

4. Cybersecurity (recurred after 21 days)

Episode: started 2025-10-22, day 1

Stock	Change	Close	Leader
CyberOne `356890`	+24.0%	5,170	★
S2W `488280`	+10.1%	21,250
Genians `263860`	+7.8%	24,300
Bellock `424760`	+7.7%	1,120
Monitorapp `434480`	+7.2%	4,460
Hanssak `430690`	+6.7%	6,200
SGA Solutions `184230`	+6.7%	720
Softcamp `258790`	+6.1%	1,391
Aton `158430`	+3.7%	7,310
Hunesion `290270`	+3.5%	3,965

5. EV (recurred after 5 days)

Episode: started 2025-10-22, day 1

Stock	Change	Close	Leader
LG Chem `051910`	+13.0%	391,000
Sungho Electronics `043260`	+11.7%	1,573
Wonik Pne `217820`	+8.5%	3,690	★
mPlus `259630`	+8.5%	15,800
Sewon `234100`	+8.0%	1,287
A-jin Industry `013310`	+6.3%	3,520
HT Robotics `396300`	+5.8%	3,660
Motivelink `463480`	+5.7%	11,350
Woory Industrial `215360`	+5.3%	8,930
Hankook & Company `000240`	+4.8%	24,150

6. Shipping (2 days running)

Episode: started 2025-10-21, day 2

Stock	Change	Close	Leader
Heung-a Shipping `003280`	+7.8%	1,826	★
Pan Ocean `028670`	+5.3%	3,990
Korea Line `005880`	+4.9%	1,743
HMM `011200`	+3.2%	20,850
STX Green Logis `465770`	+2.1%	7,350
KSS Line `044450`	+1.5%	9,520

7. Steel (Small & Mid Cap) (2 days running)

Episode: started 2025-10-21, day 2

Stock	Change	Close	Leader
Finebesteel `133820`	+8.0%	2,375	★
Histeel `071090`	+5.5%	4,525
Husteel `005010`	+4.6%	4,290
Dongkuk Industries Company `005160`	+3.9%	3,220
TCC Steel `002710`	+3.7%	19,900
Nexteel `092790`	+3.7%	12,390
KBI Dong Yang Steel Pipe `008970`	+3.6%	2,715
Ust `263770`	+2.7%	2,035
Dong Il Steel MFG `002690`	+2.2%	1,646
MH Materials `001080`	+1.8%	51,200

8. Quantum Cryptography & Computing (recurred after 8 days)

Episode: started 2025-10-22, day 2

Stock	Change	Close	Leader
HanWool Materials Science `091440`	+9.2%	2,730	★
Korea Computer & Systems `115500`	+4.1%	11,190
Aton `158430`	+3.7%	7,310
Ictk `456010`	+3.3%	15,290
Axgate `356680`	+3.1%	8,230
RaonSecure `042510`	+2.8%	10,370
Coweaver `056360`	+1.9%	5,830
Solid `050890`	+1.8%	6,920
Wooriro `046970`	+1.6%	1,330

Closing Thoughts

Shipping and Steel (Small & Mid Cap) are the only themes on a 2-day streak, averaging 4.12% and 3.96%. The next session will show whether that run extends.

The other six themes came back after gaps of 2 to 21 days, and each is on a 1-day streak. Several stocks appear in more than one theme: LG Chem, up 13.01%, shows up in three of them.