Korean company earnings: Q1 2026

Rankings built from quarterly, half-year and annual reports filed by KOSPI and KOSDAQ companies on DART.

Companies2,545

Operating profit, YoY+140.9%2,537 comparable

Back to profit242

Swung to loss196

Results for Q1 2026 from 2,545 Korean listed companies, based on periodic reports filed on DART. Combined operating profit of the 2,537 companies with year-earlier figures was ₩182.2tn, up 140.9% year on year. 242 companies returned to an operating profit and 196 swung to a loss. Samsung Electronics posted the largest operating profit (₩57.2tn).

Largest operating profit

#	Company	Revenue	Operating profit	YoY
1	Samsung Electronics KOSPI	₩133.9tn	₩57.2tn	+756.1%
2	SK hynix KOSPI	₩52.6tn	₩37.6tn	+405.5%
3	SK Square KOSPI	₩300bn	₩8.28tn	+401.0%
4	Korea Electric Power KOSPI	₩24.4tn	₩3.78tn	+0.8%
5	SK KOSPI	₩36.8tn	₩3.67tn	+818.8%
6	HD Hyundai KOSPI	₩19.6tn	₩2.83tn	+120.4%
7	KB Financial Group KOSPI	–	₩2.73tn	+19.0%
8	Hyundai Motor KOSPI	₩45.9tn	₩2.51tn	-30.8%
9	Kia KOSPI	₩29.5tn	₩2.21tn	-26.7%
10	SK Innovation KOSPI	₩24.2tn	₩2.16tn	Back to profit
11	Shinhan Financial Group KOSPI	–	₩2.15tn	+10.8%
12	LG Electronics KOSPI	₩23.7tn	₩1.67tn	+32.9%
13	Hana Financial Group KOSPI	–	₩1.65tn	+11.1%
14	Mirae Asset Securities KOSPI	₩14.4tn	₩1.38tn	+297.2%
15	Samsung Life Insurance KOSPI	–	₩1.36tn	+80.1%
16	HD Korea Shipbuilding & Offshore Engineering KOSPI	₩8.14tn	₩1.36tn	+57.8%
17	Hanwha KOSPI	₩21.5tn	₩1.27tn	+18.1%
18	GS Holdings KOSPI	₩6.84tn	₩1.26tn	+57.3%
19	S-Oil KOSPI	₩8.94tn	₩1.23tn	Back to profit
20	Korea Investment Holdings KOSPI	–	₩1.11tn	+108.9%
21	Industrial Bank of Korea KOSPI	–	₩933bn	-8.9%
22	KoreaGas KOSPI	₩11.8tn	₩910bn	+9.1%
23	HD Hyundai Heavy Industries KOSPI	₩5.92tn	₩905bn	+108.7%
24	Samsung Fire & Marine Insurance KOSPI	–	₩861bn	+8.7%
25	Meritz Financial Group KOSPI	–	₩855bn	+18.4%
26	Woori Financial Group KOSPI	–	₩808bn	-7.0%
27	Hyundai Mobis KOSPI	₩15.6tn	₩803bn	+3.3%
28	Korea Zinc KOSPI	₩6.07tn	₩746bn	+175.2%
29	Samsung C&T KOSPI	₩10.5tn	₩720bn	-0.6%
30	POSCO Holdings KOSPI	₩17.9tn	₩707bn	+24.3%

Fastest operating profit growth vs. same quarter last year

#	Company	Revenue	Operating profit	YoY
1	Ecopro KOSDAQ	₩818bn	₩56.4bn	+4004.4%
2	NC KOSPI	₩557bn	₩113bn	+2070.1%
3	Jeju Semiconductor KOSDAQ	₩180bn	₩67.1bn	+1714.1%
4	Samt KOSDAQ	₩1.80tn	₩327bn	+1575.2%
5	VM KOSDAQ	₩88.9bn	₩30.1bn	+1503.6%
6	Tse KOSDAQ	₩151bn	₩42.0bn	+1247.0%
7	Samji Electronics KOSDAQ	₩1.90tn	₩334bn	+1240.3%
8	Eugene Investment & Securities KOSPI	₩1.07tn	₩66.6bn	+1033.1%
9	ST Pharm KOSDAQ	₩67.0bn	₩11.5bn	+1024.6%
10	Chinhung International KOSPI	₩184bn	₩11.1bn	+835.7%
11	Ecopro BM KOSDAQ	₩605bn	₩20.9bn	+822.6%
12	SK KOSPI	₩36.8tn	₩3.67tn	+818.8%
13	Samsung Electronics KOSPI	₩133.9tn	₩57.2tn	+756.1%
14	kakaopay KOSPI	₩300bn	₩32.2bn	+630.9%
15	Hanwha Galleria KOSPI	₩126bn	₩12.3bn	+573.7%
16	Jaeyoung Solutec KOSDAQ	₩58.1bn	₩9.1bn	+561.6%
17	Hwashin Precision KOSDAQ	₩121bn	₩12.2bn	+557.7%
18	Cape Industries KOSDAQ	₩188bn	₩28.2bn	+552.7%
19	Kolmar Holdings KOSPI	₩152bn	₩20.4bn	+549.8%
20	LX Hausys KOSPI	₩815bn	₩45.9bn	+549.7%
21	HanaMicron KOSDAQ	₩508bn	₩72.0bn	+513.6%
22	Mirai Semiconductors KOSDAQ	₩341bn	₩32.2bn	+496.8%
23	TLB KOSDAQ	₩75.8bn	₩10.7bn	+472.1%
24	Yuanta Securities Korea KOSPI	₩1.72tn	₩72.8bn	+464.1%
25	Sempio Company KOSPI	₩103bn	₩6.6bn	+444.9%
26	Techwing KOSDAQ	₩52.4bn	₩9.7bn	+444.0%
27	Semcns KOSDAQ	₩27.2bn	₩7.7bn	+436.9%
28	Protec KOSDAQ	₩62.4bn	₩15.4bn	+428.3%
29	THN KOSPI	₩276bn	₩17.5bn	+417.4%
30	SK hynix KOSPI	₩52.6tn	₩37.6tn	+405.5%

Fastest revenue growth vs. same quarter last year

#	Company	Revenue	Revenue YoY	Operating profit
1	Showbox KOSDAQ	₩78.9bn	+572.0%	₩21.7bn
2	M eighty-three KOSDAQ	₩66.9bn	+517.7%	−₩2.6bn
3	Samyoung M-tek C0 KOSDAQ	₩131bn	+397.0%	₩5.6bn
4	VM KOSDAQ	₩88.9bn	+396.4%	₩30.1bn
5	LS Securities KOSDAQ	₩1.64tn	+343.2%	₩39.2bn
6	KD KOSDAQ	₩45.9bn	+329.7%	₩6.0bn
7	PearlAbyss KOSDAQ	₩328bn	+292.5%	₩212bn
8	LS Networks KOSPI	₩1.70tn	+283.8%	₩43.3bn
9	Jeju Semiconductor KOSDAQ	₩180bn	+272.6%	₩67.1bn
10	Korea Information Engineering Services KOSDAQ	₩171bn	+268.8%	₩1.1bn
11	Asicland KOSDAQ	₩54.0bn	+242.4%	−₩3.0bn
12	Fadu KOSDAQ	₩59.5bn	+209.8%	₩7.7bn
13	SK hynix KOSPI	₩52.6tn	+198.1%	₩37.6tn
14	Mirae Asset Venture Investment KOSDAQ	₩53.7bn	+191.4%	₩15.1bn
15	Eugene Investment & Securities KOSPI	₩1.07tn	+164.6%	₩66.6bn
16	Ggumbi KOSDAQ	₩31.6bn	+164.5%	−₩239m
17	W-scope Chungju Plant KOSDAQ	₩42.9bn	+162.8%	−₩20.5bn
18	KIWOOM Securities KOSPI	₩9.40tn	+156.7%	₩621bn
19	Hanyang Securities KOSPI	₩511bn	+155.3%	₩26.0bn
20	HD Construction Equipment KOSPI	₩2.30tn	+154.2%	₩191bn
21	Daou Technology KOSPI	₩9.48tn	+153.0%	₩641bn
22	Iljin Hysolus KOSPI	₩27.1bn	+148.7%	−₩2.0bn
23	Daou Data KOSDAQ	₩9.64tn	+148.6%	₩647bn
24	Bookook Securities KOSPI	₩480bn	+148.2%	₩15.6bn
25	DB Securities KOSPI	₩1.08tn	+145.9%	₩30.2bn
26	FNC Entertainment KOSDAQ	₩27.2bn	+139.9%	₩803m
27	Mirae Asset Securities KOSPI	₩14.4tn	+138.4%	₩1.38tn
28	SemiFive KOSDAQ	₩47.9bn	+136.8%	₩105m
29	Samt KOSDAQ	₩1.80tn	+134.9%	₩327bn
30	Bosung Power Technology KOSDAQ	₩40.9bn	+134.1%	₩6.0bn

Returned to operating profit

#	Company	Revenue	Operating profit	YoY
1	SK Innovation KOSPI	₩24.2tn	₩2.16tn	Back to profit
2	S-Oil KOSPI	₩8.94tn	₩1.23tn	Back to profit
3	PearlAbyss KOSDAQ	₩328bn	₩212bn	Back to profit
4	L&F KOSPI	₩740bn	₩117bn	Back to profit
5	Korea Petro Chemical IND KOSPI	₩847bn	₩73.6bn	Back to profit
6	Lotte Chemical KOSPI	₩4.99tn	₩73.5bn	Back to profit
7	Jejuair KOSPI	₩516bn	₩69.0bn	Back to profit
8	AK Holdings KOSPI	₩938bn	₩67.2bn	Back to profit
9	Daeduck KOSPI	₩443bn	₩53.3bn	Back to profit
10	Daeduck Electronics KOSPI	₩346bn	₩51.3bn	Back to profit
11	Youngpoong KOSPI	₩851bn	₩43.3bn	Back to profit
12	Woongjin KOSPI	₩303bn	₩31.7bn	Back to profit
13	HD Hyundai Energy Solutions KOSPI	₩160bn	₩29.0bn	Back to profit
14	Korea Circuit KOSPI	₩420bn	₩26.4bn	Back to profit
15	Showbox KOSDAQ	₩78.9bn	₩21.7bn	Back to profit
16	Hotel Shilla KOSPI	₩1.05tn	₩20.4bn	Back to profit
17	Trinity Airways KOSPI	₩612bn	₩19.2bn	Back to profit
18	Elentec KOSDAQ	₩235bn	₩17.5bn	Back to profit
19	Hyundai Steel Company KOSPI	₩5.74tn	₩15.7bn	Back to profit
20	Ecopro Materials KOSPI	₩167bn	₩15.7bn	Back to profit
21	MKElectron KOSDAQ	₩450bn	₩15.1bn	Back to profit
22	Mirae Asset Venture Investment KOSDAQ	₩53.7bn	₩15.1bn	Back to profit
23	Seers KOSDAQ	₩32.5bn	₩13.9bn	Back to profit
24	Simmtech KOSDAQ	₩422bn	₩13.7bn	Back to profit
25	Device KOSDAQ	₩31.1bn	₩12.3bn	Back to profit
26	Eugene KOSDAQ	₩335bn	₩11.8bn	Back to profit
27	Xi S&D KOSPI	₩270bn	₩11.3bn	Back to profit
28	Wonik IPS KOSDAQ	₩165bn	₩10.7bn	Back to profit
29	BH KOSPI	₩372bn	₩10.7bn	Back to profit
30	Seoul Viosys KOSDAQ	₩188bn	₩10.4bn	Back to profit

Swung to operating loss

#	Company	Revenue	Operating profit	YoY
1	LG Energy Solution KOSPI	₩6.55tn	−₩208bn	-155.4%
2	HYBE KOSPI	₩698bn	−₩197bn	-1009.1%
3	E1 KOSPI	₩3.59tn	−₩156bn	-248.4%
4	Asiana Airlines KOSPI	₩1.68tn	−₩52.4bn	-194.5%
5	LG Chem KOSPI	₩12.2tn	−₩49.7bn	-111.1%
6	LigaChem Biosciences KOSDAQ	₩35.9bn	−₩37.4bn	-428.9%
7	Seojin System KOSDAQ	₩280bn	−₩33.0bn	-258.0%
8	Zinus KOSPI	₩140bn	−₩30.1bn	-209.4%
9	Lotte Non-Life Insurance KOSPI	–	−₩28.5bn	-318.7%
10	SK Chemicals KOSPI	₩656bn	−₩18.9bn	-177.8%
11	Devsisters KOSDAQ	₩58.5bn	−₩17.4bn	-284.7%
12	NE Neungyule KOSDAQ	₩2.0bn	−₩12.1bn	Swung to loss
13	Robotis KOSDAQ	₩11.8bn	−₩11.8bn	Swung to loss
14	Taekwang Industrial KOSPI	₩533bn	−₩11.4bn	-521.1%
15	SK D&D KOSPI	₩70.3bn	−₩9.3bn	-230.9%
16	Hands KOSPI	₩181bn	−₩9.1bn	Swung to loss
17	Binex KOSDAQ	₩35.3bn	−₩9.0bn	Swung to loss
18	DMS KOSDAQ	₩13.8bn	−₩8.6bn	-168.9%
19	Ilyang Pharmaceutical KOSPI	₩65.1bn	−₩7.4bn	-317.8%
20	Jusung Engineering KOSDAQ	₩54.9bn	−₩7.0bn	-120.7%
21	Sammok S-form KOSDAQ	₩73.3bn	−₩6.1bn	-187.5%
22	Wonik Pne KOSDAQ	₩27.3bn	−₩6.1bn	-167.3%
23	WOOREE E&L Haroutine KOSDAQ	₩23.0bn	−₩5.8bn	Swung to loss
24	Nextin KOSDAQ	₩7.9bn	−₩5.5bn	-262.5%
25	Ontide KOSPI	₩56.7bn	−₩5.5bn	-254.6%
26	Daejin Advanced Materials KOSDAQ	₩26.3bn	−₩4.9bn	-439.1%
27	Hwaseung Enterprise KOSPI	₩351bn	−₩4.8bn	-136.1%
28	Top Run Total Solution KOSDAQ	₩147bn	−₩4.8bn	-403.0%
29	Smec KOSDAQ	₩29.2bn	−₩4.8bn	-212.9%
30	Hyulim ROBOT KOSDAQ	₩30.0bn	−₩4.6bn	Swung to loss

Key accounts from DART periodic reports (consolidated where available). Q4 is derived as full-year minus nine-month figures. Growth rankings only include companies with year-earlier revenue of at least ₩10bn or operating profit of at least ₩1bn. Reports with suspected unit errors are excluded. Not investment advice.