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KOSDAQ (Korea): top gainers and losers today

On the 19 Oct 2026 close, 880 stocks rose, 380 fell and 62 were unchanged on the KOSDAQ (Korea) (67% advancing). The biggest gainer was Gentrogroup Co. Ltd. (083660) at +29.97%, the biggest loser was Foodnamoo. Inc (290720) at −30.00%, and the most traded stock by value was JUSUNG ENGINEERING Co. Ltd (036930). Prices are in KRW. Stocks under 1 KRW, very thin trading and moves above 60% (usually data glitches or corporate actions) are left out.

Top gainers on the KOSDAQ today

#	Company	Price (KRW)	Change	Volume	Traded value	RSI
1	083660 Gentrogroup Co. Ltd.	1,531.00	+29.97%	688,054	1,053.4M	54
2	012340 Nuintek Co.Ltd	878.00	+29.88%	8,847,017	7,767.7M	68
3	419050 Samkee EV Co. Ltd.	2,695.00	+25.64%	52,385,863	141,179.9M	75
4	354320 ALMAC Co. Ltd.	62,600.00	+20.85%	420,999	26,354.5M	69
5	088280 SAWNICS Inc.	4,585.00	+19.40%	2,463,673	11,295.9M	75
6	106240 Finetechnix. Co.Ltd	1,305.00	+17.99%	174,777	228.1M	56
7	424760 IBKS No. 18 Special Purpose Acquisition Co. Ltd.	2,140.00	+16.81%	321,945	689.0M	50
8	107640 HanJung Natural Connectivity System.co.,Ltd	48,600.00	+15.99%	319,636	15,534.3M	61
9	900300 Organic Tea Cosmetics Holdings Company Limited	2,880.00	+15.20%	746,705	2,150.5M	50
10	446440 446440	18,910.00	+14.95%	307	5.8M	68
11	023790 Dongil Steel Co. Ltd	1,635.00	+14.82%	7,099,620	11,607.9M	57
12	214680 DRTECH Corporation	3,735.00	+13.53%	2,115,257	7,900.5M	47
13	278650 KNOTUS Co.Ltd	6,000.00	+13.42%	1,442,325	8,654.0M	68
14	225190 LK Samyang Co., Ltd	4,295.00	+13.03%	1,439,634	6,183.2M	51
15	024950 Samchuly Bicycle Co. Ltd	4,575.00	+12.68%	172,497	789.2M	65
16	464500 Iron Device Corporation	1,720.00	+12.64%	32,577	56.0M	55
17	050110 CammSys Corp	5,620.00	+12.63%	296,528	1,666.5M	59
18	140430 Catis. Inc.	2,425.00	+12.53%	751,708	1,822.9M	54
19	393890 W-SCOPE CHUNGJU PLANT LTD (PROPOSE	10,570.00	+12.33%	672,593	7,109.3M	53
20	142760 Bioleaders Corporation	584.00	+12.31%	3,354,169	1,958.8M	56
21	091580 Sangsin Energy Display Precision Co.Ltd	26,250.00	+12.18%	565,071	14,833.1M	63
22	095270 Wave Electronics Co. Ltd	4,955.00	+11.98%	164,739	816.3M	67
23	243840 Shin Heung Energy & Electronics Co.Ltd	6,990.00	+11.84%	1,067,452	7,461.5M	67
24	378340 Philenergy Co. Ltd.	12,890.00	+11.80%	85,608	1,103.5M	58
25	323280 Shinyoung HappyTomorrow No.5 Special Purpose Acquisition Company	58,900.00	+11.34%	466,583	27,481.7M	58

Top losers on the KOSDAQ today

#	Company	Price (KRW)	Change	Volume	Traded value	RSI
1	290720 Foodnamoo. Inc	2,170.00	−30.00%	407,392	884.0M	28
2	278990 278990	2,700.00	−14.96%	38	0.1M	39
3	227420 227420	655.00	−14.94%	211	0.1M	44
4	288980 Moadata Co. Ltd.	204.00	−14.64%	10,672,532	2,177.2M	39
5	140660 140660	604.00	−13.84%	50	0.0M	35
6	043590 Clover Hitechnology Co. Ltd.	1,890.00	−13.30%	159,029	300.6M	54
7	078350 Hanyang Digitech Co. Ltd	34,350.00	−11.70%	598,108	20,545.0M	57
8	115180 Qurient Co. Ltd	19,300.00	−10.23%	125,255	2,417.4M	40
9	060260 Nuvotec	902.00	−9.89%	314,395	283.6M	48
10	336040 336040	3,700.00	−9.76%	47	0.2M	44
11	250930 YeSUN Tech Co.Ltd.	1,463.00	−9.41%	4,991,397	7,302.4M	53
12	061040 RFTech Co. Ltd	6,250.00	−9.02%	59,259	370.4M	29
13	232530 232530	9,100.00	−9.00%	940	8.6M	32
14	051780 Curo Holdings Co. Ltd	2,400.00	−8.92%	16,188	38.9M	47
15	110020 Jeonjinbio Co. Ltd	2,045.00	−8.50%	26,111	53.4M	48
16	270520 GEOLIT ENERGY COLTD LTD	729.00	−8.42%	727,004	530.0M	18
17	041960 Komipharm International Co. Ltd	9,930.00	−8.39%	520,890	5,172.4M	47
18	035620 Barunson Entertainment & Arts Corporation	677.00	−8.02%	895,517	606.3M	48
19	185190 185190	920.00	−8.00%	12	0.0M	48
20	900120 CKH Food & Health Limited	3,360.00	−7.95%	26,109	87.7M	36
21	314130 Genome & Company	4,340.00	−7.76%	448,004	1,944.3M	48
22	317240 TS Trillion Co., Ltd.	1,164.00	−7.69%	10,506,735	12,229.8M	60
23	069920 ISE Commerce Company Limited	1,290.00	−7.66%	227,026	292.9M	52
24	101000 Sangsangin Industry Co. Ltd.	1,101.00	−7.63%	90,674	99.8M	39
25	448780 448780	678.00	−7.12%	1,037	0.7M	42

Most active stocks on the KOSDAQ by traded value

#	Company	Price (KRW)	Change	Volume	Traded value	RSI
1	036930 JUSUNG ENGINEERING Co. Ltd	209,500.00	−0.48%	1,301,289	272,620.0M	47
2	396300 SeA Mechanics Co. Ltd.	9,120.00	+1.22%	16,857,078	153,736.6M	83
3	419050 Samkee EV Co. Ltd.	2,695.00	+25.64%	52,385,863	141,179.9M	75
4	105560 KB Financial Group Inc	162,700.00	+1.69%	649,795	105,721.6M	43
5	403870 Hpsp Co Ltd	52,600.00	−2.77%	1,947,234	102,424.5M	44
6	086520 Ecopro Co. Ltd	90,400.00	+11.19%	1,069,516	96,684.2M	56
7	012330 Hyundai Mobis Co Ltd	365,500.00	+3.69%	227,238	83,055.5M	43
8	222800 SIMMTECH Co. Ltd	126,700.00	+0.08%	640,273	81,122.6M	42
9	240810 Wonik Ips Co. Ltd	108,500.00	−0.46%	668,803	72,565.1M	41
10	003230 Sam Yang Foods Co Ltd	1,250,000.00	+1.71%	51,875	64,843.8M	52
11	196170 ALTEOGEN Inc	239,000.00	+2.14%	264,953	63,323.8M	43
12	080220 Jeju Semiconductor Corp	69,200.00	+0.73%	854,898	59,158.9M	43
13	440110 FADU Inc.	54,800.00	−4.20%	1,076,183	58,974.8M	34
14	452280 Hansun Engineering Co., Ltd.	17,010.00	+0.83%	3,439,319	58,502.8M	66
15	067310 HANA Micron Inc	39,450.00	−3.43%	1,466,012	57,834.2M	43
16	046970 Wooriro Co. Ltd	8,380.00	−3.90%	6,762,469	56,669.5M	59
17	178320 Seojin System Co.Ltd	40,750.00	+2.64%	1,378,109	56,157.9M	56
18	131970 Tesna Inc	110,000.00	−3.93%	487,389	53,612.8M	54
19	247540 Ecopro BM. Co. Ltd	115,800.00	+8.33%	457,423	52,969.6M	52
20	058470 LEENO Industrial Inc	69,400.00	−1.98%	726,135	50,393.8M	44
21	078600 Daejoo Electronic Materials Co. Ltd	112,600.00	+9.11%	406,650	45,788.8M	61
22	043260 Sungho Electronics Corp	26,850.00	−0.56%	1,607,445	43,159.9M	53
23	039030 EO Technics Co. Ltd	437,500.00	−2.34%	98,580	43,128.8M	44
24	039610 HS Valve Co. Ltd	8,120.00	+10.33%	5,097,462	41,391.4M	69
25	079650 Seosan Corporation	8,130.00	+1.25%	5,009,792	40,729.6M	60

KOSDAQ gainers and losers: common questions

Which stocks are the top gainers on the KOSDAQ today?

At the 19 Oct 2026 close the biggest gainers on the KOSDAQ (Korea) were Gentrogroup Co. Ltd. (083660) +29.97%, Nuintek Co.Ltd (012340) +29.88%, Samkee EV Co. Ltd. (419050) +25.64%.

Which stocks are the top losers on the KOSDAQ today?

At the 19 Oct 2026 close the biggest losers were Foodnamoo. Inc (290720) −30.00%, 278990 (278990) −14.96%, 227420 (227420) −14.94%.

How many stocks rose or fell on the KOSDAQ?

Of the 1,322 stocks with a usable price move on 19 Oct 2026, 880 rose, 380 fell and 62 were unchanged (67% advancing).

How often is this list updated, and what is left out?

It is rebuilt after each market close from end-of-day prices, so it is not live. Stocks priced under 1 KRW, stocks that barely trade and moves above 60% (usually data glitches or corporate actions such as splits) are left out.

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End-of-day data in the market's own currency. Educational only, not financial advice.