122640 - YEST Co., Ltd.

122640 Summary

Displays

Stock Price & Overview

₩27,150 +300 (+1.12%) Close · Sep 4, 2026 KST

KOSDAQ | ₩KRW | Close: ₩27,150 ≈ US$19 · Market cap ₩0.6tn (≈ $420m)

Every name gets a line. A US reader knows who AMD and Broadcom are. Almost nobody outside Korea knows what these companies make — so the table says so, in the row.

122640 Peer Comparison

Company	Price	1D	Market cap	Sector
PSK Holdings, Inc. 031980 PSK Holdings, Inc.	₩144,000	+11.2%	₩3.1tn	Displays
LG Display Co., Ltd. 034220 LG Display makes the screens that go inside other companies' products.	₩9,130	+1.0%	₩4.6tn	Displays
Protec Co., Ltd. 053610 Protec Co., Ltd.	₩60,000	+3.3%	₩0.5tn	Displays
Gem Vax & KAEL Co., Ltd. 082270 Gem Vax & KAEL Co., Ltd.	₩10,560	+1.8%	₩0.5tn	Displays
Global Standard Technology Co., Ltd. 083450 Global Standard Technology Co., Ltd.	₩43,000	+4.5%	₩0.8tn	Displays
Eugene Technology Co., Ltd. 084370 Eugene Technology Co., Ltd.	₩136,500	+4.4%	₩3.1tn	Displays
Techwing, Inc. 089030 Techwing, Inc.	₩47,100	+2.1%	₩1.7tn	Displays
VM, Inc. 089970 VM, Inc.	₩52,800	+1.7%	₩1.4tn	Displays
TES Co., Ltd. 095610 TES Co., Ltd.	₩146,800	+9.6%	₩2.8tn	Displays
Koh Young Technology, Inc. 098460 Koh Young Technology, Inc.	₩27,900	+1.3%	₩1.9tn	Displays
YEST Co., Ltd. 122640 YEST Co., Ltd.	₩27,150	+1.1%	₩0.6tn	Displays
Ko Mi Co., Ltd. 183300 Ko Mi Co., Ltd.	₩25,100	+3.3%	₩1.3tn	Displays
PSK, Inc. 319660 PSK, Inc.	₩126,500	+3.3%	₩3.7tn	Displays

Peers are companies kstock already covers in the same sector — the list grows as coverage does.

Similar to 122640

Symbol	Last Price
084370Eugene Technology Co., Ltd.	₩136,500 +4.4%
031980PSK Holdings, Inc.	₩144,000 +11.2%
095610TES Co., Ltd.	₩146,800 +9.6%
098460Koh Young Technology, Inc.	₩27,900 +1.3%
089030Techwing, Inc.	₩47,100 +2.1%
089970VM, Inc.	₩52,800 +1.7%
183300Ko Mi Co., Ltd.	₩25,100 +3.3%
083450Global Standard Technology Co., Ltd.	₩43,000 +4.5%
053610Protec Co., Ltd.	₩60,000 +3.3%
082270Gem Vax & KAEL Co., Ltd.	₩10,560 +1.8%

Compare all 13 in Displays

What a US investor should know

Trading hours09:00–15:30 KST — 20:00–02:30 US Eastern the night before.
Daily limitKorean stocks can move at most ±30% in a session before trading halts.
Getting exposureKRX shares are not directly tradable in most US brokerage accounts. The usual routes are Korea ETFs or an international account.
ReportingKorean issuers file to DART, not the SEC. Half-year and quarterly reports land about 45 days after period end.