YEST (KRX: 122640)
Who is buying YEST?
Between Sep 10, 2026 and Oct 13, 2026 (20 trading sessions), foreign investors net bought ₩7.3bn ($5M) of YEST, the 54th largest foreign net purchase among 1828 KOSDAQ stocks. Institutions net sold ₩5.4bn ($4M) and retail investors net sold ₩1.8bn ($1M) over the same window. Foreigners were net buyers on 13 of the 20 sessions.
Foreign investors hold 6.21% of YEST's listed shares (KRX ownership data as of Oct 13, 2026), up from 4.66% twenty sessions earlier and 3.53% a year ago.
The stock closed at ₩31,250 on Oct 13, 2026: -0.32% over 20 sessions, +75.56% year-to-date, +53.94% over one year. The 52-week range is ₩15,200 – ₩44,000.
At ₩31,250 the stock trades at 37.03× current-fiscal-year consensus earnings.
View chart data as a table
| Date | Close | Foreign net | Institutions | Retail |
|---|---|---|---|---|
| 2026-10-13 | ₩31,250 | ₩-0.5bn | +₩0.9bn | ₩-0.5bn |
| 2026-10-12 | ₩31,000 | +₩1.2bn | +₩0.1bn | ₩-1.3bn |
| 2026-10-08 | ₩32,200 | +₩0.3bn | +₩0.1bn | ₩-0.4bn |
| 2026-10-07 | ₩31,800 | +₩1.4bn | ₩-2.6bn | +₩1.1bn |
| 2026-10-06 | ₩33,800 | ₩-1.8bn | +₩0.2bn | +₩1.5bn |
| 2026-10-02 | ₩33,400 | +₩1.4bn | ₩-0.6bn | ₩-0.8bn |
| 2026-10-01 | ₩34,500 | +₩1.6bn | ₩-2.1bn | +₩0.6bn |
| 2026-09-30 | ₩33,600 | +₩1.5bn | +₩0.2bn | ₩-1.6bn |
| 2026-09-29 | ₩32,550 | +₩0.2bn | +₩0.1bn | ₩-0.3bn |
| 2026-09-28 | ₩31,600 | +₩0.1bn | ₩-0.2bn | +₩0.8bn |
| 2026-09-23 | ₩32,000 | ₩-0.3bn | ₩-0.0bn | +₩0.3bn |
| 2026-09-22 | ₩31,400 | +₩1.2bn | ₩-0.5bn | ₩-0.7bn |
| 2026-09-21 | ₩32,500 | +₩6.2bn | ₩-2.2bn | ₩-4.6bn |
| 2026-09-18 | ₩29,450 | ₩-2.9bn | ₩-0.0bn | +₩2.7bn |
| 2026-09-17 | ₩29,000 | ₩-0.0bn | +₩0.7bn | ₩-0.7bn |
| 2026-09-16 | ₩28,750 | +₩0.9bn | ₩-0.9bn | ₩-0.1bn |
| 2026-09-15 | ₩28,350 | +₩0.1bn | +₩0.0bn | ₩-0.1bn |
| 2026-09-14 | ₩28,750 | +₩0.2bn | +₩0.2bn | ₩-0.4bn |
| 2026-09-11 | ₩30,050 | ₩-1.2bn | ₩-0.1bn | +₩1.3bn |
| 2026-09-10 | ₩31,150 | ₩-2.6bn | +₩1.5bn | +₩1.2bn |
| 2026-09-09 | ₩31,350 | ₩-0.1bn | +₩3.0bn | ₩-2.9bn |
| 2026-09-08 | ₩29,000 | +₩1.1bn | +₩3.5bn | ₩-4.6bn |
| 2026-09-07 | ₩27,450 | ₩-2.4bn | +₩1.3bn | +₩1.1bn |
| 2026-09-04 | ₩27,150 | ₩-1.6bn | +₩2.2bn | ₩-0.7bn |
| 2026-09-03 | ₩26,850 | ₩-0.2bn | +₩0.4bn | ₩-0.3bn |
| 2026-09-02 | ₩27,000 | +₩2.3bn | +₩0.3bn | +₩0.2bn |
| 2026-09-01 | ₩28,700 | ₩-2.5bn | +₩2.7bn | +₩0.2bn |
| 2026-08-31 | ₩29,600 | ₩-2.9bn | +₩2.7bn | +₩0.3bn |
| 2026-08-28 | ₩30,200 | +₩0.6bn | +₩4.0bn | ₩-4.7bn |
| 2026-08-27 | ₩28,650 | +₩2.6bn | ₩-1.1bn | ₩-1.4bn |
| 2026-08-26 | ₩27,800 | ₩-1.8bn | ₩-1.2bn | +₩3.3bn |
| 2026-08-25 | ₩29,850 | ₩-0.6bn | +₩0.9bn | ₩-0.3bn |
| 2026-08-24 | ₩28,450 | ₩-0.7bn | +₩0.4bn | +₩0.2bn |
| 2026-08-21 | ₩29,550 | ₩-2.5bn | +₩2.9bn | ₩-0.3bn |
| 2026-08-20 | ₩28,850 | ₩-2.0bn | +₩2.3bn | ₩-0.6bn |
| 2026-08-19 | ₩28,000 | +₩0.5bn | +₩0.1bn | ₩-0.9bn |
| 2026-08-18 | ₩27,500 | +₩1.1bn | ₩-0.5bn | ₩-0.8bn |
| 2026-08-14 | ₩28,700 | +₩1.0bn | +₩0.7bn | ₩-2.1bn |
| 2026-08-13 | ₩29,100 | ₩-1.6bn | +₩0.8bn | +₩0.3bn |
| 2026-08-12 | ₩27,400 | ₩-3.9bn | +₩0.9bn | +₩0.2bn |
| 2026-08-11 | ₩25,100 | ₩-0.1bn | +₩0.0bn | ₩-1.4bn |
| 2026-08-10 | ₩22,000 | +₩0.6bn | ₩-0.0bn | ₩-0.5bn |
| 2026-08-07 | ₩20,400 | ₩-0.4bn | ₩-0.6bn | +₩0.9bn |
| 2026-08-06 | ₩21,400 | +₩0.1bn | ₩-1.0bn | +₩1.0bn |
| 2026-08-05 | ₩22,450 | ₩-0.2bn | +₩0.4bn | ₩-0.2bn |
| 2026-08-04 | ₩21,200 | ₩-2.1bn | ₩-0.1bn | +₩2.1bn |
| 2026-08-03 | ₩21,650 | ₩-1.2bn | ₩-0.1bn | +₩1.3bn |
| 2026-07-31 | ₩21,500 | +₩0.3bn | +₩1.0bn | ₩-1.3bn |
| 2026-07-30 | ₩17,200 | ₩-0.7bn | +₩0.1bn | +₩0.5bn |
| 2026-07-29 | ₩17,700 | ₩-0.1bn | ₩-0.6bn | +₩0.7bn |
| 2026-07-28 | ₩19,310 | +₩0.7bn | ₩-0.7bn | ₩-0.1bn |
| 2026-07-27 | ₩22,000 | +₩0.7bn | ₩-0.3bn | +₩0.3bn |
| 2026-07-24 | ₩21,750 | ₩-0.0bn | ₩-2.2bn | +₩3.2bn |
| 2026-07-23 | ₩24,650 | +₩0.2bn | ₩-0.5bn | +₩1.2bn |
| 2026-07-22 | ₩25,450 | ₩-0.4bn | ₩-0.4bn | +₩0.9bn |
| 2026-07-21 | ₩26,500 | ₩-1.8bn | +₩0.1bn | +₩1.6bn |
| 2026-07-20 | ₩25,750 | +₩5.5bn | ₩-0.7bn | ₩-4.8bn |
| 2026-07-16 | ₩28,750 | ₩-1.0bn | ₩-0.0bn | +₩1.0bn |
| 2026-07-15 | ₩31,400 | ₩-2.6bn | ₩-1.9bn | +₩4.2bn |
| 2026-07-14 | ₩31,850 | +₩0.3bn | +₩0.1bn | ₩-0.4bn |
| 2026-07-13 | ₩30,500 | ₩-0.6bn | +₩0.4bn | +₩0.3bn |
Investor flows summary
| Window | Foreign | (USD) | Institutions | Retail |
|---|---|---|---|---|
| 1 day | ₩-0.5bn | $-0M | +₩0.9bn | ₩-0.5bn |
| 5 days | +₩0.8bn | +$1M | ₩-1.4bn | +₩0.4bn |
| 20 days | +₩7.3bn | +$5M | ₩-5.4bn | ₩-1.8bn |
Positive = net buying, negative = net selling. Values aggregate the KRX main board and the NXT alternative venue.
Frequently asked questions
Are foreign investors buying YEST stock?
Over the last 5 sessions foreign investors net bought ₩0.8bn ($1M) of YEST; over 60 sessions they net sold ₩8.4bn ($6M); since Jan 1, 2026 they net sold ₩5.1bn ($4M). Over 20 sessions the stock is the 54th largest foreign net purchase among 1828 KOSDAQ stocks.
How much of YEST do foreign investors own?
Foreign investors own 6.21% of YEST's shares as of Oct 13, 2026, versus 3.53% one year earlier. The figure is KRX's daily foreign holdings divided by listed shares, and it reflects trades settled through the previous session.
Who is on the other side — institutions or retail investors?
Over 20 sessions institutions net sold ₩5.4bn ($4M) and retail investors net sold ₩1.8bn ($1M) of YEST. Foreign buying is being met mainly by retail selling.
Is YEST listed on KOSPI or KOSDAQ?
YEST (예스티) trades on KOSDAQ under KRX code 122640 in the Semiconductors group, with a market capitalization of ₩1T ($0.5B). Daily net flows by investor type are published by KRX after each session and combine the KRX main board with the NXT venue.
Annual financials
| Fiscal year | Revenue | YoY | Operating profit | Net income |
|---|---|---|---|---|
| 2023 | ₩80bn ($60M) | – | -₩0bn (-$0M) | -₩29bn (-$22M) |
| 2024 | ₩100bn ($75M) | +25.40% | ₩11bn ($8M) | ₩11bn ($8M) |
| 2025 | ₩87bn ($65M) | -13.00% | ₩4bn ($3M) | ₩1bn ($0M) |
Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1333.09/$) for reference only.