Korean Stock Flows

Seojin System (KRX: 178320)

서진시스템 KOSDAQ Power & Energy 기타 전기장비 제조업
Close (Oct 13, 2026)
₩40,700
-1.45%
Market cap
₩3T ($1.9B)
52-week range
₩21,750 – ₩83,300
P/E (12M fwd) · P/B · Div yield
16.93 · 3.10 · 0%
trailing – · consensus of 2 analysts

Who is buying Seojin System?

Between Sep 10, 2026 and Oct 13, 2026 (20 trading sessions), foreign investors net sold ₩56.6bn ($42M) of Seojin System, the 15th largest foreign net sale among 1828 KOSDAQ stocks. Institutions net bought ₩32.2bn ($24M) and retail investors net bought ₩15.3bn ($11M) over the same window. Foreigners were net buyers on 3 of the 20 sessions.

Foreign investors hold 13.53% of Seojin System's listed shares (KRX ownership data as of Oct 13, 2026), down from 14.26% twenty sessions earlier and 8.23% a year ago.

The stock closed at ₩40,700 on Oct 13, 2026: +11.81% over 20 sessions, +60.87% year-to-date, +85.84% over one year. The 52-week range is ₩21,750 – ₩83,300.

At ₩40,700 the stock trades at 16.93× 12-month-forward consensus earnings (2 analysts), 12.84× on FY2027 estimates.

Seojin System share price, last 60 trading days (KRW)
43,853 38,234 32,616 26,997 Jul 13 Aug 26 Oct 13
Daily foreign investor net purchases, last 60 trading days
+18.7bn +9.4bn -9.4bn -18.7bn Jul 13 Aug 26 Oct 13
View chart data as a table
Date Close Foreign net Institutions Retail
2026-10-13 ₩40,700 ₩-0.3bn +₩1.7bn ₩-0.6bn
2026-10-12 ₩41,300 ₩-10.2bn +₩1.9bn +₩8.3bn
2026-10-08 ₩41,300 ₩-1.7bn +₩0.4bn +₩1.1bn
2026-10-07 ₩41,300 ₩-2.1bn +₩1.4bn +₩0.2bn
2026-10-06 ₩42,950 ₩-8.0bn +₩2.3bn +₩5.1bn
2026-10-02 ₩41,500 ₩-2.9bn ₩-0.8bn ₩-2.0bn
2026-10-01 ₩40,250 ₩-2.3bn +₩4.1bn ₩-2.9bn
2026-09-30 ₩38,400 ₩-7.7bn +₩4.4bn +₩1.7bn
2026-09-29 ₩36,950 ₩-7.2bn +₩6.9bn ₩-0.2bn
2026-09-28 ₩35,900 +₩9.7bn +₩1.6bn ₩-12.9bn
2026-09-23 ₩32,150 +₩0.2bn ₩-0.6bn ₩-0.2bn
2026-09-22 ₩31,500 ₩-0.9bn ₩-2.4bn +₩4.3bn
2026-09-21 ₩32,500 ₩-2.4bn ₩-1.2bn +₩4.6bn
2026-09-18 ₩33,850 ₩-1.4bn ₩-1.8bn +₩3.9bn
2026-09-17 ₩34,250 ₩-8.7bn ₩-0.3bn +₩8.8bn
2026-09-16 ₩35,900 ₩-0.4bn +₩2.8bn ₩-2.3bn
2026-09-15 ₩35,600 ₩-1.0bn +₩2.3bn ₩-1.7bn
2026-09-14 ₩34,900 +₩0.6bn +₩0.6bn ₩-1.4bn
2026-09-11 ₩35,750 ₩-3.0bn +₩1.3bn +₩2.0bn
2026-09-10 ₩36,750 ₩-7.0bn +₩7.3bn ₩-0.7bn
2026-09-09 ₩36,400 ₩-1.2bn +₩0.1bn +₩1.2bn
2026-09-08 ₩35,000 ₩-5.2bn ₩-1.8bn +₩6.6bn
2026-09-07 ₩36,600 +₩12.5bn +₩2.3bn ₩-16.0bn
2026-09-04 ₩33,650 ₩-0.9bn ₩-0.6bn +₩1.3bn
2026-09-03 ₩33,200 +₩0.6bn ₩-0.8bn +₩0.6bn
2026-09-02 ₩33,400 ₩-1.1bn ₩-7.5bn +₩9.2bn
2026-09-01 ₩36,800 ₩-8.7bn ₩-7.7bn +₩16.7bn
2026-08-31 ₩39,000 ₩-7.5bn +₩1.1bn +₩6.5bn
2026-08-28 ₩38,950 ₩-17.9bn +₩0.7bn +₩17.2bn
2026-08-27 ₩41,350 +₩12.6bn +₩20.4bn ₩-33.9bn
2026-08-26 ₩37,200 +₩5.1bn ₩-4.9bn ₩-0.1bn
2026-08-25 ₩38,400 ₩-1.6bn ₩-1.6bn +₩2.5bn
2026-08-24 ₩38,150 +₩3.4bn +₩3.3bn ₩-7.2bn
2026-08-21 ₩36,250 ₩-10.7bn ₩-0.4bn +₩10.1bn
2026-08-20 ₩38,800 ₩-10.6bn +₩5.7bn +₩3.7bn
2026-08-19 ₩38,250 ₩-0.4bn +₩2.1bn ₩-1.7bn
2026-08-18 ₩37,050 ₩-1.2bn ₩-5.9bn +₩6.5bn
2026-08-14 ₩36,950 +₩7.9bn ₩-5.4bn ₩-0.9bn
2026-08-13 ₩36,950 ₩-6.8bn +₩1.1bn +₩5.6bn
2026-08-12 ₩37,250 ₩-5.2bn ₩-0.7bn +₩6.1bn
2026-08-11 ₩38,300 ₩-6.7bn +₩1.0bn +₩5.6bn
2026-08-10 ₩37,450 ₩-0.5bn +₩3.2bn ₩-2.8bn
2026-08-07 ₩34,100 ₩-0.4bn ₩-0.4bn +₩1.6bn
2026-08-06 ₩35,500 ₩-1.4bn +₩1.7bn ₩-0.3bn
2026-08-05 ₩37,500 ₩-1.7bn ₩-2.0bn +₩3.6bn
2026-08-04 ₩36,800 ₩-6.9bn +₩4.6bn +₩2.6bn
2026-08-03 ₩33,150 +₩0.3bn ₩-1.1bn +₩0.7bn
2026-07-31 ₩33,000 ₩-5.5bn +₩2.5bn +₩2.7bn
2026-07-30 ₩27,900 +₩2.1bn ₩-0.3bn ₩-1.3bn
2026-07-29 ₩29,550 +₩8.8bn +₩1.2bn ₩-7.4bn
2026-07-28 ₩33,050 +₩2.5bn ₩-2.1bn ₩-0.9bn
2026-07-27 ₩39,800 ₩-5.2bn +₩4.7bn +₩0.3bn
2026-07-24 ₩39,000 ₩-7.6bn ₩-2.1bn +₩9.7bn
2026-07-23 ₩42,500 ₩-18.7bn +₩7.0bn +₩9.1bn
2026-07-22 ₩36,250 +₩0.9bn ₩-1.6bn ₩-0.6bn
2026-07-21 ₩36,200 +₩5.0bn ₩-1.5bn +₩0.5bn
2026-07-20 ₩36,600 +₩3.9bn ₩-0.9bn ₩-3.0bn
2026-07-16 ₩39,300 ₩-1.6bn ₩-2.3bn +₩3.3bn
2026-07-15 ₩41,950 ₩-14.3bn +₩1.1bn +₩11.8bn
2026-07-14 ₩37,700 ₩-1.1bn +₩2.4bn ₩-1.1bn
2026-07-13 ₩39,250 +₩4.2bn ₩-5.7bn +₩2.4bn

Investor flows summary

Window Foreign (USD) Institutions Retail
1 day ₩-0.3bn $-0M +₩1.7bn ₩-0.6bn
5 days ₩-22.3bn $-17M +₩7.8bn +₩14.2bn
20 days ₩-56.6bn $-42M +₩32.2bn +₩15.3bn

Positive = net buying, negative = net selling. Values aggregate the KRX main board and the NXT alternative venue.

Frequently asked questions

Are foreign investors buying Seojin System stock?

Over the last 5 sessions foreign investors net sold ₩22.3bn ($17M) of Seojin System; over 60 sessions they net sold ₩141.5bn ($106M); since Jan 1, 2026 they net bought ₩197.7bn ($148M). Over 20 sessions the stock is the 15th largest foreign net sale among 1828 KOSDAQ stocks.

How much of Seojin System do foreign investors own?

Foreign investors own 13.53% of Seojin System's shares as of Oct 13, 2026, versus 8.23% 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 bought ₩32.2bn ($24M) and retail investors net bought ₩15.3bn ($11M) of Seojin System. Foreign selling is being absorbed mainly by retail buying.

Is Seojin System listed on KOSPI or KOSDAQ?

Seojin System (서진시스템) trades on KOSDAQ under KRX code 178320 in the Power & Energy group, with a market capitalization of ₩3T ($1.9B). 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 ₩779bn ($584M) – ₩49bn ($37M) –
2024 ₩1.2T ($910M) +55.90% ₩109bn ($82M) ₩84bn ($63M)
2025 ₩1.1T ($800M) -12.10% ₩1bn ($1M) -₩102bn (-$77M)

Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1333.09/$) for reference only.

← All foreign investor flows