Korean Stock Flows

TAIHAN Fiberoptics (KRX: 010170)

대한광통신 KOSDAQ Infrastructure 절연선 및 케이블 제조업
Close (Oct 16, 2026)
₩13,340
+2.14%
Market cap
₩2T ($1.5B)
52-week range
₩1,572 – ₩31,500
P/E (FY1 fwd) · P/B · Div yield
533.60 · 27.56 · 0%
trailing – · consensus of analysts

Who is buying TAIHAN Fiberoptics?

Between Sep 15, 2026 and Oct 16, 2026 (20 trading sessions), foreign investors net bought ₩31.9bn ($24M) of TAIHAN Fiberoptics, the 18th largest foreign net purchase among 1828 KOSDAQ stocks. Institutions net sold ₩1.4bn ($1M) and retail investors net sold ₩32.9bn ($24M) over the same window. Foreigners were net buyers on 7 of the 20 sessions.

Foreign investors hold 3.42% of TAIHAN Fiberoptics' listed shares (KRX ownership data as of Oct 16, 2026), up from 1.88% twenty sessions earlier and 5.29% a year ago.

The stock closed at ₩13,340 on Oct 16, 2026: -7.94% over 20 sessions, +525.70% year-to-date, +668.43% over one year. The 52-week range is ₩1,572 – ₩31,500.

At ₩13,340 the stock trades at 533.60× current-fiscal-year consensus earnings.

TAIHAN Fiberoptics share price, last 60 trading days (KRW)
19,212 14,967 10,723 6,478 Jul 16 Aug 31 Oct 16
Daily foreign investor net purchases, last 60 trading days
+90.9bn +45.5bn -45.5bn -90.9bn Jul 16 Aug 31 Oct 16
View chart data as a table
Date Close Foreign net Institutions Retail
2026-10-16 ₩13,340 ₩-1.8bn +₩0.2bn +₩1.6bn
2026-10-15 ₩13,060 +₩3.9bn ₩-3.4bn ₩-1.3bn
2026-10-14 ₩14,650 ₩-5.2bn +₩0.4bn +₩4.2bn
2026-10-13 ₩14,670 ₩-0.7bn ₩-0.2bn +₩0.9bn
2026-10-12 ₩15,720 ₩-1.3bn ₩-2.3bn +₩3.5bn
2026-10-08 ₩16,970 ₩-12.8bn ₩-4.6bn +₩17.3bn
2026-10-07 ₩17,940 ₩-26.2bn ₩-0.4bn +₩26.5bn
2026-10-06 ₩18,530 +₩32.6bn +₩0.7bn ₩-33.1bn
2026-10-02 ₩17,800 +₩8.9bn ₩-1.0bn ₩-8.7bn
2026-10-01 ₩17,000 +₩0.9bn ₩-1.4bn +₩0.7bn
2026-09-30 ₩16,680 ₩-17.5bn +₩0.2bn +₩17.6bn
2026-09-29 ₩16,600 ₩-8.1bn ₩-1.3bn +₩9.1bn
2026-09-28 ₩17,280 ₩-11.1bn +₩0.7bn +₩10.1bn
2026-09-23 ₩17,700 ₩-14.8bn ₩-0.1bn +₩14.6bn
2026-09-22 ₩17,810 ₩-21.2bn ₩-0.0bn +₩20.4bn
2026-09-21 ₩17,720 ₩-45.6bn +₩0.3bn +₩43.5bn
2026-09-18 ₩18,320 +₩90.9bn +₩8.2bn ₩-97.0bn
2026-09-17 ₩16,130 ₩-9.1bn +₩0.4bn +₩8.0bn
2026-09-16 ₩16,100 +₩68.8bn +₩1.9bn ₩-69.9bn
2026-09-15 ₩14,140 +₩1.5bn +₩0.2bn ₩-0.9bn
2026-09-14 ₩14,490 ₩-2.4bn +₩0.3bn +₩2.3bn
2026-09-11 ₩14,150 ₩-13.8bn ₩-0.7bn +₩14.6bn
2026-09-10 ₩14,740 ₩-8.7bn +₩3.7bn +₩4.0bn
2026-09-09 ₩14,960 +₩30.6bn +₩1.3bn ₩-30.8bn
2026-09-08 ₩13,700 ₩-9.3bn +₩0.6bn +₩8.7bn
2026-09-07 ₩13,470 +₩1.1bn ₩-0.1bn ₩-1.3bn
2026-09-04 ₩13,010 ₩-1.9bn ₩-0.5bn +₩2.3bn
2026-09-03 ₩12,850 ₩-7.0bn ₩-0.4bn +₩6.2bn
2026-09-02 ₩13,570 +₩0.5bn +₩0.0bn ₩-0.2bn
2026-09-01 ₩13,310 ₩-7.8bn ₩-0.6bn +₩8.2bn
2026-08-31 ₩13,960 ₩-8.9bn ₩-0.1bn +₩9.2bn
2026-08-28 ₩14,310 ₩-23.4bn ₩-0.8bn +₩23.0bn
2026-08-27 ₩14,860 +₩46.7bn +₩1.2bn ₩-47.5bn
2026-08-26 ₩13,500 ₩-22.7bn +₩0.8bn +₩21.4bn
2026-08-25 ₩13,500 +₩2.4bn +₩0.1bn ₩-2.5bn
2026-08-24 ₩13,150 +₩14.6bn +₩0.1bn ₩-14.5bn
2026-08-21 ₩12,120 ₩-1.8bn ₩-0.5bn +₩2.2bn
2026-08-20 ₩12,650 +₩0.2bn ₩-0.4bn ₩-0.1bn
2026-08-19 ₩12,700 ₩-0.7bn ₩-0.4bn +₩0.7bn
2026-08-18 ₩12,890 ₩-5.8bn ₩-0.7bn +₩6.3bn
2026-08-14 ₩13,370 +₩2.6bn ₩-0.3bn ₩-1.8bn
2026-08-13 ₩13,240 ₩-0.8bn ₩-2.4bn +₩3.7bn
2026-08-12 ₩13,510 ₩-10.2bn +₩0.6bn +₩9.0bn
2026-08-11 ₩13,450 ₩-5.4bn ₩-0.7bn +₩6.3bn
2026-08-10 ₩14,040 +₩15.1bn +₩8.1bn ₩-22.7bn
2026-08-07 ₩11,460 ₩-21.3bn ₩-2.2bn +₩21.3bn
2026-08-06 ₩11,070 ₩-11.4bn ₩-2.4bn +₩13.9bn
2026-08-05 ₩12,070 ₩-43.5bn +₩11.8bn +₩31.3bn
2026-08-04 ₩10,180 ₩-1.3bn +₩0.5bn +₩0.7bn
2026-08-03 ₩9,250 ₩-0.6bn ₩-0.1bn +₩0.5bn
2026-07-31 ₩8,530 +₩6.0bn +₩0.3bn ₩-6.4bn
2026-07-30 ₩7,160 ₩-0.9bn +₩0.1bn +₩0.9bn
2026-07-29 ₩7,450 +₩16.4bn +₩0.3bn ₩-16.7bn
2026-07-28 ₩8,450 ₩-0.5bn +₩0.4bn +₩0.2bn
2026-07-27 ₩9,740 ₩-2.6bn ₩-0.1bn +₩2.7bn
2026-07-24 ₩9,920 ₩-13.9bn ₩-0.0bn +₩13.8bn
2026-07-23 ₩10,840 +₩7.8bn +₩0.1bn ₩-7.8bn
2026-07-22 ₩10,090 +₩8.0bn +₩0.1bn ₩-8.0bn
2026-07-21 ₩9,860 +₩3.6bn +₩0.8bn ₩-4.2bn
2026-07-20 ₩9,460 +₩5.5bn +₩0.0bn ₩-5.5bn
2026-07-16 ₩10,300 ₩-7.9bn ₩-0.9bn +₩8.3bn

Investor flows summary

Window Foreign (USD) Institutions Retail
1 day ₩-1.8bn $-1M +₩0.2bn +₩1.6bn
5 days ₩-5.2bn $-4M ₩-5.3bn +₩8.9bn
20 days +₩31.9bn +$24M ₩-1.4bn ₩-32.9bn

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

Frequently asked questions

Are foreign investors buying TAIHAN Fiberoptics stock?

Over the last 5 sessions foreign investors net sold ₩5.2bn ($4M) of TAIHAN Fiberoptics; over 60 sessions they net sold ₩33.4bn ($25M); since Jan 1, 2026 they net sold ₩178.9bn ($133M). Over 20 sessions the stock is the 18th largest foreign net purchase among 1828 KOSDAQ stocks.

How much of TAIHAN Fiberoptics do foreign investors own?

Foreign investors own 3.42% of TAIHAN Fiberoptics' shares as of Oct 16, 2026, versus 5.29% 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 ₩1.4bn ($1M) and retail investors net sold ₩32.9bn ($24M) of TAIHAN Fiberoptics. Foreign buying is being met mainly by retail selling.

Is TAIHAN Fiberoptics listed on KOSPI or KOSDAQ?

TAIHAN Fiberoptics (대한광통신) trades on KOSDAQ under KRX code 010170 in the Infrastructure group, with a market capitalization of ₩2T ($1.5B). 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 ₩180bn ($134M) – -₩23bn (-$17M) -₩29bn (-$22M)
2024 ₩153bn ($113M) -15.30% -₩30bn (-$22M) -₩56bn (-$42M)
2025 ₩139bn ($104M) -8.70% -₩21bn (-$16M) -₩28bn (-$21M)

Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1345.9/$) for reference only.

← All foreign investor flows