ISC (KRX: 095340)
Who is buying ISC?
Between Sep 10, 2026 and Oct 13, 2026 (20 trading sessions), foreign investors net sold ₩106.4bn ($80M) of ISC, the 9th largest foreign net sale among 1828 KOSDAQ stocks. Institutions net bought ₩94.5bn ($71M) and retail investors net bought ₩12.0bn ($9M) over the same window. Foreigners were net buyers on 7 of the 20 sessions.
Foreign investors hold 27.02% of ISC's listed shares (KRX ownership data as of Oct 13, 2026), down from 29.43% twenty sessions earlier and 17.57% a year ago.
The stock closed at ₩183,700 on Oct 13, 2026: -3.62% over 20 sessions, +65.35% year-to-date, +126.23% over one year. The 52-week range is ₩69,700 – ₩292,500.
At ₩183,700 the stock trades at 33.46× 12-month-forward consensus earnings (9 analysts), 31.59× on FY2027 estimates. The trailing P/E published by KRX is 66.97×, based on the last completed fiscal year — the gap reflects earnings expected to rise sharply from last year's level.
View chart data as a table
| Date | Close | Foreign net | Institutions | Retail |
|---|---|---|---|---|
| 2026-10-13 | ₩183,700 | ₩-2.2bn | +₩5.0bn | ₩-2.7bn |
| 2026-10-12 | ₩191,500 | +₩5.1bn | ₩-0.9bn | ₩-4.2bn |
| 2026-10-08 | ₩199,400 | ₩-1.5bn | ₩-2.3bn | +₩3.7bn |
| 2026-10-07 | ₩202,500 | +₩0.2bn | ₩-1.3bn | +₩1.3bn |
| 2026-10-06 | ₩205,500 | +₩5.7bn | ₩-12.0bn | +₩6.2bn |
| 2026-10-02 | ₩206,000 | ₩-19.5bn | ₩-10.0bn | +₩29.7bn |
| 2026-10-01 | ₩224,500 | ₩-0.1bn | +₩6.8bn | ₩-7.1bn |
| 2026-09-30 | ₩213,500 | +₩4.7bn | ₩-1.7bn | ₩-2.7bn |
| 2026-09-29 | ₩209,500 | ₩-4.7bn | +₩3.6bn | +₩1.1bn |
| 2026-09-28 | ₩203,500 | ₩-7.1bn | +₩6.3bn | +₩0.9bn |
| 2026-09-23 | ₩212,500 | ₩-4.6bn | +₩4.6bn | +₩0.2bn |
| 2026-09-22 | ₩208,000 | ₩-4.7bn | +₩13.3bn | ₩-8.4bn |
| 2026-09-21 | ₩199,100 | ₩-0.5bn | +₩8.5bn | ₩-7.7bn |
| 2026-09-18 | ₩186,300 | ₩-3.1bn | +₩0.0bn | +₩3.0bn |
| 2026-09-17 | ₩187,900 | ₩-5.7bn | +₩2.0bn | +₩3.7bn |
| 2026-09-16 | ₩191,900 | +₩2.0bn | ₩-0.6bn | ₩-1.4bn |
| 2026-09-15 | ₩181,600 | +₩0.9bn | +₩0.5bn | ₩-1.4bn |
| 2026-09-14 | ₩180,200 | +₩1.4bn | ₩-3.3bn | +₩1.8bn |
| 2026-09-11 | ₩190,200 | ₩-4.1bn | +₩5.8bn | ₩-1.7bn |
| 2026-09-10 | ₩190,600 | ₩-68.6bn | +₩70.4bn | ₩-2.1bn |
| 2026-09-09 | ₩190,600 | ₩-2.7bn | +₩4.3bn | ₩-1.8bn |
| 2026-09-08 | ₩183,000 | ₩-3.0bn | +₩1.0bn | +₩1.9bn |
| 2026-09-07 | ₩186,000 | ₩-7.4bn | +₩5.8bn | +₩1.3bn |
| 2026-09-04 | ₩182,000 | ₩-9.1bn | +₩12.5bn | ₩-3.6bn |
| 2026-09-03 | ₩171,700 | ₩-9.9bn | +₩11.3bn | ₩-1.0bn |
| 2026-09-02 | ₩170,500 | +₩5.6bn | +₩4.5bn | ₩-9.8bn |
| 2026-09-01 | ₩157,100 | ₩-4.4bn | ₩-3.0bn | +₩7.3bn |
| 2026-08-31 | ₩169,500 | ₩-0.2bn | ₩-1.4bn | +₩1.6bn |
| 2026-08-28 | ₩173,400 | ₩-0.5bn | +₩2.7bn | ₩-2.2bn |
| 2026-08-27 | ₩171,200 | +₩2.6bn | +₩0.5bn | ₩-3.1bn |
| 2026-08-26 | ₩164,800 | +₩1.2bn | ₩-1.0bn | +₩0.0bn |
| 2026-08-25 | ₩165,300 | ₩-2.4bn | +₩6.4bn | ₩-3.9bn |
| 2026-08-24 | ₩154,200 | ₩-0.8bn | +₩1.8bn | ₩-1.0bn |
| 2026-08-21 | ₩154,300 | +₩0.3bn | ₩-2.3bn | +₩1.7bn |
| 2026-08-20 | ₩168,700 | ₩-6.0bn | ₩-0.1bn | +₩6.1bn |
| 2026-08-19 | ₩177,300 | +₩4.2bn | +₩8.6bn | ₩-12.4bn |
| 2026-08-18 | ₩167,100 | +₩2.9bn | +₩4.4bn | ₩-7.2bn |
| 2026-08-14 | ₩161,300 | ₩-2.8bn | +₩4.1bn | ₩-1.2bn |
| 2026-08-13 | ₩159,800 | ₩-2.3bn | +₩7.8bn | ₩-5.5bn |
| 2026-08-12 | ₩149,200 | ₩-6.2bn | +₩6.4bn | ₩-0.1bn |
| 2026-08-11 | ₩148,600 | ₩-1.3bn | +₩1.4bn | ₩-0.1bn |
| 2026-08-10 | ₩142,100 | ₩-0.3bn | +₩4.4bn | ₩-4.3bn |
| 2026-08-07 | ₩131,000 | +₩0.5bn | ₩-0.9bn | +₩0.4bn |
| 2026-08-06 | ₩136,300 | ₩-3.7bn | +₩2.9bn | +₩0.9bn |
| 2026-08-05 | ₩140,200 | ₩-11.1bn | +₩2.1bn | +₩8.7bn |
| 2026-08-04 | ₩131,500 | ₩-3.1bn | +₩4.0bn | ₩-0.9bn |
| 2026-08-03 | ₩124,000 | ₩-3.0bn | ₩-0.8bn | +₩3.7bn |
| 2026-07-31 | ₩129,600 | ₩-6.0bn | +₩8.1bn | ₩-2.2bn |
| 2026-07-30 | ₩106,500 | +₩2.2bn | ₩-1.2bn | ₩-0.9bn |
| 2026-07-29 | ₩110,900 | +₩2.6bn | +₩1.9bn | ₩-4.6bn |
| 2026-07-28 | ₩121,000 | +₩1.4bn | ₩-1.4bn | ₩-0.0bn |
| 2026-07-27 | ₩137,000 | ₩-6.2bn | +₩4.8bn | +₩1.3bn |
| 2026-07-24 | ₩134,600 | +₩1.7bn | ₩-4.8bn | +₩3.0bn |
| 2026-07-23 | ₩147,200 | ₩-2.0bn | +₩2.3bn | ₩-0.2bn |
| 2026-07-22 | ₩140,500 | ₩-0.2bn | +₩0.8bn | ₩-0.5bn |
| 2026-07-21 | ₩139,200 | +₩3.3bn | ₩-1.9bn | ₩-1.0bn |
| 2026-07-20 | ₩135,600 | +₩16.9bn | ₩-11.8bn | ₩-4.4bn |
| 2026-07-16 | ₩145,000 | +₩3.5bn | ₩-5.1bn | +₩1.4bn |
| 2026-07-15 | ₩158,500 | ₩-1.7bn | +₩1.1bn | +₩0.2bn |
| 2026-07-14 | ₩150,000 | ₩-10.7bn | +₩11.8bn | ₩-0.9bn |
| 2026-07-13 | ₩153,500 | ₩-9.5bn | +₩8.9bn | ₩-0.6bn |
Investor flows summary
| Window | Foreign | (USD) | Institutions | Retail |
|---|---|---|---|---|
| 1 day | ₩-2.2bn | $-2M | +₩5.0bn | ₩-2.7bn |
| 5 days | +₩7.2bn | +$5M | ₩-11.5bn | +₩4.3bn |
| 20 days | ₩-106.4bn | $-80M | +₩94.5bn | +₩12.0bn |
Positive = net buying, negative = net selling. Values aggregate the KRX main board and the NXT alternative venue.
Frequently asked questions
Are foreign investors buying ISC stock?
Over the last 5 sessions foreign investors net bought ₩7.2bn ($5M) of ISC; over 60 sessions they net sold ₩164.3bn ($123M); since Jan 1, 2026 they net bought ₩115.9bn ($87M). Over 20 sessions the stock is the 9th largest foreign net sale among 1828 KOSDAQ stocks.
How much of ISC do foreign investors own?
Foreign investors own 27.02% of ISC's shares as of Oct 13, 2026, versus 17.57% 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 ₩94.5bn ($71M) and retail investors net bought ₩12.0bn ($9M) of ISC. Foreign selling is being absorbed mainly by retail buying.
Is ISC listed on KOSPI or KOSDAQ?
ISC (ISC) trades on KOSDAQ under KRX code 095340 in the Semiconductors group, with a market capitalization of ₩4T ($2.9B). 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 | ₩140bn ($105M) | – | ₩11bn ($8M) | ₩14bn ($10M) |
| 2024 | ₩174bn ($131M) | +24.40% | ₩45bn ($34M) | ₩55bn ($41M) |
| 2025 | ₩220bn ($165M) | +26.20% | ₩60bn ($45M) | ₩56bn ($42M) |
Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1333.09/$) for reference only.