RF Materials (KRX: 327260)
Who is buying RF Materials?
Between Sep 10, 2026 and Oct 13, 2026 (20 trading sessions), foreign investors net sold ₩39.0bn ($29M) of RF Materials, the 23rd largest foreign net sale among 1828 KOSDAQ stocks. Institutions net bought ₩23.9bn ($18M) and retail investors net bought ₩13.1bn ($10M) over the same window. Foreigners were net buyers on 8 of the 20 sessions.
Foreign investors hold 7.3% of RF Materials' listed shares (KRX ownership data as of Oct 13, 2026), down from 12.23% twenty sessions earlier and 4.36% a year ago.
The stock closed at ₩49,950 on Oct 13, 2026: +18.09% over 20 sessions, +343.21% year-to-date, +548.36% over one year. The 52-week range is ₩7,527 – ₩63,421.
At ₩49,950 the stock trades at 39.99× 12-month-forward consensus earnings, 36.84× on FY2027 estimates. The trailing P/E published by KRX is 117.81×, 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 | ₩49,950 | +₩0.2bn | ₩-2.6bn | +₩1.9bn |
| 2026-10-12 | ₩53,700 | ₩-7.9bn | +₩4.7bn | +₩3.0bn |
| 2026-10-08 | ₩53,200 | ₩-3.2bn | +₩1.5bn | +₩1.7bn |
| 2026-10-07 | ₩53,400 | ₩-5.8bn | ₩-2.9bn | +₩8.6bn |
| 2026-10-06 | ₩57,800 | +₩0.6bn | +₩1.5bn | ₩-2.1bn |
| 2026-10-02 | ₩52,500 | +₩4.1bn | +₩2.3bn | ₩-7.8bn |
| 2026-10-01 | ₩49,400 | ₩-3.4bn | +₩0.2bn | +₩3.3bn |
| 2026-09-30 | ₩49,250 | ₩-4.8bn | +₩4.8bn | +₩0.0bn |
| 2026-09-29 | ₩48,800 | +₩3.8bn | +₩6.2bn | ₩-10.2bn |
| 2026-09-28 | ₩46,100 | ₩-0.4bn | ₩-6.4bn | +₩6.8bn |
| 2026-09-23 | ₩47,050 | +₩0.9bn | ₩-2.3bn | +₩1.6bn |
| 2026-09-22 | ₩48,250 | ₩-1.2bn | +₩0.1bn | +₩1.2bn |
| 2026-09-21 | ₩49,150 | ₩-5.8bn | +₩1.8bn | +₩4.0bn |
| 2026-09-18 | ₩48,600 | +₩2.5bn | +₩0.7bn | ₩-2.9bn |
| 2026-09-17 | ₩45,350 | +₩0.4bn | +₩1.2bn | ₩-1.8bn |
| 2026-09-16 | ₩44,250 | ₩-5.4bn | +₩1.0bn | +₩4.7bn |
| 2026-09-15 | ₩45,250 | +₩0.5bn | ₩-1.2bn | +₩0.4bn |
| 2026-09-14 | ₩44,700 | ₩-3.2bn | +₩2.1bn | +₩1.0bn |
| 2026-09-11 | ₩43,600 | ₩-2.1bn | +₩5.1bn | ₩-3.1bn |
| 2026-09-10 | ₩43,400 | ₩-8.9bn | +₩6.1bn | +₩2.8bn |
| 2026-09-09 | ₩42,300 | ₩-8.3bn | +₩16.4bn | ₩-8.1bn |
| 2026-09-08 | ₩34,500 | +₩5.4bn | +₩1.2bn | ₩-6.8bn |
| 2026-09-07 | ₩33,750 | +₩2.1bn | ₩-6.7bn | +₩4.5bn |
| 2026-09-04 | ₩34,050 | ₩-0.8bn | +₩0.6bn | +₩0.2bn |
| 2026-09-03 | ₩33,800 | ₩-2.3bn | +₩0.5bn | +₩1.8bn |
| 2026-09-02 | ₩35,350 | ₩-0.7bn | +₩1.6bn | ₩-0.8bn |
| 2026-09-01 | ₩34,950 | ₩-6.4bn | +₩1.4bn | +₩5.1bn |
| 2026-08-31 | ₩36,750 | +₩4.1bn | +₩0.7bn | ₩-4.7bn |
| 2026-08-28 | ₩34,900 | ₩-10.2bn | +₩2.5bn | +₩7.7bn |
| 2026-08-27 | ₩38,250 | ₩-7.4bn | +₩6.2bn | +₩0.7bn |
| 2026-08-26 | ₩36,700 | ₩-3.7bn | +₩2.4bn | +₩1.2bn |
| 2026-08-25 | ₩34,550 | ₩-2.5bn | +₩1.3bn | +₩1.2bn |
| 2026-08-24 | ₩34,250 | +₩0.5bn | +₩1.4bn | ₩-1.8bn |
| 2026-08-21 | ₩32,900 | ₩-2.7bn | +₩0.8bn | +₩1.8bn |
| 2026-08-20 | ₩35,250 | ₩-0.3bn | +₩1.9bn | ₩-1.8bn |
| 2026-08-19 | ₩33,000 | ₩-0.7bn | ₩-1.0bn | +₩1.7bn |
| 2026-08-18 | ₩35,150 | +₩1.5bn | +₩0.5bn | ₩-2.2bn |
| 2026-08-14 | ₩33,900 | ₩-1.4bn | ₩-0.8bn | +₩2.1bn |
| 2026-08-13 | ₩37,850 | ₩-2.2bn | +₩1.7bn | +₩0.8bn |
| 2026-08-12 | ₩39,600 | ₩-0.0bn | ₩-0.3bn | +₩0.1bn |
| 2026-08-11 | ₩38,400 | ₩-0.8bn | ₩-0.9bn | +₩1.4bn |
| 2026-08-10 | ₩40,850 | ₩-0.8bn | ₩-0.8bn | +₩1.0bn |
| 2026-08-07 | ₩34,850 | ₩-2.2bn | ₩-0.8bn | +₩2.8bn |
| 2026-08-06 | ₩33,050 | ₩-1.2bn | +₩0.1bn | +₩0.8bn |
| 2026-08-05 | ₩33,750 | +₩0.3bn | +₩0.3bn | ₩-0.8bn |
| 2026-08-04 | ₩29,950 | ₩-6.1bn | +₩3.4bn | +₩2.6bn |
| 2026-08-03 | ₩23,050 | ₩-0.5bn | ₩-0.2bn | +₩0.6bn |
| 2026-07-31 | ₩22,350 | ₩-0.1bn | +₩0.5bn | ₩-0.4bn |
| 2026-07-30 | ₩17,220 | +₩0.0bn | +₩0.0bn | ₩-0.1bn |
| 2026-07-29 | ₩18,150 | +₩0.0bn | ₩-0.1bn | +₩0.1bn |
| 2026-07-28 | ₩20,900 | ₩-0.8bn | +₩0.4bn | +₩0.4bn |
| 2026-07-27 | ₩23,700 | ₩-2.2bn | +₩1.3bn | +₩0.8bn |
| 2026-07-24 | ₩22,450 | ₩-3.1bn | ₩-0.7bn | +₩3.6bn |
| 2026-07-23 | ₩26,300 | +₩4.0bn | +₩1.6bn | ₩-5.5bn |
| 2026-07-22 | ₩23,645 | +₩0.0bn | +₩1.4bn | ₩-1.5bn |
| 2026-07-21 | ₩23,770 | ₩-0.7bn | +₩0.8bn | ₩-0.2bn |
| 2026-07-20 | ₩21,967 | +₩0.3bn | +₩0.0bn | ₩-0.3bn |
| 2026-07-16 | ₩23,044 | ₩-0.9bn | ₩-0.5bn | +₩1.4bn |
| 2026-07-15 | ₩26,250 | ₩-0.8bn | +₩1.7bn | ₩-0.9bn |
| 2026-07-14 | ₩22,894 | ₩-0.2bn | +₩0.1bn | +₩0.1bn |
| 2026-07-13 | ₩24,772 | ₩-2.0bn | +₩1.2bn | +₩0.7bn |
Investor flows summary
| Window | Foreign | (USD) | Institutions | Retail |
|---|---|---|---|---|
| 1 day | +₩0.2bn | +$0M | ₩-2.6bn | +₩1.9bn |
| 5 days | ₩-16.0bn | $-12M | +₩2.3bn | +₩13.2bn |
| 20 days | ₩-39.0bn | $-29M | +₩23.9bn | +₩13.1bn |
Positive = net buying, negative = net selling. Values aggregate the KRX main board and the NXT alternative venue.
Frequently asked questions
Are foreign investors buying RF Materials stock?
Over the last 5 sessions foreign investors net sold ₩16.0bn ($12M) of RF Materials; over 60 sessions they net sold ₩90.7bn ($68M); since Jan 1, 2026 they net bought ₩1.9bn ($1M). Over 20 sessions the stock is the 23rd largest foreign net sale among 1828 KOSDAQ stocks.
How much of RF Materials do foreign investors own?
Foreign investors own 7.3% of RF Materials' shares as of Oct 13, 2026, versus 4.36% 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 ₩23.9bn ($18M) and retail investors net bought ₩13.1bn ($10M) of RF Materials. Foreign selling is being absorbed mainly by retail buying.
Is RF Materials listed on KOSPI or KOSDAQ?
RF Materials (RF머트리얼즈) trades on KOSDAQ under KRX code 327260 in the Semiconductors group, with a market capitalization of ₩1T ($0.7B). 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 | ₩48bn ($36M) | – | -₩0bn (-$0M) | ₩1bn ($1M) |
| 2024 | ₩44bn ($33M) | -7.10% | -₩1bn (-$1M) | -₩8bn (-$6M) |
| 2025 | ₩64bn ($48M) | +44.00% | ₩7bn ($6M) | ₩10bn ($8M) |
Consolidated (K-IFRS) where available, from DART regulatory filings. USD figures converted at the current rate (₩1333.09/$) for reference only.