[Hit! Big Win Feeling] 'Hyein, DI' — Good Feeling for Tomorrow's Session, a Big Winner?
Predicted impact: Low
Market-tip column with no concrete company event beyond routine holding reports.
DI디아이
003160 · KOSPI · ₩003160 · 디아이
₩43,300▲ ₩5,500 (14.55%)End-of-day · Oct 28, 2026 · End-of-day prices.
Price · 1Y +85.04%
- Market cap
- ₩1.2T
- Enterprise value
- ₩1.3T
- P/E
- 42.0×
- P/B
- 5.8×
- Dividend yield
- 0.6%
- ROE
- 13.8%
- Net margin
- 6.1%
Trailing 12 months from filed financial statements, as of H1 2026. Dividend yield: the 2025 dividend per share from the annual report ÷ today's price.
52-week range−5.6% from the high
₩15,550Today: ₩39,900 – ₩43,800₩45,850
Returns
- 1W+15.5%
- 1M+19.8%
- 3M+162.4%
- 6M+25.3%
- YTD+102.8%
- 1Y+85.0%
- Volume today
- 2,034,729
- 2.5× the 20-day average
- Traded today
- ₩87B
- Listed shares
- 28,300,000
- EPS (12 months)
- ₩1,031
- Earnings yield 2.4%
AI research · InitiationDI: Shares More Than Double in a Year as Revenue Doubles and Margins Widen, While Model Estimate Sits Below PriceThe filings show a real change in scale and profitability: revenue doubled, operating margin widened to 15.3% and ROE reached 16.0%.Read the full report →
Upcoming dates
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Why is it moving?
+14.6% on Oct 28, 2026. Trading value 2.6× its normal.
- • Foreign investors sold a net ₩6.7M that day
- • Buzz 57 on JONBUR: heavy trading
We found no news, filing or broker report explaining it yet. Moves without news happen; it may come later.
Possible reasons, not certainties. Not financial advice.
Signals
Normal- BuzzNormalBuzz 57: heavy trading.
- MomentumStrong17.8% over the last month; the price is above its 20-day average.
- News impactLow2 news items and filings in two weeks; 0 rated high impact, 0 medium.
Signals describe activity, not recommendations. Not financial advice.
ETFs holding this
All ETFs →Held by 32 funds.
- KODEX 2000.0%
- TIGER 2000.0%
- KODEX 200TR0.0%
- KODEX Leverage2×0.0%
- RISE 2000.0%
- ACE 2000.0%
- KIWOOM 200TR0.0%
- PLUS 2000.0%
Estimated from the funds' index or underlying stock.
DI stock overview
DI (디아이, KRX: 003160) is listed on KOSPI, in the Medical & precision devices sector. I Corporation is a Korean company established in 1961 and listed on the Korea Exchange since 1996 that makes semiconductor test equipment, including Burn-In Testers, Burn-In Boards, and Wafer Testers for chipmakers. Its shares closed at ₩43,300 on Oct 28, 2026, up 14.55% on the day, giving it a market value of ₩1.2T.
Key facts
- Market cap
- ₩1.2T
- Sector
- Medical & precision devices
- Latest price change
- +14.55%
- As of
- Oct 28, 2026
- Main business
- I Corporation is a Korean company established in 1961 and listed on the Korea Exchange since 1996 that makes semiconductor test equipment, including Burn-In Testers, Burn-In Boards, and Wafer Testers for chipmakers.
Quick answers about DI
- What does DI do?
- I Corporation is a Korean company established in 1961 and listed on the Korea Exchange since 1996 that makes semiconductor test equipment, including Burn-In Testers, Burn-In Boards, and Wafer Testers for chipmakers. It also produces electromagnetic shielding and thermal materials for electronic components, imports high-end audio brands, and makes secondary battery inspection equipment. Its main operations include subsidiaries in Japan, China, Poland, and Vietnam.
- What is the market cap of DI?
- The market capitalisation of DI was ₩1.2T at the close on Oct 28, 2026.
- Who are the largest shareholders of DI?
- According to the latest official filings, the largest reported holders are Park Won-ho (29.26%, as of Sep 7, 2026); J.P.MORGANSECURITIESPLC (5.12%, as of Oct 16, 2026); National Pension Service (1.99%, as of Dec 31, 2025).
- When is the next earnings report from DI?
- Korean companies rarely announce results dates in advance. Based on when DI filed the same report in past years, its next 3q results is expected around Nov 14, 2026.
- Does the National Pension Service own DI?
- Yes. The National Pension Service held 1.99% of DI shares as of Dec 31, 2025.
Company profile
D.I Corporation is a Korean company established in 1961 and listed on the Korea Exchange since 1996 that makes semiconductor test equipment, including Burn-In Testers, Burn-In Boards, and Wafer Testers for chipmakers. It also produces electromagnetic shielding and thermal materials for electronic components, imports high-end audio brands, and makes secondary battery inspection equipment. Its main operations include subsidiaries in Japan, China, Poland, and Vietnam.
Written by AI from the company's latest annual report.
- Korean name
- 디아이
- CEO
- 박원호 조윤형
- Founded
- Mar 1961
- Listed
- Jul 1996
- Listed shares
- 28,300,000
- Fiscal year ends
- Month 12
- Website
- www.di.co.kr
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Recent news
Recent filings
See all- 5%+ holding reportOct 16, 2026
- Investor relations (IR) eventOct 13, 2026
- Major sales or supply contractOct 1, 2026
- 5%+ holding reportSep 7, 2026
- Investor relations (IR) eventAug 20, 2026
Titles in Korean until English translations are added.
Also known as: DI / 디아이 / 003160 / KRX:003160
Source: KRX statistical information