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옵트론텍

082210KOSDAQView the 의료·정밀기기 sectorTheme Bio & healthcare

1,699KRWMarket close of 10/20 (Tue)

Down -0.76%-13KRWMarket close of 10/20 (Tue)

Preliminary value right after the close — replaced by official KRX data tomorrow morningClose of 10/21 (Wed)1,704KRWUp +0.29%

Preliminary · just after the close · replaced by official KRX data tomorrow morning

Open
1,712
High
1,774
Low
1,681
Day range
Day range low 1,681 high 1,774, open 1,712, close 1,699, previous close 1,712
Volume
3×10K shares
48.85 million KRW 0.72× the 20-session average

Market close of 10/20 (Tue)

Where it sits in the 1-year range

1-year close range 1,292 to 2,420 won, 36% up from the low

36% of the way up from the lowest close in 1 year (252 sessions) · -29.8% from the high

Usual range

Nothing unusual in the 4 checked items

Free · no sign-inSource from 2021-05-17

Points to check

  • Recent filingsnot verifiedOutside filing data coverage, so not verified
  • Foreign & institutionalnot verifiedOutside investor-flow coverage, so not verified
  • Daily moveusual range-0.76%-0.76%, 0.4× the usual (20-session average ±2.14%)
    That day -0.76% · usual ±2.14% · large-move threshold ±4.3%

The other 3 are within the usual range

  • Trading value0.7×usual range
  • EarningsOperating income, 8 quartersOperating income, 8 quarters
  • Data date10/20 (Tue)Market close
See the full check report

Quarterly results · Q1 2026

Source: DART financials (Q4 derived as annual − three quarters) · Amended filing reflected
  • Revenue59.3B KRWRevenue bars for the last 8 quarters; the dark bar is this quarter
    vs. year ago
    +25.5%
    vs. prior quarter
    +1.1%
  • Operating income4.4B KRWOperating income bars for the last 8 quarters; the dark bar is this quarter
    vs. year ago
    +571.0%
    vs. prior quarter
    Turned profitable
  • Operating margin7.4%Operating margin bars for the last 8 quarters; the dark bar is this quarter
    vs. year ago
    +6.0 pp
    vs. prior quarter
    +16.7 pp

Quarterly operating income trend

As of the latest official close · 2026-10-20Valuation filing date · 2026-06-29
2021Q1 503.07 million KRW2026Q1 4.4B KRWQ4 values are derived as the annual figure minus Q1–Q3. The value table marks them in the Type column.

Same sector · 의료·정밀기기

Down -4.35%

· 14 of 100 stocks up, preferred shares excluded · trading value 277.2B KRW

Same sector · top by trading value
Stock20DChangeTrading value
빅텍Close over the last 20 sessions +15.7%Up +10.98%76.6B KRW
큐리옥스바이오시스템즈Close over the last 20 sessions +14.0%Down -22.08%56.8B KRW
케이씨텍Close over the last 20 sessions +29.1%Down -9.36%22.5B KRW
티에스이Close over the last 20 sessions +8.2%Down -6.07%22.5B KRW
디아이Close over the last 20 sessions +13.1%Down -8.39%21.3B KRW

Schedule

  • Next data 10/22 (Thu) after 08:50

Investor flows, financials and valuation are provided for 369 stocks. These stocks account for about 81% of trading value, about 92% of market capitalisation. Coverage status →

For information only, not a solicitation to invest. Investment decisions and their results are your own responsibility.