Lightron Q1 26: Operating Loss Narrows, Net Loss Widens; Capital Erosion Concerns


  • Q1 consolidated operating loss narrowed to KRW 1.72bn (vs. KRW 2.26bn in Q1 2025), but net loss expanded to KRW 3.30bn (vs. KRW 1.99bn) due to KRW 1.01bn valuation loss on financial assets
  • Revenue fell to KRW 7.07bn (vs. KRW 8.46bn); top 5 customers account for 85% of sales
  • Shares outstanding surged 60% to 97.9mn from 61.0mn via rights issue and CB conversion; total equity rose to KRW 77.1bn (from KRW 58.9bn at year-end 2025)
  • Short-term borrowings reduced to KRW 2.65bn (from KRW 8.40bn); carrying amount of convertible bonds increased to KRW 16.07bn (from KRW 15.12bn)
  • Credit rating maintained at B- (speculative); debt-to-equity ratio improved to 36.5% (from 57.3%)
  • Largest shareholder changed to BNS Consortium (22.31%); related-party receivables stood at KRW 28.4bn, mainly from Prestige Development
  • Pending lawsuits: 2 as defendant (KRW 0.18bn), 5 as plaintiff (KRW 1.75bn total)
  • R&D expenses KRW 0.51bn (7.1% of sales); developing 25G/100G/400G/800G optical modules and defense products
  • Post-report: issued additional CBs of KRW 13bn (16th & 17th series) and sold all Hanwool Semiconductor shares
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KOSDAQ Filing Information


  • Filing: Quarterly Report (2026.03)
  • Company: Lightron Fiber-Optic Devices (069540)
  • Submission: Lightron Fiber-Optic Devices Inc.
  • Receipt: 05-15-2026