대한광통신

12,750KRWMarket close of 10/20 (Tue)

Down -3.41%-450KRWMarket close of 10/20 (Tue)

Preliminary value right after the close — replaced by official KRX data tomorrow morningClose of 10/21 (Wed)14,310KRWUp +12.24%

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

Open: 13,200
High: 13,200
Low: 12,560
Day range: Day range low 12,560 high 13,200, open 13,200, close 12,750, previous close 13,200
Volume: 298×10K shares
: 38.2B KRW 0.17× the 20-session average

Market close of 10/20 (Tue)

Where it sits in the 1-year range

41% of the way up from the lowest close in 1 year (252 sessions) · -56.2% from the high

Something to check

2 to check: operating loss · foreign & institutional net outflow together

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

Earningsto check-14.7B KRWOperating income over the last four quarters -14.7B KRW (loss)Operating income, 8 quarters
!
Foreign & institutionalto check-9.1B KRW5 sessions: foreign -5.8B KRW · institutional -3.3B KRW
- Foreigners-5.8B KRW
- Institutions-3.3B KRW
- ← Sold moreBought more →
Last 5 sessions: foreigners -5.8B KRW · institutions -3.3B KRW
Daily moveusual range-3.41%-3.41%, 0.8× the usual (20-session average ±4.43%)
That day -3.41% · usual ±4.43% · large-move threshold ±8.9%

The other 3 are within the usual range

See the full check report

52-week closing rangeNow 12,750

1,29229,100

Financials filed 2026-08-14 · KRX·DART

Something to check

2 to check: operating loss · foreign & institutional net outflow together

Earningsto checkQuarterly operating income bars (6); the four dark bars make up the sum-14.7B KRW
Foreign & institutionalto checkDaily net flow bars for foreigners and institutions, last 5 sessions-9.1B KRW
Daily moveusual range-3.41% on the reference date, placed against the usual ±4.43% band0.8×
Trading valueusual range0.17× the 20-session average0.2×38.2B KRW, 0.2× the 20-session average
Recent filingsusual rangeOne cell per day for the last 14 days; only filing days are filled0No event filing in the last 14 days
Data dateusual rangeMarket close data of 2026-10-20

· 8 of 66 stocks up, preferred shares excluded · trading value 640.9B KRW

Same sector · top by trading value
Stock	20D	Change	Trading value
효성중공업	Close over the last 20 sessions -32.6%	Down -2.27%	96.1B KRW
LS ELECTRIC	Close over the last 20 sessions -22.2%	Down -5.71%	92.4B KRW
HD현대일렉트릭	Close over the last 20 sessions -31.0%	Down -7.14%	58.9B KRW
가온전선	Close over the last 20 sessions -7.0%	Down -8.84%	53.3B KRW
서진시스템	Close over the last 20 sessions +6.3%	Down -6.38%	49.6B KRW

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