서진시스템

34,000KRWMarket close of 10/21 (Wed)

Down -10.88%-4,150KRWMarket close of 10/21 (Wed)

Preliminary value right after the close — replaced by official KRX data tomorrow morningClose of 10/22 (Thu)33,950KRWDown -0.15%

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

Open: 38,800
High: 39,250
Low: 33,850
Day range: Day range low 33,850 high 39,250, open 38,800, close 34,000, previous close 38,150
Volume: 260×10K shares
: 92.3B KRW 1.92× the 20-session average

Market close of 10/21 (Wed)

Where it sits in the 1-year range

21% of the way up from the lowest close in 1 year (252 sessions) · -57.9% from the high

Something to check

2 to check: bigger daily move than usual · operating loss

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

Daily moveto check-10.88%-10.88%, 2.5× the usual (20-session average ±4.34%)
That day -10.88% · usual ±4.34% · large-move threshold ±8.7%
Earningsto check-66.1B KRWOperating income over the last four quarters -66.1B KRW (loss)Operating income, 8 quarters
Trading valueusual range1.9×92.3B KRW, 1.9× the 20-session average
1.92× the 20-session average · check threshold 3×

The other 3 are within the usual range

See the full check report

52-week closing rangeNow 34,000

21,45080,800

Financials filed 2026-08-14 · KRX·DART

Something to check

2 to check: bigger daily move than usual · operating loss

Daily moveto check-10.88% on the reference date, placed against the usual ±4.34% band2.5×
Earningsto checkQuarterly operating income bars (6); the four dark bars make up the sum-66.1B KRW
Trading valueusual range1.92× the 20-session average1.9×92.3B KRW, 1.9× 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
Foreign & institutionalusual rangeDaily net flow bars for foreigners and institutions, last 5 sessions-39.5B KRW
Data dateusual rangeMarket close data of 2026-10-21

· 39 of 66 stocks up, preferred shares excluded · trading value 844.6B KRW

Same sector · top by trading value
Stock	20D	Change	Trading value
대한광통신	Close over the last 20 sessions -11.3%	Up +12.24%	174.3B KRW
LS ELECTRIC	Close over the last 20 sessions -17.8%	Up +7.02%	152.0B KRW
효성중공업	Close over the last 20 sessions -31.9%	Up +3.01%	101.8B KRW
HD현대일렉트릭	Close over the last 20 sessions -29.9%	Up +2.36%	56.7B KRW
산일전기	Close over the last 20 sessions -10.0%	Up +3.90%	36.9B KRW

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