Stock listing

KRX:039440 Systems Technology, Inc. (에스티아이) 주가

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Share price · KRX:039440

₩25,350 KRW -2,150 (-7.8%)

Close on Oct 30, 2026

Past year +7.4% · daily closes, Oct 30, 2025 – Oct 30, 2026, adjusted for splits

Day range: ₩25,250 – ₩26,450 KRWOct 30, 2026
Volume: 124,613 sharesOct 30, 2026
Market cap: ₩388.9B KRWAt the close on Oct 30, 2026 · price × 15.34M shares outstanding
52-week range: ₩17,320 – ₩43,200 KRWLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
Traded on an average day: ₩3.88B KRWMedian day 108,753 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026

Daily closes

Last 3 months, Jul 30, 2026 – Oct 30, 2026 · KRX:039440 · KRW, adjusted for splits

Day	Close	Change	%	Open	High	Low	Volume
Fri, Oct 30	₩25,350	-2,150	-7.8%	₩26,250	₩26,450	₩25,250	124,613
Thu, Oct 29	₩27,500	-1,050	-3.7%	₩28,050	₩28,400	₩26,750	141,818
Wed, Oct 28	₩28,550	+3,200	+12.6%	₩25,950	₩28,900	₩25,400	204,723
Tue, Oct 27	₩25,350	+1,750	+7.4%	₩24,300	₩25,700	₩24,200	217,407
Mon, Oct 26	₩23,600	-3,400	-12.6%	₩25,750	₩26,150	₩23,600	426,210
Fri, Oct 23	₩27,000	-800	-2.9%	₩26,600	₩27,400	₩25,450	180,907
Thu, Oct 22	₩27,800	-1,200	-4.1%	₩28,750	₩30,450	₩27,500	407,822
Wed, Oct 21	₩29,000	+1,700	+6.2%	₩27,600	₩29,200	₩27,150	204,817
Tue, Oct 20	₩27,300	-2,700	-9.0%	₩29,800	₩29,900	₩26,800	318,108
Mon, Oct 19	₩30,000	-800	-2.6%	₩30,250	₩31,150	₩28,600	350,618
Fri, Oct 16	₩30,800	+3,900	+14.5%	₩27,700	₩31,200	₩25,850	597,897
Thu, Oct 15	₩26,900	-2,000	-6.9%	₩27,800	₩28,350	₩26,450	347,598
Wed, Oct 14	₩28,900	+1,550	+5.7%	₩27,750	₩30,400	₩27,700	700,340
Tue, Oct 13	₩27,350	+2,450	+9.8%	₩23,600	₩27,600	₩23,550	491,394
Mon, Oct 12	₩24,900	-300	-1.2%	₩24,550	₩25,900	₩24,500	167,720
Thu, Oct 8	₩25,200	+950	+3.9%	₩24,300	₩25,950	₩24,250	168,554
Wed, Oct 7	₩24,250	-1,650	-6.4%	₩25,600	₩25,650	₩24,200	193,413
Tue, Oct 6	₩25,900	+50	+0.2%	₩26,050	₩26,500	₩25,300	124,810
Fri, Oct 2	₩25,850	-350	-1.3%	₩26,450	₩26,500	₩25,500	165,433
Thu, Oct 1	₩26,200	+3,200	+13.9%	₩22,900	₩26,250	₩22,800	431,038
Wed, Sep 30	₩23,000	+250	+1.1%	₩22,900	₩23,750	₩22,450	145,521
Tue, Sep 29	₩22,750	+1,900	+9.1%	₩20,700	₩23,200	₩20,700	269,789
Mon, Sep 28	₩20,850	-550	-2.6%	₩21,300	₩21,300	₩20,750	41,977
Wed, Sep 23	₩21,400	+600	+2.9%	₩21,300	₩21,550	₩20,950	68,572
Tue, Sep 22	₩20,800	-600	-2.8%	₩21,600	₩21,650	₩20,450	95,634
Mon, Sep 21	₩21,400	+1,200	+5.9%	₩20,050	₩21,400	₩19,510	126,814
Fri, Sep 18	₩20,200	+930	+4.8%	₩19,910	₩20,300	₩19,700	75,120
Thu, Sep 17	₩19,270	+140	+0.7%	₩19,120	₩19,440	₩18,880	44,357
Wed, Sep 16	₩19,130	+320	+1.7%	₩18,680	₩19,130	₩18,410	37,273
Tue, Sep 15	₩18,810	+210	+1.1%	₩18,650	₩19,160	₩18,300	33,440
Mon, Sep 14	₩18,600	-520	-2.7%	₩18,820	₩18,880	₩18,450	46,922
Fri, Sep 11	₩19,120	-600	-3.0%	₩19,200	₩19,260	₩18,950	59,547
Thu, Sep 10	₩19,720	+110	+0.6%	₩19,410	₩19,880	₩19,000	56,972
Wed, Sep 9	₩19,610	+230	+1.2%	₩19,400	₩19,850	₩19,400	46,445
Tue, Sep 8	₩19,380	-420	-2.1%	₩19,950	₩19,990	₩19,270	50,175
Mon, Sep 7	₩19,800	+370	+1.9%	₩20,050	₩20,200	₩19,720	41,701
Fri, Sep 4	₩19,430	+330	+1.7%	₩19,250	₩19,650	₩19,050	65,293
Thu, Sep 3	₩19,100	-430	-2.2%	₩19,670	₩19,870	₩18,760	54,178
Wed, Sep 2	₩19,530	-450	-2.3%	₩19,470	₩19,930	₩19,230	48,638
Tue, Sep 1	₩19,980	-270	-1.3%	₩20,050	₩20,100	₩19,720	44,192
Mon, Aug 31	₩20,250	+100	+0.5%	₩19,710	₩20,250	₩19,210	53,826
Fri, Aug 28	₩20,150	-400	-1.9%	₩20,550	₩21,800	₩20,100	102,703
Thu, Aug 27	₩20,550	+150	+0.7%	₩20,900	₩20,900	₩20,100	51,746
Wed, Aug 26	₩20,400	+50	+0.2%	₩20,450	₩20,500	₩19,740	41,891
Tue, Aug 25	₩20,350	+1,050	+5.4%	₩18,920	₩20,500	₩18,230	73,367
Mon, Aug 24	₩19,300	-600	-3.0%	₩19,950	₩20,100	₩19,230	60,470
Fri, Aug 21	₩19,900	-1,200	-5.7%	₩20,700	₩20,750	₩19,710	90,723
Thu, Aug 20	₩21,100	+350	+1.7%	₩21,250	₩21,700	₩20,900	75,808
Wed, Aug 19	₩20,750	-1,400	-6.3%	₩21,050	₩21,700	₩20,400	121,074
Tue, Aug 18	₩22,150	-1,550	-6.5%	₩23,600	₩24,350	₩21,850	175,869
Fri, Aug 14	₩23,700	-250	-1.0%	₩24,300	₩24,450	₩23,150	71,522
Thu, Aug 13	₩23,950	-50	-0.2%	₩24,500	₩24,600	₩23,600	131,480
Wed, Aug 12	₩24,000	0	0.0%	₩24,200	₩24,200	₩23,300	78,735
Tue, Aug 11	₩24,000	+350	+1.5%	₩23,150	₩25,100	₩22,950	114,802
Mon, Aug 10	₩23,650	+2,500	+11.8%	₩21,750	₩23,950	₩21,600	285,017
Fri, Aug 7	₩21,150	-500	-2.3%	₩21,800	₩22,350	₩20,750	38,535
Thu, Aug 6	₩21,650	-850	-3.8%	₩22,100	₩22,400	₩21,500	40,523
Wed, Aug 5	₩22,500	+600	+2.7%	₩22,950	₩23,000	₩22,250	61,720
Tue, Aug 4	₩21,900	+800	+3.8%	₩21,450	₩22,150	₩20,950	71,990
Mon, Aug 3	₩21,100	-850	-3.9%	₩21,400	₩21,900	₩20,600	114,918
Fri, Jul 31	₩21,950	+3,970	+22.1%	₩20,100	₩22,150	₩19,400	177,975
Thu, Jul 30	₩17,980	-630	-3.4%	₩17,320	₩19,350	₩17,320	128,318