1. South Korea Stocks

  2. •

    Electronic technology

  3. •

    Electronic equipment/Instruments
SD System Co., Ltd.

SD System Co., Ltd.

KKRX:121890
2,400.00
KRW
-130.00
(-5.14%)
24.49EPS
69.01P/E
22.46BMarket Cap
SD System Co., Ltd.
KRX:121890
(Korea Stock Exchange)

Recent

price

2,400.00

P/E

ratio

69.01

div

yld

- -

ROIC.AI

2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
TTM
KRW
8,132.35
6,163.24
11,924.8
10,426.11
8,819.91
11,387.11
10,662.02
9,288.3
5,810.67
4,396.52
2,448.85
2,231.74
2,053.18
1,679.56
1,393.9
2,169.02
1,875.58
Revenue per Share
729.19
-203.75
8.93
-920.55
546.75
481.48
-1,154.31
-1,534.66
-719
-1,558
-311
251
-55
208
-141
96
24.49
Basic EPS, GAAP
310.13
-674.43
-442.86
-553.11
112.84
-21.31
328.69
-2,406.5
61.01
-449.94
498.67
74.84
-15.55
112.86
125.8
-145.65
-27.21
Free Cash Flow per Basic Share
- -
59.74
- -
- -
- -
55.77
55.78
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Dividend per Share
5,306.84
5,130.41
5,126.3
4,200.41
4,748.67
5,083.54
3,875.8
2,345.42
2,021.53
697.53
569.74
829.51
739.12
947.39
807.81
901.03
845.63
Book Value per Share
5,179.57
4,928.09
4,934.54
4,085.06
4,635.65
4,979.79
3,770.72
2,241.24
1,953.16
667.67
566.25
826.03
709.83
922.22
789.59
888.43
834.43
Tangible Book Value per Share
6
6
6
6
6
6
6
6
8
9
9
10
11
13
13
13
13
Basic Weighted Avg Shares
49,273
39,206
69,814
62,160
52,581
67,902
63,562
55,362
45,562
38,144
22,592
21,417
22,497
21,295
18,064
28,794
24,929
Sales/Revenue/Turnover
8.39
-7.47
0.76
-7.16
4.23
4.15
-11.52
-13.58
-10.13
-11.26
-3.87
8.42
-3.25
4.84
-11.98
3.82
0.57
Operating Margin (%)
214
365
353
533
204
301
446
770
850
589
404
71
135
226
212
198
198
Depreciation Expense
4,418
-1,296
52
-5,488
3,259
2,871
-6,881
-9,147
-5,638
-13,517
-2,869
2,409
-603
2,637
-1,827
1,274
326
Net Income, GAAP
3.94
- -
84.32
- -
- -
3.93
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
Effective Tax Rate (%)
8.97
-3.31
0.07
-8.83
6.2
4.23
-10.83
-16.52
-12.37
-35.44
-12.7
11.25
-2.68
12.38
-10.12
4.43
1.31
Profit Margin (%)
33,495
26,410
26,911
23,223
24,033
24,907
16,000
7,530
7,844
1,233
1,523
3,987
4,459
7,191
6,013
7,307
6,615
Working Capital
- -
- -
- -
- -
375
125
- -
- -
- -
97
39
- -
19
3
10
25
21
LT Debt
36,146
30,579
30,555
25,036
28,304
30,300
23,101
13,980
16,754
6,311
5,475
7,971
9,377
12,019
10,737
11,976
11,240
Total Equity
14.04
- -
0.27
- -
- -
9.03
- -
- -
- -
- -
- -
39.05
- -
9.88
- -
9.98
1.31
Return on Invested Capital (%)
15.65
- -
0.17
- -
- -
9.55
- -
- -
- -
- -
- -
35.3
- -
24.59
- -
11.2
2.94
Return on Capital (%)
15.65
-3.88
0.17
-19.75
12.22
9.8
-25.77
-49.34
-36.69
-117.21
-48.69
35.83
-6.95
24.65
-16.06
11.22
2.93
Return on Common Equity (%)

Capital Structure

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
ST Debt
22
19
19
LT Borrowings
- -
- -
- -
LT Finance Leases
19
25
21
Preferred Equity and Hybrid Capital
- -
- -
- -
Shares Outstanding
13
13
13
Market Capitalization
21,532
23,127
22,463

Working Capital

KRW

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
Total Current Assets
9,832
15,360
8,835
Cash, Cash Equivalents & STI
5,912
7,492
5,639
Accounts Receivable, Net
2,786
6,498
2,054
Inventories
518
547
576
Total Current Liabilities
3,267
8,053
2,220
Payables & Accruals
- -
- -
- -
ST Debt
22
19
19
Deferred Revenue
- -
- -
- -

Growth Rates

KRW

•

in mil. unless spec.

(avg. rate of change)

10 years
5 years
1 year
Total Equity
-2.67%
18.46%
11.54%
Free Cash Flow
-506.43%
-270.54%
-218.6%
Net Income, GAAP
-146.97%
-237.12%
-169.74%
Sales/Revenue/Turnover
-5.53%
7.74%
59.4%
Total Cash Common Dividend
- -
- -
- -

Quarterly Revenue

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
5,049
4,959
3,387
4,669
18,064
2025
6,658
6,497
5,046
10,592
28,794
2026
2,794
- -
- -
- -
- -

Quarterly Earnings Per Share

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
-5
-8
-26
-99.33
-141
2025
16
3.51
5.48
70.9
96
2026
-55.4
- -
- -
- -
- -

Quarterly Dividends Per Share

KRW

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
- -
- -
- -
- -
- -
2025
- -
- -
- -
- -
- -
2026
- -
- -
- -
- -
- -
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Business
SD System Co., Ltd. is a South Korea-based technology company primarily engaged in the development, manufacturing, and implementation of intelligent transportation systems, electronic toll collection systems, smart home automation networks, and integrated security solutions. Founded in 2001 and headquartered in Seongnam-si, Gyeonggi-do, South Korea, the company operates across four primary business segments: Intelligent Transportation Systems, Smart Home Solutions, Smart Parking and Security, and Specialized Electronics. The company's comprehensive product and service portfolio comprises Intelligent Transportation Systems (ITS), including roadside electronic toll collection systems (ETCS) and onboard Hi-Pass transceivers; multi-lane free-flow smart tolling platforms; freeway traffic management systems (FTMS); automated number plate recognition (ANPR) systems; vehicle detection systems (VDS); weigh-in-motion (WIM) sensors; and traffic control center management software; Smart Home and Building Automation Solutions, featuring interactive home network wall pads; video door phones; digital door lock systems; IoT home automation hubs; building energy management systems (BEMS); and intelligent LED lighting controllers; Smart Parking and Security Systems, encompassing ultrasonic and video-based parking guidance systems; automated parking barrier gates; network closed-circuit television (CCTV) cameras; biometric access control terminals; and centralized facility monitoring software; and Specialized Electronics, consisting of tactical defense communications equipment; military display consoles; and regulated power supply units. The company primarily caters to government transportation authorities, public highway operators, municipal governments, residential and commercial construction developers, and defense contractors across South Korea. In recent developments, SD System Co., Ltd. has accelerated its strategic expansion into next-generation Cooperative Intelligent Transport Systems (C-ITS) and artificial intelligence-enabled multi-lane free-flow tolling architectures to align with national expressway digital transformation projects. Furthermore, the company has broadened its smart city IoT portfolio through the rollout of cloud-integrated residential network controllers and established new supply partnerships with domestic construction firms and regional infrastructure authorities to deploy integrated smart home and urban traffic monitoring solutions.