Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

SMEC CO.,LTD

스맥 · 099440 · KOSDAQ · Industrials · Specialty Industrial Machinery

Score

63.1

Rank 184 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%40
Size 25%96
Role 20%65
Recency 10%21
Conviction 10%100

Insider timeline

2 insiders bought within 14 days, 2 Jun to 15 Jun: 2 CEO / chair. 1 of them bought again later. The share closed at 3,610.00 on the first of those days and at 3,840.00 most recently (+6.4%).

Several insiders within 15 days: 2026-06-02 – 2026-06-15Choi Young SupChoi Young SupChief Executive OfficerCEO / chairKwon o hyukKwon o hyukChief Executive OfficerCEO / chair2026-06-02 · Choi Young Sup · purchase · 299,736,720 KRW2026-06-02 · Kwon o hyuk · purchase · 149,971,500 KRW2026-06-08 · Choi Young Sup · purchase · 161,250,000 KRW2026-06-09 · Choi Young Sup · purchase · 138,459,768 KRW2026-06-11 · Choi Young Sup · purchase · 199,527,300 KRW2026-06-12 · Choi Young Sup · purchase · 100,680,000 KRW2026-06-15 · Choi Young Sup · purchase · 128,216,816 KRW2026-06-18 · Choi Young Sup · purchase · 71,115,484 KRW2026-06-19 · Choi Young Sup · purchase · 84,800,624 KRW2026-06-22 · Choi Young Sup · purchase · 115,019,450 KRW2026-06-25 · Choi Young Sup · purchase · 78,164,600 KRW2026-06-26 · Choi Young Sup · purchase · 41,722,524 KRW2026-07-03 · Choi Young Sup · purchase · 25,084,554 KRW2026-07-06 · Choi Young Sup · purchase · 30,358,500 KRW2026-07-08 · Choi Young Sup · purchase · 16,344,000 KRW2026-07-09 · Choi Young Sup · purchase · 103,535,250 KRW2026-07-14 · Choi Young Sup · purchase · 154,419,200 KRW2026-07-15 · Choi Young Sup · purchase · 158,710,500 KRW2026-07-16 · Choi Young Sup · purchase · 12,925,000 KRWMayJunJulAugSepOct

Tap an item for what it means.

●A purchase: the bigger the dot, the more was bought

Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.

▮Purple band: several insiders bought within 15 days

The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 2 Jun – 15 Jun, with 2 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.

Blue line: this share's price, −12.5% over these six months

The closing price of each day, from 4,390.00 on 2026-04-21 to 3,840.00 on 2026-10-16. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.

Dashed line: the typical stock on the same exchange, −31.9%

Taken from the 1525 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −12.5%, the typical one −31.9%, 19.3 points ahead. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

14Nov
1Dec
Jan
Feb
4Mar
Apr
May
2Jun
1Jul
Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Choi Young SupCEO / chair18—1.9bn KRW2026-06-02+6.4%
Kwon o hyukCEO / chair1—150.0M KRW2026-06-02+6.4%

Insiders' buying price vs the latest close

Insiders paid 4,554.31 KRW a share on average (40 purchase lines, 14 buyers, 2025-11-25 – 2026-07-16). The close on 2026-10-16 was 15.7% below that price.

The latest purchase (2026-07-16) was at 2,585.00 KRW; the close was 48.5% above that price.

Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored.

Insider trades on the exchange

Purchases and sales on the exchange in the last 12 months. The filing gives the settlement date; the trade date is two trading days earlier.

Trade dateInsiderRoleTradeSharesPriceValueFiling
2026-07-16Choi Young SupChairmanBought on the exchange5,000₩2,585₩12.9MDART ↗
2026-07-15Choi Young SupChairmanBought on the exchange58,500₩2,713₩158.7MDART ↗
2026-07-14Choi Young SupChairmanBought on the exchange60,320₩2,560₩154.4MDART ↗
2026-07-09Choi Young SupChairmanBought on the exchange38,850₩2,665₩103.5MDART ↗
2026-07-08Choi Young SupChairmanBought on the exchange6,000₩2,724₩16.3MDART ↗
2026-07-06Choi Young SupChairmanBought on the exchange11,100₩2,735₩30.4MDART ↗
2026-07-03Choi Young SupChairmanBought on the exchange9,339₩2,686₩25.1MDART ↗
2026-06-26Choi Young SupChairmanBought on the exchange16,134₩2,586₩41.7MDART ↗
2026-06-25Choi Young SupChairmanBought on the exchange28,300₩2,762₩78.2MDART ↗
2026-06-22Choi Young SupChairmanBought on the exchange38,675₩2,974₩115.0MDART ↗
2026-06-19Choi Young SupChairmanBought on the exchange28,024₩3,026₩84.8MDART ↗
2026-06-18Choi Young SupChairmanBought on the exchange21,956₩3,239₩71.1MDART ↗
2026-06-15Choi Young SupChairmanBought on the exchange38,948₩3,292₩128.2MDART ↗
2026-06-12Choi Young SupChairmanBought on the exchange30,000₩3,356₩100.7MDART ↗
2026-06-11Choi Young SupChairmanBought on the exchange62,100₩3,213₩199.5MDART ↗
2026-06-09Choi Young SupChairmanBought on the exchange41,592₩3,329₩138.5MDART ↗
2026-06-08Choi Young SupChairmanBought on the exchange50,000₩3,225₩161.2MDART ↗
2026-06-02Choi Young SupChairmanBought on the exchange86,280₩3,474₩299.7MDART ↗
2026-06-02Kwon o hyukCEOBought on the exchange43,470₩3,450₩150.0MDART ↗
2026-03-18Son yun seopDirectorBought on the exchange3,602₩5,567₩20.1MDART ↗
2026-03-18Choi yong seokDirectorBought on the exchange8,896₩5,616₩50.0MDART ↗
2026-03-17Park jin seongManaging directorBought on the exchange9,290₩5,478₩50.9MDART ↗
2026-03-17Ryu jae heeVice presidentBought on the exchange18,328₩5,454₩100.0MDART ↗
2025-12-26Kwon o hyukVice presidentBought on the exchange276,070₩6,696₩1.8BDART ↗
2025-12-01Kwon o hyukVice presidentBought on the exchange95,645₩5,223₩499.6MDART ↗
2025-11-26Choi Young SupCEOBought on the exchange340,000₩4,502₩1.5BDART ↗
2025-11-25Lee joo hyunManaging directorBought on the exchange41,964₩4,766₩200.0MDART ↗
2025-11-25Ko dong yeonDirectorBought on the exchange41,899₩4,769₩199.8MDART ↗
2025-11-25Jang do seokDirectorBought on the exchange41,840₩4,775₩199.8MDART ↗
2025-11-25Moon chang hoManaging directorBought on the exchange42,394₩4,713₩199.8MDART ↗
2025-11-25Bae chul kiManaging directorBought on the exchange41,442₩4,821₩199.8MDART ↗
2025-11-25Jeon jae seonManaging directorBought on the exchange41,535₩4,810₩199.8MDART ↗
2025-11-25Choi yong seokDirectorBought on the exchange42,491₩4,709₩200.1MDART ↗
2025-11-25Kim jong hanManaging directorBought on the exchange41,382₩4,828₩199.8MDART ↗
2025-11-25Park jin seongManaging directorBought on the exchange42,229₩4,713₩199.0MDART ↗
2025-11-25Ryu jae heeSenior managing directorBought on the exchange83,359₩4,794₩399.6MDART ↗
2025-11-25Park jong hoDirectorBought on the exchange62,750₩4,776₩299.7MDART ↗
2025-11-25Son yun seopDirectorBought on the exchange62,922₩4,763₩299.7MDART ↗
2025-11-25Kwon o hyukVice presidentBought on the exchange308,285₩4,861₩1.5BDART ↗
2025-11-25Choi Young SupCEOBought on the exchange340,000₩4,863₩1.7BDART ↗
Other changes in holdings · 5

Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.

DateInsiderRoleReasonSharesFiling
2026-04-24SNT Holdings Co., Ltd.10% shareholderOff-hour trading(-)8,763,140DART ↗
2026-04-22SNT Motiv Co., Ltd.10% shareholderNew major shareholders(+)13,960,332DART ↗
2025-11-26SNT Holdings Co., Ltd.10% shareholderNew major shareholders(+)3,728,468DART ↗
2025-11-24SNT Holdings Co., Ltd.10% shareholderNew report(+)5,584,672DART ↗
2025-06-27Choi Young SupCEOAcquisition of paid-in new shares(+)2,964,889DART ↗