KRX · 139990 · stock
AJUSTEEL Co.,Ltd (139990) stock price history
Every KRX trading session of AJUSTEEL Co.,Ltd from Aug 20, 2021 to Sep 28, 2026: 1,245 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
139990 adjusted close, 2021 to 2026
- ₩33,500
- All time high, 2021
- ₩4,545
- 52 week high, ₩1,955 low
- 1,245
- Daily sessions since 2021
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
139990 key facts
- AJUSTEEL Co.,Ltd (139990) closed at ₩2,220 on Sep 28, 2026 on KRX.
- 139990's all time high close is ₩33,500, set on Aug 20, 2021; its all time low close is ₩1,980 on Jun 26, 2026.
- 139990's 52 week range is ₩1,955 to ₩4,545.
- 139990 returned -39.8% over the year to Sep 28, 2026 and -88.6% over five years.
- Since Aug 20, 2021 139990 returned -93%, -41.2% a year compounded.
- 139990's deepest drawdown was -94.1% from Aug 20, 2021 to Jun 26, 2026.
- DataCedar holds 1,245 daily sessions of 139990 history from Aug 20, 2021 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.
139990 price chart, 2021 to 2026
139990 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -2.6% |
| 3 months | +12.1% |
| 6 months | -26.2% |
| Year to date | -33.4% |
| 1 year | -39.8% |
| 3 years | -70.9% |
| 5 years | -88.6% |
| 10 years | n/a |
| Since Aug 20, 2021 | -93.4% |
| Compound annual growth, 5.1 years | -41.2% |
139990 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ₩33,500 on Aug 20, 2021
- All time low close
- ₩1,980 on Jun 26, 2026
- 52 week high
- ₩4,545 on Apr 29, 2026
- 52 week low
- ₩1,955 on Jul 14, 2026
- Deepest drawdown
- -94.1% from Aug 20, 2021 to Jun 26, 2026, not yet recovered
- Best single session
- +29.9% on Apr 28, 2026
- Worst single session
- -12.8% on Apr 29, 2026
- Volatility, 1 year annualised
- 47.2%
- Sessions closing higher, 1 year
- 43%
- Best calendar year
- 2025, -14%
- Worst calendar year
- 2022, -50%
139990 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2021 starts on Aug 20, 2021; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ₩3,335 | ₩4,545 | ₩1,955 | ₩2,220 | -33.4% | 20.9M | 181 |
| 2025 | ₩3,885 | ₩4,630 | ₩2,955 | ₩3,335 | -14.2% | 6.4M | 241 |
| 2024 | ₩7,100 | ₩7,950 | ₩3,700 | ₩3,885 | -45.3% | 12.2M | 244 |
| 2023 | ₩9,290 | ₩11,250 | ₩6,310 | ₩7,100 | -23.6% | 8.3M | 245 |
| 2022 | ₩19,250 | ₩19,500 | ₩8,860 | ₩9,290 | -49.8% | 18.8M | 244 |
| 2021 | ₩30,200 | ₩39,000 | ₩16,600 | ₩18,500 | n/a | 58.7M | 90 |
139990 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ₩2,220 | -1.3% |
| August 2026 | ₩2,250 | +5.6% |
| July 2026 | ₩2,130 | +4.2% |
| June 2026 | ₩2,045 | -27.2% |
| May 2026 | ₩2,810 | -26.1% |
| April 2026 | ₩3,800 | +26.7% |
| March 2026 | ₩3,000 | -2.9% |
| February 2026 | ₩3,090 | -3.6% |
| January 2026 | ₩3,205 | -3.9% |
| December 2025 | ₩3,335 | -3.1% |
| November 2025 | ₩3,440 | +6.8% |
| October 2025 | ₩3,220 | -9.9% |
About the 139990 data
Daily bars. 1,245 sessions from Aug 20, 2021 to Sep 28, 2026, one row per KRX trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 15, 2026 forward, most recent session Sep 29, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are KRX trading days; minute timestamps are UTC. Prices are in KRW. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Aug 20, 2021, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/139990/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on KRX
Common questions
139990 share price history
