JPX · 4641 · stock
Altech Corporation (4641) stock price history
Every JPX trading session of Altech Corporation from Jan 5, 2001 to Sep 28, 2026: 6,406 daily bars, adjusted for splits and dividends, with minute bars from Sep 14, 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.
4641 adjusted close, 2001 to 2026
- ¥999.78
- All time high, 2025
- ¥907.45
- 52 week high, ¥730.26 low
- 6,406
- Daily sessions since 2001
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2001 to 2026 series and minute bars.
4641 key facts
- Altech Corporation (4641) closed at ¥883.00 on Sep 28, 2026 on JPX.
- 4641's all time high close is ¥999.78, set on Aug 21, 2025; its all time low close is ¥28.21 on Feb 25, 2009.
- 4641's 52 week range is ¥730.26 to ¥907.45.
- 4641 returned -3.5% over the year to Sep 28, 2026 and +54.8% over five years.
- Over ten years 4641 returned +289%, +14.5% a year compounded.
- 4641's deepest drawdown was -84.6% from Apr 19, 2006 to Feb 25, 2009.
- DataCedar holds 6,406 daily sessions of 4641 history from Jan 5, 2001 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
4641 price chart, 2001 to 2026
4641 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.7% |
| 3 months | +16.9% |
| 6 months | +4.3% |
| Year to date | +0.2% |
| 1 year | -3.5% |
| 3 years | +16.0% |
| 5 years | +54.8% |
| 10 years | +288.6% |
| Since Jan 5, 2001 | +912.4% |
| Compound annual growth, 25.7 years | +9.4% |
4641 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥999.78 on Aug 21, 2025
- All time low close
- ¥28.21 on Feb 25, 2009
- 52 week high
- ¥907.45 on Sep 29, 2025
- 52 week low
- ¥730.26 on Jun 3, 2026
- Deepest drawdown
- -84.6% from Apr 19, 2006 to Feb 25, 2009, recovered Feb 25, 2015
- Best single session
- +16.3% on Jan 23, 2001
- Worst single session
- -32.9% on Sep 27, 2004
- Volatility, 1 year annualised
- 17.5%
- Sessions closing higher, 1 year
- 48%
- Growth of 1 since 2001
- 10.1×
- Best calendar year
- 2003, +97%
- Worst calendar year
- 2002, -48%
4641 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. 2001 starts on Jan 5, 2001; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥881.33 | ¥895.00 | ¥730.26 | ¥883.00 | +0.2% | 21.3M | 178 |
| 2025 | ¥816.21 | ¥1,009 | ¥680.38 | ¥881.33 | +8.9% | 18.1M | 243 |
| 2024 | ¥805.41 | ¥905.37 | ¥655.61 | ¥809.63 | +0.7% | 24.7M | 245 |
| 2023 | ¥616.50 | ¥915.28 | ¥591.73 | ¥803.90 | +31.5% | 36.4M | 246 |
| 2022 | ¥531.55 | ¥624.35 | ¥474.63 | ¥611.55 | +15.3% | 37.8M | 244 |
| 2021 | ¥558.24 | ¥599.57 | ¥503.38 | ¥530.44 | -5.8% | 33.1M | 245 |
| 2020 | ¥489.22 | ¥626.03 | ¥313.54 | ¥563.07 | +10.4% | 51.7M | 242 |
| 2019 | ¥373.95 | ¥526.87 | ¥348.11 | ¥509.95 | +34.7% | 43.8M | 241 |
| 2018 | ¥483.30 | ¥634.96 | ¥360.50 | ¥378.71 | -21.6% | 72.8M | 261 |
| 2017 | ¥265.46 | ¥508.66 | ¥263.34 | ¥483.30 | +84.2% | 86M | 253 |
| 2016 | ¥252.23 | ¥275.48 | ¥172.72 | ¥262.39 | +3.6% | 46.7M | 245 |
| 2015 | ¥146.03 | ¥307.36 | ¥133.81 | ¥253.24 | +73.0% | 121.3M | 244 |
| 2014 | ¥98.82 | ¥153.60 | ¥85.21 | ¥146.42 | +48.4% | 46.4M | 244 |
| 2013 | ¥57.24 | ¥99.84 | ¥56.07 | ¥98.63 | +72.3% | 55M | 245 |
| 2012 | ¥57.17 | ¥60.55 | ¥49.64 | ¥57.24 | +0.1% | 17.9M | 248 |
| 2011 | ¥58.60 | ¥63.00 | ¥40.01 | ¥57.17 | -2.4% | 24.1M | 245 |
| 2010 | ¥44.68 | ¥63.78 | ¥40.20 | ¥58.60 | +32.3% | 30.4M | 243 |
| 2009 | ¥62.98 | ¥63.54 | ¥27.57 | ¥44.28 | -29.6% | 34.7M | 243 |
| 2008 | ¥106.04 | ¥106.04 | ¥61.54 | ¥62.90 | -40.9% | 37.4M | 245 |
| 2007 | ¥102.60 | ¥129.44 | ¥94.92 | ¥106.44 | +2.4% | 70.9M | 245 |
| 2006 | ¥119.17 | ¥183.92 | ¥96.14 | ¥103.89 | -12.8% | 80.5M | 260 |
| 2005 | ¥104.12 | ¥131.02 | ¥83.52 | ¥119.17 | +14.5% | 57.6M | 260 |
| 2004 | ¥69.52 | ¥144.53 | ¥64.48 | ¥104.12 | +49.8% | 43.4M | 262 |
| 2003 | ¥35.27 | ¥82.57 | ¥31.31 | ¥69.52 | +97.1% | 13.6M | 261 |
| 2002 | ¥67.72 | ¥70.49 | ¥29.72 | ¥35.27 | -47.9% | 4.9M | 261 |
| 2001 | ¥87.22 | ¥106.68 | ¥56.36 | ¥67.72 | n/a | 5.2M | 257 |
4641 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ¥883.00 | -0.7% |
| August 2026 | ¥889.00 | +7.8% |
| July 2026 | ¥825.00 | +8.4% |
| June 2026 | ¥761.00 | -1.2% |
| May 2026 | ¥769.98 | -6.4% |
| April 2026 | ¥822.73 | -1.7% |
| March 2026 | ¥837.38 | -2.5% |
| February 2026 | ¥858.87 | +0.5% |
| January 2026 | ¥854.96 | -3.0% |
| December 2025 | ¥881.33 | +0.7% |
| November 2025 | ¥875.29 | +7.4% |
| October 2025 | ¥814.79 | -8.4% |
About the 4641 data
Daily bars. 6,406 sessions from Jan 5, 2001 to Sep 28, 2026, one row per JPX 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 14, 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 JPX trading days; minute timestamps are UTC. Prices are in JPY. 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 Jan 5, 2001, 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/4641/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
4641 share price history
