No.1
Disclosure
2026/10/19 18:40
第23回新株予約権の行使期間満了に関するお知らせ
3905 Datasection Inc.データセクションTSE Growth / Information & Communication
1 post
Datasection Inc. stock fell on Oct 29: what happened
It closed at ¥2,107 on Oct 29 (−¥170, −7.47%), ranking #45 among the top losers of all stocks on the Tokyo Stock Exchange.
No disclosures were found for this stock around that day. Share what you know in the posts below.
Changes are calculated from the closing prices this site collects daily; limit-up/down is an estimate based on the daily price limit. Please make your own investment decisions.
Datasection Inc. (3905) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
Datasection Inc. (3905) Stock Price History
Datasection Inc. closed at ¥1,950 on Oct 30, 2026, −3.2% over 1 month, +1.8% over 1 year.
Price5-day MA25-day MANikkei 225Disclosures
1-Month High¥2,330Oct 27
1-Month Low¥1,230Oct 22
1-Week Change+27.5%vs Oct 23
1-Month Change−3.2%vs Sep 30
If you had invested ¥100,000 1 month ago, it would be worth ¥96,774 today (−3.2%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved −5.2%, while this stock moved −3.2%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥1,950 | −157 | −7.45% |
| Oct 29 (Thu) | ¥2,107 | −170 | −7.47% |
| Oct 28 (Wed) | ¥2,277 | −53 | −2.27% |
| Oct 27 (Tue) | ¥2,330 | +400 | +20.73% |
| Oct 26 (Mon) | ¥1,930 | +400 | +26.14% |
| Oct 23 (Fri) | ¥1,530 | +300 | +24.39% |
| Oct 22 (Thu) | ¥1,230 | −74 | −5.67% |
| Oct 21 (Wed) | ¥1,304 | +4 | +0.31% |
| Oct 20 (Tue) | ¥1,300 | −14 | −1.07% |
| Oct 19 (Mon) | ¥1,314 | −49 | −3.60% |
Price5-day MA25-day MANikkei 225Disclosures
3-Month High¥2,330Oct 27
3-Month Low¥1,230Oct 22
1-Month Change−3.2%vs Sep 30
3-Month Change+3.9%vs Jul 30
If you had invested ¥100,000 3 months ago, it would be worth ¥103,945 today (+3.9%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +2.3%, while this stock moved +3.9%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥1,950 | −157 | −7.45% |
| Oct 29 (Thu) | ¥2,107 | −170 | −7.47% |
| Oct 28 (Wed) | ¥2,277 | −53 | −2.27% |
| Oct 27 (Tue) | ¥2,330 | +400 | +20.73% |
| Oct 26 (Mon) | ¥1,930 | +400 | +26.14% |
| Oct 23 (Fri) | ¥1,530 | +300 | +24.39% |
| Oct 22 (Thu) | ¥1,230 | −74 | −5.67% |
| Oct 21 (Wed) | ¥1,304 | +4 | +0.31% |
| Oct 20 (Tue) | ¥1,300 | −14 | −1.07% |
| Oct 19 (Mon) | ¥1,314 | −49 | −3.60% |
Price25-day MA75-day MANikkei 225Disclosures
6-Month High¥6,140May 29
6-Month Low¥1,230Oct 22
3-Month Change+3.9%vs Jul 30
6-Month Change+31.1%vs Apr 30
If you had invested ¥100,000 6 months ago, it would be worth ¥131,137 today (+31.1%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +6.8%, while this stock moved +31.1%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥1,950 | −3.2% |
| Sep 2026 | ¥2,015 | +18.8% |
| Aug 2026 | ¥1,696 | −20.5% |
| Jul 2026 | ¥2,134 | −38.4% |
| Jun 2026 | ¥3,465 | −43.6% |
| May 2026 | ¥6,140 | +312.9% |
| Apr 2026 | ¥1,487 | +17.1% |
Price25-day MA75-day MANikkei 225Disclosures
52-Week High¥6,140May 29
52-Week Low¥1,230Oct 22
Year to Date−2.3%vs Dec 30
From 52-Week High−68.2%May 29
If you had invested ¥100,000 1 year ago, it would be worth ¥101,828 today (+1.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +23.3%, while this stock moved +1.8%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥1,950 | −3.2% |
| Sep 2026 | ¥2,015 | +18.8% |
| Aug 2026 | ¥1,696 | −20.5% |
| Jul 2026 | ¥2,134 | −38.4% |
| Jun 2026 | ¥3,465 | −43.6% |
| May 2026 | ¥6,140 | +312.9% |
| Apr 2026 | ¥1,487 | +17.1% |
| Mar 2026 | ¥1,270 | −33.1% |
| Feb 2026 | ¥1,897 | +1.1% |
| Jan 2026 | ¥1,876 | −6.0% |
| Dec 2025 | ¥1,995 | −16.1% |
| Nov 2025 | ¥2,377 | +23.4% |
| Oct 2025 | ¥1,927 | ― |
Price13-week MA26-week MANikkei 225
3-Year High¥6,140May 29, 2026
3-Year Low¥260Dec 11, 2023
Annualized Return+89.8%
Max Drawdown−77.8%
If you had invested ¥100,000 3 years ago, it would be worth ¥684,211 today (+584.2%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +98.1%, while this stock moved +584.2%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,950 | −2.3% |
| 2025 | ¥1,995 | ― |
Price13-week MA26-week MANikkei 225
5-Year High¥6,140May 29, 2026
5-Year Low¥238Feb 13, 2023
Annualized Return+40.7%
Max Drawdown−77.8%
If you had invested ¥100,000 5 years ago, it would be worth ¥550,847 today (+450.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +113.7%, while this stock moved +450.8%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,950 | −2.3% |
| 2025 | ¥1,995 | ― |
Price1-year MA2-year MANikkei 225
All-Time High¥6,140May 2026
All-Time Low¥243Dec 2022
Total Change+88.2%vs Jan 2015
Annualized Return+5.5%
If you had invested ¥100,000 in Jan 2015, it would be worth ¥188,224 today (+88.2%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +229.5%, while this stock moved +88.2%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,950 | −2.3% |
| 2025 | ¥1,995 | +190.8% |
| 2024 | ¥686 | +99.4% |
| 2023 | ¥344 | +41.6% |
| 2022 | ¥243 | −28.7% |
| 2021 | ¥341 | −22.7% |
| 2020 | ¥441 | −28.8% |
| 2019 | ¥619 | +1.6% |
| 2018 | ¥609 | −13.1% |
| 2017 | ¥701 | +0.3% |
| 2016 | ¥699 | +21.6% |
| 2015 | ¥575 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Jan 2015). Please check the latest prices before trading.
Datasection Inc. (3905) financial indicators
PER, ROE and dividend yield are based on company forecasts, calculated from earnings reports and the closing price after each trading day.
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