No.1
Disclosure
2026/09/25 16:00
日本ナレッジ株式会社との資本提携契約の締結及び同社株式取得（持分法適用関連会社化）に関するお知らせ
9658 BUSINESS BRAIN SHOWA・OTA INC.ビジネスブレイン太田昭和TSE Prime / Information & Communication
1 post
BUSINESS BRAIN SHOWA・OTA INC. (9658) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
BUSINESS BRAIN SHOWA・OTA INC. (9658) Stock Price HistoryAt an all-time high
BUSINESS BRAIN SHOWA・OTA INC. closed at ¥1,314 on Oct 30, 2026, +16.4% over 1 month, +29.5% over 1 year.
Price5-day MA25-day MANikkei 225
1-Month High¥1,314Oct 30
1-Month Low¥1,122Oct 2
1-Week Change+2.6%vs Oct 23
1-Month Change+16.4%vs Sep 30
If you had invested ¥100,000 1 month ago, it would be worth ¥116,386 today (+16.4%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved −5.2%, while this stock moved +16.4%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥1,314 | +81 | +6.57% |
| Oct 29 (Thu) | ¥1,233 | −28 | −2.22% |
| Oct 28 (Wed) | ¥1,261 | −13 | −1.02% |
| Oct 27 (Tue) | ¥1,274 | +4 | +0.31% |
| Oct 26 (Mon) | ¥1,270 | −11 | −0.86% |
| Oct 23 (Fri) | ¥1,281 | −9 | −0.70% |
| Oct 22 (Thu) | ¥1,290 | +42 | +3.37% |
| Oct 21 (Wed) | ¥1,248 | +15 | +1.22% |
| Oct 20 (Tue) | ¥1,233 | −22 | −1.75% |
| Oct 19 (Mon) | ¥1,255 | −1 | −0.08% |
Price5-day MA25-day MANikkei 225Disclosures
3-Month High¥1,314Oct 30
3-Month Low¥1,002Aug 4
1-Month Change+16.4%vs Sep 30
3-Month Change+23.1%vs Jul 30
If you had invested ¥100,000 3 months ago, it would be worth ¥123,149 today (+23.1%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +2.3%, while this stock moved +23.1%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥1,314 | +81 | +6.57% |
| Oct 29 (Thu) | ¥1,233 | −28 | −2.22% |
| Oct 28 (Wed) | ¥1,261 | −13 | −1.02% |
| Oct 27 (Tue) | ¥1,274 | +4 | +0.31% |
| Oct 26 (Mon) | ¥1,270 | −11 | −0.86% |
| Oct 23 (Fri) | ¥1,281 | −9 | −0.70% |
| Oct 22 (Thu) | ¥1,290 | +42 | +3.37% |
| Oct 21 (Wed) | ¥1,248 | +15 | +1.22% |
| Oct 20 (Tue) | ¥1,233 | −22 | −1.75% |
| Oct 19 (Mon) | ¥1,255 | −1 | −0.08% |
Price25-day MA75-day MANikkei 225Disclosures
6-Month High¥1,314Oct 30
6-Month Low¥916May 14
3-Month Change+23.1%vs Jul 30
6-Month Change+42.5%vs Apr 30
If you had invested ¥100,000 6 months ago, it would be worth ¥142,516 today (+42.5%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +6.8%, while this stock moved +42.5%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥1,314 | +16.4% |
| Sep 2026 | ¥1,129 | +1.4% |
| Aug 2026 | ¥1,113 | +7.5% |
| Jul 2026 | ¥1,035 | +3.9% |
| Jun 2026 | ¥996 | −3.9% |
| May 2026 | ¥1,036 | +12.4% |
| Apr 2026 | ¥922 | −1.1% |
Price25-day MA75-day MANikkei 225Disclosures
52-Week High¥1,314Oct 30
52-Week Low¥916May 14
Year to Date+10.7%vs Dec 30
From 52-Week High+0.0%Oct 30
If you had invested ¥100,000 1 year ago, it would be worth ¥129,458 today (+29.5%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +23.3%, while this stock moved +29.5%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥1,314 | +16.4% |
| Sep 2026 | ¥1,129 | +1.4% |
| Aug 2026 | ¥1,113 | +7.5% |
| Jul 2026 | ¥1,035 | +3.9% |
| Jun 2026 | ¥996 | −3.9% |
| May 2026 | ¥1,036 | +12.4% |
| Apr 2026 | ¥922 | −1.1% |
| Mar 2026 | ¥932 | −9.1% |
| Feb 2026 | ¥1,025 | −8.3% |
| Jan 2026 | ¥1,118 | −5.8% |
| Dec 2025 | ¥1,187 | +1.3% |
| Nov 2025 | ¥1,172 | +14.1% |
| Oct 2025 | ¥1,027 | ― |
Price13-week MA26-week MANikkei 225
3-Year High¥1,314Oct 30, 2026
3-Year Low¥598Sep 9, 2024
Annualized Return+24.3%
Max Drawdown−22.4%
If you had invested ¥100,000 3 years ago, it would be worth ¥192,012 today (+92.0%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +98.1%, while this stock moved +92.0%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,314 | +10.7% |
| 2025 | ¥1,187 | ― |
Price13-week MA26-week MANikkei 225
5-Year High¥1,314Oct 30, 2026
5-Year Low¥443Mar 7, 2022
Annualized Return+15.8%
Max Drawdown−35.2%
If you had invested ¥100,000 5 years ago, it would be worth ¥207,802 today (+107.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +113.7%, while this stock moved +107.8%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,314 | +10.7% |
| 2025 | ¥1,187 | ― |
Price1-year MA2-year MANikkei 225
All-Time High¥1,314Oct 2026
All-Time Low¥33.3May 2003
Total Change+551.6%vs Feb 2000
Annualized Return+7.3%
If you had invested ¥100,000 in Feb 2000, it would be worth ¥651,569 today (+551.6%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +211.2%, while this stock moved +551.6%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥1,314 | +10.7% |
| 2025 | ¥1,187 | +66.2% |
| 2024 | ¥714 | −1.8% |
| 2023 | ¥727 | +17.6% |
| 2022 | ¥618 | −9.5% |
| 2021 | ¥683 | +19.5% |
| 2020 | ¥572 | +46.4% |
| 2019 | ¥391 | +29.9% |
| 2018 | ¥301 | +3.3% |
| 2017 | ¥291 | +73.7% |
| 2016 | ¥168 | −1.5% |
| 2015 | ¥170 | −0.1% |
| 2014 | ¥170 | +30.2% |
| 2013 | ¥131 | +55.4% |
| 2012 | ¥84.2 | +18.8% |
| 2011 | ¥70.8 | +6.5% |
| 2010 | ¥66.5 | −11.5% |
| 2009 | ¥75.2 | +3.2% |
| 2008 | ¥72.8 | −41.7% |
| 2007 | ¥125 | +19.0% |
| 2006 | ¥105 | −3.4% |
| 2005 | ¥109 | +110.3% |
| 2004 | ¥51.7 | +42.2% |
| 2003 | ¥36.3 | −15.2% |
| 2002 | ¥42.8 | −34.1% |
| 2001 | ¥65.0 | −4.9% |
| 2000 | ¥68.3 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Feb 2000). Please check the latest prices before trading.
BUSINESS BRAIN SHOWA・OTA INC. (9658) financial indicators
PER, ROE and dividend yield are based on company forecasts, calculated from earnings reports and the closing price after each trading day.
Recent disclosures (TDnet, in Japanese)
Shareholder benefits of BUSINESS BRAIN SHOWA・OTA INC.
- Aug 28, 2026 Changed: 株主優待制度の変更に関するお知らせ
Details and disclosure history of BUSINESS BRAIN SHOWA・OTA INC.'s shareholder benefits
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