No.1
Disclosure
2026/09/30 13:00
（開示事項の経過）連結子会社の異動（株式譲渡）の完了および特別利益の計上に関するお知らせ
4388 AI,Inc.エーアイTSE Standard / Information & Communication
1 post
AI,Inc. (4388) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
AI,Inc. (4388) Stock Price HistoryNear an all-time low
AI,Inc. closed at ¥333 on Oct 30, 2026, −8.0% over 1 month, −30.6% over 1 year.
Price5-day MA25-day MANikkei 225Disclosures
1-Month High¥362Sep 30
1-Month Low¥333Oct 30
1-Week Change−1.2%vs Oct 22
1-Month Change−8.0%vs Sep 30
If you had invested ¥100,000 1 month ago, it would be worth ¥91,989 today (−8.0%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved −5.2%, while this stock moved −8.0%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥333 | −6 | −1.77% |
| Oct 29 (Thu) | ¥339 | +0 | +0.00% |
| Oct 28 (Wed) | ¥339 | −1 | −0.29% |
| Oct 27 (Tue) | ¥340 | +3 | +0.89% |
| Oct 26 (Mon) | ¥337 | +0 | +0.00% |
| Oct 22 (Thu) | ¥337 | −6 | −1.75% |
| Oct 21 (Wed) | ¥343 | +0 | +0.00% |
| Oct 19 (Mon) | ¥343 | −5 | −1.44% |
| Oct 16 (Fri) | ¥348 | −1 | −0.29% |
| Oct 15 (Thu) | ¥349 | −3 | −0.85% |
Price5-day MA25-day MANikkei 225Disclosures
3-Month High¥379Sep 8
3-Month Low¥333Oct 30
1-Month Change−8.0%vs Sep 30
3-Month Change−6.2%vs Jul 30
If you had invested ¥100,000 3 months ago, it would be worth ¥93,803 today (−6.2%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +2.3%, while this stock moved −6.2%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥333 | −6 | −1.77% |
| Oct 29 (Thu) | ¥339 | +0 | +0.00% |
| Oct 28 (Wed) | ¥339 | −1 | −0.29% |
| Oct 27 (Tue) | ¥340 | +3 | +0.89% |
| Oct 26 (Mon) | ¥337 | +0 | +0.00% |
| Oct 22 (Thu) | ¥337 | −6 | −1.75% |
| Oct 21 (Wed) | ¥343 | +0 | +0.00% |
| Oct 19 (Mon) | ¥343 | −5 | −1.44% |
| Oct 16 (Fri) | ¥348 | −1 | −0.29% |
| Oct 15 (Thu) | ¥349 | −3 | −0.85% |
Price25-day MA75-day MANikkei 225Disclosures
6-Month High¥403May 11
6-Month Low¥333Oct 30
3-Month Change−6.2%vs Jul 30
6-Month Change−14.8%vs Apr 30
If you had invested ¥100,000 6 months ago, it would be worth ¥85,166 today (−14.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +6.8%, while this stock moved −14.8%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥333 | −8.0% |
| Sep 2026 | ¥362 | −4.0% |
| Aug 2026 | ¥377 | +6.2% |
| Jul 2026 | ¥355 | −2.5% |
| Jun 2026 | ¥364 | −2.9% |
| May 2026 | ¥375 | −4.1% |
| Apr 2026 | ¥391 | −1.8% |
Price25-day MA75-day MANikkei 225Disclosures
52-Week High¥516Nov 13
52-Week Low¥333Oct 30
Year to Date−20.5%vs Dec 30
From 52-Week High−35.5%Nov 13
If you had invested ¥100,000 1 year ago, it would be worth ¥69,375 today (−30.6%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +23.3%, while this stock moved −30.6%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥333 | −8.0% |
| Sep 2026 | ¥362 | −4.0% |
| Aug 2026 | ¥377 | +6.2% |
| Jul 2026 | ¥355 | −2.5% |
| Jun 2026 | ¥364 | −2.9% |
| May 2026 | ¥375 | −4.1% |
| Apr 2026 | ¥391 | −1.8% |
| Mar 2026 | ¥398 | −5.7% |
| Feb 2026 | ¥422 | −0.7% |
| Jan 2026 | ¥425 | +1.4% |
| Dec 2025 | ¥419 | −10.7% |
| Nov 2025 | ¥469 | −2.9% |
| Oct 2025 | ¥483 | ― |
Price13-week MA26-week MANikkei 225
3-Year High¥965Feb 26, 2024
3-Year Low¥333Oct 30, 2026
Annualized Return−27.4%
Max Drawdown−65.5%
If you had invested ¥100,000 3 years ago, it would be worth ¥38,320 today (−61.7%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +98.1%, while this stock moved −61.7%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥333 | −20.5% |
| 2025 | ¥419 | ― |
Price13-week MA26-week MANikkei 225
5-Year High¥1,529Mar 6, 2023
5-Year Low¥333Oct 30, 2026
Annualized Return−21.3%
Max Drawdown−78.2%
If you had invested ¥100,000 5 years ago, it would be worth ¥30,273 today (−69.7%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +113.7%, while this stock moved −69.7%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥333 | −20.5% |
| 2025 | ¥419 | ― |
Price1-year MA2-year MANikkei 225
All-Time High¥3,810Jul 2018
All-Time Low¥333Oct 2026
Total Change−90.2%vs Jun 2018
Annualized Return−24.3%
If you had invested ¥100,000 in Jun 2018, it would be worth ¥9,794 today (−90.2%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +183.8%, while this stock moved −90.2%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥333 | −20.5% |
| 2025 | ¥419 | −14.8% |
| 2024 | ¥492 | −33.6% |
| 2023 | ¥741 | +22.3% |
| 2022 | ¥606 | −28.6% |
| 2021 | ¥849 | −62.8% |
| 2020 | ¥2,280 | +20.2% |
| 2019 | ¥1,897 | +14.8% |
| 2018 | ¥1,653 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Jun 2018). Please check the latest prices before trading.
AI,Inc. (4388) financial indicators
See all financial indicators for AI,Inc. (market cap, DOE, equity ratio, EV, EBITDA, ROIC and more)
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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