JPX · 9955 · stock
The Yonkyu Co.,Ltd. (9955) stock price history
Every JPX trading session of The Yonkyu Co.,Ltd. from Jan 4, 2000 to Sep 28, 2026: 6,669 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.
9955 adjusted close, 2000 to 2026
- ¥3,153
- All time high, 2026
- ¥3,168
- 52 week high, ¥2,480 low
- 6,669
- Daily sessions since 2000
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.
9955 key facts
- The Yonkyu Co.,Ltd. (9955) closed at ¥2,825 on Sep 28, 2026 on JPX.
- 9955's all time high close is ¥3,153, set on Jan 21, 2026; its all time low close is ¥199.20 on Apr 28, 2009.
- 9955's 52 week range is ¥2,480 to ¥3,168.
- 9955 returned +3.2% over the year to Sep 28, 2026 and +31.7% over five years.
- Over ten years 9955 returned +187%, +11.1% a year compounded.
- 9955's deepest drawdown was -91.0% from Feb 7, 2000 to Apr 28, 2009.
- DataCedar holds 6,669 daily sessions of 9955 history from Jan 4, 2000 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
9955 price chart, 2000 to 2026
9955 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 | +2.8% |
| 6 months | -2.5% |
| Year to date | -0.2% |
| 1 year | +3.2% |
| 3 years | +29.0% |
| 5 years | +31.7% |
| 10 years | +187.2% |
| Since Jan 4, 2000 | +49.7% |
| Compound annual growth, 26.7 years | +1.5% |
9955 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥3,153 on Jan 21, 2026
- All time low close
- ¥199.20 on Apr 28, 2009
- 52 week high
- ¥3,168 on Feb 3, 2026
- 52 week low
- ¥2,480 on Nov 19, 2025
- Deepest drawdown
- -91.0% from Feb 7, 2000 to Apr 28, 2009, recovered Jun 29, 2021
- Best single session
- +19.3% on Feb 21, 2012
- Worst single session
- -19.9% on Mar 26, 2002
- Volatility, 1 year annualised
- 21.6%
- Sessions closing higher, 1 year
- 53%
- Best calendar year
- 2011, +57%
- Worst calendar year
- 2007, -57%
9955 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. 2000 starts on Jan 4, 2000; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥2,834 | ¥3,168 | ¥2,500 | ¥2,825 | -0.2% | 562.3K | 178 |
| 2025 | ¥1,993 | ¥2,875 | ¥1,981 | ¥2,830 | +41.1% | 1.3M | 243 |
| 2024 | ¥2,226 | ¥2,475 | ¥1,887 | ¥2,005 | -9.4% | 758.4K | 245 |
| 2023 | ¥2,756 | ¥3,009 | ¥2,149 | ¥2,213 | -18.3% | 917.4K | 246 |
| 2022 | ¥2,137 | ¥2,728 | ¥2,111 | ¥2,708 | +27.5% | 570.2K | 244 |
| 2021 | ¥1,521 | ¥2,247 | ¥1,516 | ¥2,125 | +39.7% | 970.7K | 245 |
| 2020 | ¥1,609 | ¥1,796 | ¥1,383 | ¥1,520 | -7.1% | 439.6K | 242 |
| 2019 | ¥1,413 | ¥1,647 | ¥1,278 | ¥1,636 | +15.8% | 310K | 241 |
| 2018 | ¥1,442 | ¥1,510 | ¥1,155 | ¥1,413 | -2.0% | 308.9K | 261 |
| 2017 | ¥1,011 | ¥1,485 | ¥996.56 | ¥1,442 | +42.7% | 1.4M | 253 |
| 2016 | ¥1,316 | ¥1,316 | ¥942.12 | ¥1,010 | -22.2% | 445.1K | 245 |
| 2015 | ¥1,231 | ¥1,444 | ¥1,161 | ¥1,298 | +4.3% | 589.5K | 244 |
| 2014 | ¥1,242 | ¥1,565 | ¥1,151 | ¥1,244 | -0.1% | 1.1M | 244 |
| 2013 | ¥825.41 | ¥1,347 | ¥818.31 | ¥1,246 | +52.1% | 3.4M | 245 |
| 2012 | ¥540.83 | ¥1,217 | ¥535.56 | ¥819.20 | +51.2% | 17.6M | 248 |
| 2011 | ¥345.05 | ¥543.46 | ¥341.60 | ¥541.71 | +57.0% | 3.5M | 245 |
| 2010 | ¥287.83 | ¥361.44 | ¥284.67 | ¥345.05 | +19.9% | 2M | 243 |
| 2009 | ¥304.71 | ¥383.21 | ¥196.67 | ¥287.83 | -2.8% | 3.3M | 243 |
| 2008 | ¥467.94 | ¥527.55 | ¥228.75 | ¥296.27 | -34.4% | 2.8M | 245 |
| 2007 | ¥1,055 | ¥1,082 | ¥432.07 | ¥451.63 | -57.3% | 1.3M | 245 |
| 2006 | ¥1,187 | ¥1,360 | ¥990.17 | ¥1,058 | -10.9% | 1.5M | 260 |
| 2005 | ¥985.42 | ¥1,203 | ¥980.27 | ¥1,187 | +20.5% | 2.3M | 260 |
| 2004 | ¥968.14 | ¥1,317 | ¥897.87 | ¥985.42 | +1.8% | 1.6M | 262 |
| 2003 | ¥1,072 | ¥1,288 | ¥858.83 | ¥968.14 | -9.7% | 1.6M | 261 |
| 2002 | ¥1,432 | ¥1,761 | ¥956.03 | ¥1,072 | -25.2% | 1.2M | 261 |
| 2001 | ¥1,284 | ¥2,075 | ¥1,200 | ¥1,432 | +11.5% | 857.2K | 261 |
| 2000 | ¥1,895 | ¥2,265 | ¥1,246 | ¥1,284 | n/a | 1.6M | 259 |
9955 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ¥2,825 | -0.7% |
| August 2026 | ¥2,844 | +1.9% |
| July 2026 | ¥2,790 | +3.2% |
| June 2026 | ¥2,703 | -3.0% |
| May 2026 | ¥2,787 | +0.3% |
| April 2026 | ¥2,780 | -2.2% |
| March 2026 | ¥2,842 | -7.1% |
| February 2026 | ¥3,059 | -0.8% |
| January 2026 | ¥3,083 | +9.0% |
| December 2025 | ¥2,830 | +9.5% |
| November 2025 | ¥2,585 | -1.8% |
| October 2025 | ¥2,633 | -0.4% |
About the 9955 data
Daily bars. 6,669 sessions from Jan 4, 2000 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 28, 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 4, 2000, 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/9955/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
9955 share price history
