JPX · 4820 · stock
EM Systems Co., Ltd. (4820) stock price history
Every JPX trading session of EM Systems Co., Ltd. from May 2, 2003 to Nov 12, 2026: 5,749 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.
4820 adjusted close, 2003 to 2026
- ¥987.20
- All time high, 2022
- ¥809.82
- 52 week high, ¥477.07 low
- 5,749
- Daily sessions since 2003
Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2003 to 2026 series and minute bars.
4820 key facts
- EM Systems Co., Ltd. (4820) closed at ¥569.00 on Nov 12, 2026 on JPX.
- 4820's all time high close is ¥987.20, set on Aug 5, 2022; its all time low close is ¥27.35 on Oct 8, 2008.
- 4820's 52 week range is ¥477.07 to ¥809.82.
- 4820 returned -28.5% over the year to Nov 12, 2026 and -15.0% over five years.
- Over ten years 4820 returned +89%, +6.6% a year compounded.
- 4820's deepest drawdown was -92.8% from Jan 12, 2006 to Oct 8, 2008.
- DataCedar holds 5,749 daily sessions of 4820 history from May 2, 2003 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
4820 price chart, 2003 to 2026
4820 returns
Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.7% |
| 3 months | +2.2% |
| 6 months | -12.2% |
| Year to date | -27.6% |
| 1 year | -28.5% |
| 3 years | -14.1% |
| 5 years | -15.0% |
| 10 years | +88.7% |
| Since May 2, 2003 | +813.9% |
| Compound annual growth, 23.5 years | +9.9% |
4820 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥987.20 on Aug 5, 2022
- All time low close
- ¥27.35 on Oct 8, 2008
- 52 week high
- ¥809.82 on Dec 1, 2025
- 52 week low
- ¥477.07 on Jun 2, 2026
- Deepest drawdown
- -92.8% from Jan 12, 2006 to Oct 8, 2008, recovered May 1, 2017
- Best single session
- +19.6% on Jun 3, 2009
- Worst single session
- -17.4% on May 9, 2018
- Volatility, 1 year annualised
- 26.8%
- Sessions closing higher, 1 year
- 47%
- Growth of 1 since 2003
- 9.1×
- Best calendar year
- 2005, +365%
- Worst calendar year
- 2007, -68%
4820 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. 2003 starts on May 2, 2003; 2026 runs to Nov 12, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥783.90 | ¥790.83 | ¥477.07 | ¥569.00 | -27.6% | 29.7M | 205 |
| 2025 | ¥735.57 | ¥815.60 | ¥605.76 | ¥785.88 | +6.8% | 24.9M | 243 |
| 2024 | ¥633.47 | ¥741.80 | ¥457.26 | ¥735.57 | +17.8% | 26.9M | 245 |
| 2023 | ¥711.43 | ¥839.82 | ¥569.53 | ¥624.51 | -12.8% | 16.4M | 246 |
| 2022 | ¥658.07 | ¥991.55 | ¥540.15 | ¥715.83 | +9.4% | 19.7M | 244 |
| 2021 | ¥811.53 | ¥856.85 | ¥592.78 | ¥654.60 | -19.2% | 13.5M | 245 |
| 2020 | ¥814.54 | ¥870.86 | ¥585.90 | ¥809.82 | -1.4% | 29.6M | 242 |
| 2019 | ¥409.85 | ¥945.68 | ¥409.02 | ¥821.27 | +94.5% | 43.6M | 241 |
| 2018 | ¥525.15 | ¥594.01 | ¥384.94 | ¥422.31 | -19.6% | 47.1M | 260 |
| 2017 | ¥326.05 | ¥544.23 | ¥323.24 | ¥525.15 | +62.5% | 32.5M | 252 |
| 2016 | ¥256.38 | ¥351.13 | ¥219.98 | ¥323.24 | +26.3% | 23.9M | 244 |
| 2015 | ¥166.16 | ¥267.42 | ¥151.81 | ¥255.88 | +53.8% | 21.7M | 242 |
| 2014 | ¥188.73 | ¥244.98 | ¥155.08 | ¥166.35 | -11.0% | 43.3M | 244 |
| 2013 | ¥165.17 | ¥218.59 | ¥139.28 | ¥186.85 | +14.7% | 49.3M | 245 |
| 2012 | ¥91.13 | ¥200.43 | ¥88.85 | ¥162.94 | +78.8% | 26.9M | 248 |
| 2011 | ¥59.47 | ¥99.42 | ¥49.09 | ¥91.13 | +55.5% | 7.5M | 240 |
| 2010 | ¥36.49 | ¥66.13 | ¥33.82 | ¥58.59 | +61.3% | 5.5M | 231 |
| 2009 | ¥46.59 | ¥74.63 | ¥32.78 | ¥36.32 | -15.8% | 11.8M | 237 |
| 2008 | ¥91.38 | ¥92.13 | ¥26.06 | ¥43.14 | -54.5% | 35.5M | 243 |
| 2007 | ¥293.99 | ¥334.19 | ¥81.25 | ¥94.73 | -67.8% | 106.1M | 242 |
| 2006 | ¥272.21 | ¥387.80 | ¥136.94 | ¥293.99 | +8.0% | 122.5M | 252 |
| 2005 | ¥58.55 | ¥316.60 | ¥53.61 | ¥272.21 | +364.9% | 74.9M | 243 |
| 2004 | ¥54.79 | ¥85.43 | ¥54.79 | ¥58.55 | +6.9% | 11.8M | 256 |
| 2003 | ¥64.34 | ¥71.39 | ¥49.81 | ¥54.79 | n/a | 7M | 159 |
4820 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | ¥569.00 | +1.1% |
| October 2026 | ¥563.00 | -2.8% |
| September 2026 | ¥579.00 | -4.1% |
| August 2026 | ¥604.00 | +8.2% |
| July 2026 | ¥558.00 | +13.9% |
| June 2026 | ¥490.00 | -0.8% |
| May 2026 | ¥493.90 | -24.5% |
| April 2026 | ¥654.24 | +0.9% |
| March 2026 | ¥648.30 | -8.3% |
| February 2026 | ¥706.70 | -1.8% |
| January 2026 | ¥719.57 | -8.4% |
| December 2025 | ¥785.88 | -2.1% |
About the 4820 data
Daily bars. 5,749 sessions from May 2, 2003 to Nov 12, 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 Oct 23, 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 May 2, 2003, 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/jpx%3A4820/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
4820 share price history
