JPX · 4491 · stock
Computer Management Co., Ltd. (4491) stock price history
Every JPX trading session of Computer Management Co., Ltd. from Mar 11, 2020 to Sep 28, 2026: 1,599 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.
4491 adjusted close, 2020 to 2026
- ¥3,773
- All time high, 2026
- ¥3,773
- 52 week high, ¥2,426 low
- 1,599
- Daily sessions since 2020
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2020 to 2026 series and minute bars.
4491 key facts
- Computer Management Co., Ltd. (4491) closed at ¥3,375 on Sep 28, 2026 on JPX.
- 4491's all time high close is ¥3,773, set on Jan 8, 2026; its all time low close is ¥1,053 on Mar 19, 2020.
- 4491's 52 week range is ¥2,426 to ¥3,773.
- 4491 returned +9.5% over the year to Sep 28, 2026 and +140.1% over five years.
- Since Mar 11, 2020 4491 returned +114%, +12.4% a year compounded.
- 4491's deepest drawdown was -33.1% from Mar 11, 2020 to Mar 19, 2020.
- DataCedar holds 1,599 daily sessions of 4491 history from Mar 11, 2020 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
4491 price chart, 2020 to 2026
4491 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +3.5% |
| 3 months | +13.3% |
| 6 months | +14.8% |
| Year to date | +27.4% |
| 1 year | +9.5% |
| 3 years | +146.8% |
| 5 years | +140.1% |
| 10 years | n/a |
| Since Mar 11, 2020 | +114.5% |
| Compound annual growth, 6.5 years | +12.4% |
4491 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥3,773 on Jan 8, 2026
- All time low close
- ¥1,053 on Mar 19, 2020
- 52 week high
- ¥3,773 on Jan 8, 2026
- 52 week low
- ¥2,426 on Oct 7, 2025
- Deepest drawdown
- -33.1% from Mar 11, 2020 to Mar 19, 2020, recovered Apr 17, 2020
- Best single session
- +22.2% on May 8, 2025
- Worst single session
- -18.0% on Mar 12, 2020
- Volatility, 1 year annualised
- 35.8%
- Sessions closing higher, 1 year
- 48%
- Growth of 1 since 2020
- 2.1×
- Best calendar year
- 2025, +75%
- Worst calendar year
- 2022, -4%
4491 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. 2020 starts on Mar 11, 2020; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥2,654 | ¥3,773 | ¥2,641 | ¥3,375 | +27.4% | 606.9K | 178 |
| 2025 | ¥1,587 | ¥3,097 | ¥1,498 | ¥2,650 | +75.2% | 1.1M | 243 |
| 2024 | ¥1,408 | ¥1,663 | ¥1,382 | ¥1,512 | +8.8% | 301.8K | 245 |
| 2023 | ¥1,368 | ¥1,592 | ¥1,289 | ¥1,390 | +1.5% | 620.4K | 246 |
| 2022 | ¥1,448 | ¥1,513 | ¥1,184 | ¥1,370 | -4.4% | 406.4K | 244 |
| 2021 | ¥1,234 | ¥1,638 | ¥1,174 | ¥1,432 | +20.3% | 1.5M | 245 |
| 2020 | ¥1,875 | ¥1,946 | ¥1,042 | ¥1,190 | n/a | 11.7M | 198 |
4491 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ¥3,375 | +4.0% |
| August 2026 | ¥3,245 | +3.0% |
| July 2026 | ¥3,150 | +1.9% |
| June 2026 | ¥3,090 | +5.3% |
| May 2026 | ¥2,934 | -3.2% |
| April 2026 | ¥3,030 | +4.3% |
| March 2026 | ¥2,906 | -0.6% |
| February 2026 | ¥2,924 | +0.6% |
| January 2026 | ¥2,907 | +9.7% |
| December 2025 | ¥2,650 | +0.5% |
| November 2025 | ¥2,636 | +2.4% |
| October 2025 | ¥2,573 | -2.5% |
About the 4491 data
Daily bars. 1,599 sessions from Mar 11, 2020 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 Mar 11, 2020, 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/4491/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
4491 share price history
