JPX · 4428 · stock
sinops Inc. (4428) stock price history
Every JPX trading session of sinops Inc. from Dec 25, 2018 to Sep 28, 2026: 1,889 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.
4428 adjusted close, 2018 to 2026
- ¥3,972
- All time high, 2019
- ¥953.10
- 52 week high, ¥603.18 low
- 1,889
- Daily sessions since 2018
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2018 to 2026 series and minute bars.
4428 key facts
- sinops Inc. (4428) closed at ¥696.00 on Sep 28, 2026 on JPX.
- 4428's all time high close is ¥3,972, set on May 7, 2019; its all time low close is ¥606.14 on May 18, 2026.
- 4428's 52 week range is ¥603.18 to ¥953.10.
- 4428 returned -25.8% over the year to Sep 28, 2026 and -41.6% over five years.
- Since Dec 25, 2018 4428 returned -54%, -9.5% a year compounded.
- 4428's deepest drawdown was -84.7% from May 7, 2019 to May 18, 2026.
- DataCedar holds 1,889 daily sessions of 4428 history from Dec 25, 2018 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
4428 price chart, 2018 to 2026
4428 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -2.2% |
| 3 months | +12.8% |
| 6 months | +3.5% |
| Year to date | -8.9% |
| 1 year | -25.8% |
| 3 years | -24.8% |
| 5 years | -41.6% |
| 10 years | n/a |
| Since Dec 25, 2018 | -54.0% |
| Compound annual growth, 7.8 years | -9.5% |
4428 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥3,972 on May 7, 2019
- All time low close
- ¥606.14 on May 18, 2026
- 52 week high
- ¥953.10 on Sep 29, 2025
- 52 week low
- ¥603.18 on May 20, 2026
- Deepest drawdown
- -84.7% from May 7, 2019 to May 18, 2026, not yet recovered
- Best single session
- +21.1% on Mar 24, 2020
- Worst single session
- -26.6% on Aug 5, 2024
- Volatility, 1 year annualised
- 27.4%
- Sessions closing higher, 1 year
- 42%
- Best calendar year
- 2019, +143%
- Worst calendar year
- 2020, -56%
4428 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. 2018 starts on Dec 25, 2018; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥767.05 | ¥791.73 | ¥603.18 | ¥696.00 | -8.9% | 1M | 178 |
| 2025 | ¥753.71 | ¥999.98 | ¥677.28 | ¥764.09 | +2.4% | 1.3M | 243 |
| 2024 | ¥960.25 | ¥1,507 | ¥718.19 | ¥745.97 | -21.7% | 3.4M | 245 |
| 2023 | ¥1,069 | ¥1,173 | ¥793.47 | ¥952.63 | -11.8% | 2.3M | 246 |
| 2022 | ¥1,034 | ¥1,446 | ¥781.26 | ¥1,080 | +2.6% | 6M | 244 |
| 2021 | ¥1,454 | ¥2,019 | ¥954.98 | ¥1,053 | -27.0% | 5.1M | 245 |
| 2020 | ¥3,160 | ¥3,319 | ¥986.91 | ¥1,441 | -56.2% | 13.4M | 242 |
| 2019 | ¥1,260 | ¥3,991 | ¥1,196 | ¥3,291 | +143.1% | 53.8M | 241 |
| 2018 | ¥1,431 | ¥1,827 | ¥1,318 | ¥1,354 | n/a | 12M | 5 |
4428 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ¥696.00 | -2.5% |
| August 2026 | ¥714.00 | +0.8% |
| July 2026 | ¥708.00 | +13.1% |
| June 2026 | ¥626.00 | +0.7% |
| May 2026 | ¥621.94 | -9.2% |
| April 2026 | ¥685.12 | +1.6% |
| March 2026 | ¥674.26 | -6.3% |
| February 2026 | ¥719.67 | -5.9% |
| January 2026 | ¥765.08 | +0.1% |
| December 2025 | ¥764.09 | -6.5% |
| November 2025 | ¥817.37 | -6.1% |
| October 2025 | ¥870.10 | -7.4% |
About the 4428 data
Daily bars. 1,889 sessions from Dec 25, 2018 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 29, 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 Dec 25, 2018, 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/4428/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
4428 share price history
