JPX · 3928 · stock
Mynet Inc. (3928) stock price history
Every JPX trading session of Mynet Inc. from Dec 21, 2015 to Sep 28, 2026: 2,650 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.
3928 adjusted close, 2015 to 2026
- ¥4,791
- All time high, 2017
- ¥347.00
- 52 week high, ¥211.00 low
- 2,650
- Daily sessions since 2015
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2015 to 2026 series and minute bars.
3928 key facts
- Mynet Inc. (3928) closed at ¥240.00 on Sep 28, 2026 on JPX.
- 3928's all time high close is ¥4,791, set on Jan 30, 2017; its all time low close is ¥181.00 on Apr 7, 2025.
- 3928's 52 week range is ¥211.00 to ¥347.00.
- 3928 returned -2.8% over the year to Sep 28, 2026 and -61.9% over five years.
- Over ten years 3928 returned -82%, -15.7% a year compounded.
- 3928's deepest drawdown was -96.2% from Jan 30, 2017 to Apr 7, 2025.
- DataCedar holds 2,650 daily sessions of 3928 history from Dec 21, 2015 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
3928 price chart, 2015 to 2026
3928 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +1.7% |
| 3 months | +8.6% |
| 6 months | -15.5% |
| Year to date | -14.6% |
| 1 year | -2.8% |
| 3 years | -33.3% |
| 5 years | -61.9% |
| 10 years | -81.8% |
| Since Dec 21, 2015 | -80.4% |
| Compound annual growth, 10.8 years | -14.0% |
3928 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥4,791 on Jan 30, 2017
- All time low close
- ¥181.00 on Apr 7, 2025
- 52 week high
- ¥347.00 on Nov 7, 2025
- 52 week low
- ¥211.00 on Oct 14, 2025
- Deepest drawdown
- -96.2% from Jan 30, 2017 to Apr 7, 2025, not yet recovered
- Best single session
- +29.1% on Feb 14, 2024
- Worst single session
- -27.8% on Aug 5, 2024
- Volatility, 1 year annualised
- 42.0%
- Sessions closing higher, 1 year
- 42%
- Best calendar year
- 2016, +153%
- Worst calendar year
- 2019, -60%
3928 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. 2015 starts on Dec 21, 2015; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥275.00 | ¥321.00 | ¥216.00 | ¥240.00 | -14.6% | 7.1M | 178 |
| 2025 | ¥329.00 | ¥357.00 | ¥174.00 | ¥281.00 | -14.6% | 60.4M | 243 |
| 2024 | ¥284.00 | ¥528.00 | ¥208.00 | ¥329.00 | +15.8% | 48.7M | 245 |
| 2023 | ¥369.00 | ¥451.00 | ¥268.00 | ¥284.00 | -23.7% | 11.6M | 246 |
| 2022 | ¥609.65 | ¥609.65 | ¥354.00 | ¥372.00 | -38.0% | 16.8M | 244 |
| 2021 | ¥843.75 | ¥927.83 | ¥523.07 | ¥599.77 | -28.9% | 28.1M | 245 |
| 2020 | ¥699.05 | ¥1,686 | ¥418.45 | ¥843.75 | +22.8% | 69.8M | 242 |
| 2019 | ¥1,672 | ¥1,954 | ¥444.85 | ¥687.32 | -60.2% | 45.7M | 241 |
| 2018 | ¥1,641 | ¥2,084 | ¥940.54 | ¥1,729 | +5.4% | 36.9M | 261 |
| 2017 | ¥3,080 | ¥4,976 | ¥1,434 | ¥1,641 | -37.3% | 134.3M | 253 |
| 2016 | ¥1,058 | ¥2,982 | ¥596.39 | ¥2,615 | +153.1% | 130.1M | 245 |
| 2015 | ¥980.14 | ¥1,469 | ¥972.81 | ¥1,033 | n/a | 26M | 7 |
3928 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ¥240.00 | +2.1% |
| August 2026 | ¥235.00 | +0.4% |
| July 2026 | ¥234.00 | +6.8% |
| June 2026 | ¥219.00 | -10.6% |
| May 2026 | ¥245.00 | -7.5% |
| April 2026 | ¥265.00 | -4.0% |
| March 2026 | ¥276.00 | -8.0% |
| February 2026 | ¥300.00 | +6.0% |
| January 2026 | ¥283.00 | +0.7% |
| December 2025 | ¥281.00 | +7.7% |
| November 2025 | ¥261.00 | +15.5% |
| October 2025 | ¥226.00 | -6.2% |
About the 3928 data
Daily bars. 2,650 sessions from Dec 21, 2015 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 Dec 21, 2015, 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/3928/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
3928 share price history
