JPX · 4373 · stock
Simplex Holdings, Inc. (4373) stock price history
Every JPX trading session of Simplex Holdings, Inc. from Sep 22, 2021 to Nov 13, 2026: 1,253 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.
4373 adjusted close, 2021 to 2026
- ¥1,282
- All time high, 2026
- ¥1,311
- 52 week high, ¥741.24 low
- 1,253
- Daily sessions since 2021
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
4373 key facts
- Simplex Holdings, Inc. (4373) closed at ¥1,189 on Nov 13, 2026 on JPX.
- 4373's all time high close is ¥1,282, set on Oct 22, 2026; its all time low close is ¥342.08 on Feb 24, 2022.
- 4373's 52 week range is ¥741.24 to ¥1,311.
- 4373 returned +8.1% over the year to Nov 13, 2026 and +65.6% over five years.
- Since Sep 22, 2021 4373 returned +150%, +19.5% a year compounded.
- 4373's deepest drawdown was -55.5% from Nov 16, 2021 to Feb 24, 2022.
- DataCedar holds 1,253 daily sessions of 4373 history from Sep 22, 2021 and minute bars from Sep 14, 2026, adjusted for splits and dividends, served by the API under a key.
4373 price chart, 2021 to 2026
4373 returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.4% |
| 3 months | +5.4% |
| 6 months | +24.8% |
| Year to date | +15.7% |
| 1 year | +8.1% |
| 3 years | +107.7% |
| 5 years | +65.6% |
| 10 years | n/a |
| Since Sep 22, 2021 | +149.6% |
| Compound annual growth, 5.1 years | +19.5% |
4373 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ¥1,282 on Oct 22, 2026
- All time low close
- ¥342.08 on Feb 24, 2022
- 52 week high
- ¥1,311 on Oct 16, 2026
- 52 week low
- ¥741.24 on Feb 24, 2026
- Deepest drawdown
- -55.5% from Nov 16, 2021 to Feb 24, 2022, recovered May 1, 2025
- Best single session
- +19.7% on May 1, 2025
- Worst single session
- -21.7% on Jan 31, 2022
- Volatility, 1 year annualised
- 42.8%
- Sessions closing higher, 1 year
- 46%
- Growth of 1 since 2021
- 2.5×
- Best calendar year
- 2025, +72%
- Worst calendar year
- 2022, -25%
4373 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. 2021 starts on Sep 22, 2021; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ¥1,021 | ¥1,311 | ¥741.24 | ¥1,189 | +15.7% | 220.5M | 206 |
| 2025 | ¥597.86 | ¥1,198 | ¥558.45 | ¥1,028 | +71.9% | 163.6M | 243 |
| 2024 | ¥652.75 | ¥711.04 | ¥435.18 | ¥597.86 | -7.9% | 195.1M | 245 |
| 2023 | ¥492.54 | ¥702.22 | ¥465.14 | ¥649.20 | +32.4% | 152.5M | 246 |
| 2022 | ¥661.49 | ¥666.58 | ¥339.30 | ¥490.43 | -25.5% | 309.7M | 244 |
| 2021 | ¥383.94 | ¥779.45 | ¥381.63 | ¥658.02 | n/a | 369.7M | 69 |
4373 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | ¥1,189 | +2.0% |
| October 2026 | ¥1,166 | +5.2% |
| September 2026 | ¥1,108 | -11.2% |
| August 2026 | ¥1,248 | +10.3% |
| July 2026 | ¥1,131 | +20.7% |
| June 2026 | ¥937.00 | -11.9% |
| May 2026 | ¥1,064 | +21.0% |
| April 2026 | ¥879.00 | +9.7% |
| March 2026 | ¥801.00 | -5.1% |
| February 2026 | ¥843.92 | -10.0% |
| January 2026 | ¥937.79 | -8.8% |
| December 2025 | ¥1,028 | -4.5% |
About the 4373 data
Daily bars. 1,253 sessions from Sep 22, 2021 to Nov 13, 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 Sep 22, 2021, 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%3A4373/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on JPX
Common questions
4373 share price history
