TWSE · 6901 · stock
Diamond Biofund Inc. (6901) stock price history
Every TWSE trading session of Diamond Biofund Inc. from Jul 25, 2022 to Sep 24, 2026: 1,014 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 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.
6901 adjusted close, 2022 to 2026
- NT$189.54
- All time high, 2022
- NT$22.40
- 52 week high, NT$12.05 low
- 1,014
- Daily sessions since 2022
Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2022 to 2026 series and minute bars.
6901 key facts
- Diamond Biofund Inc. (6901) closed at NT$15.70 on Sep 24, 2026 on TWSE.
- 6901's all time high close is NT$189.54, set on Jul 25, 2022; its all time low close is NT$12.25 on May 27, 2026.
- 6901's 52 week range is NT$12.05 to NT$22.40.
- 6901 returned -18.0% over the year to Sep 24, 2026.
- Since Jul 25, 2022 6901 returned -92%, -45.0% a year compounded.
- 6901's deepest drawdown was -93.5% from Jul 25, 2022 to May 27, 2026.
- DataCedar holds 1,014 daily sessions of 6901 history from Jul 25, 2022 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.
6901 price chart, 2022 to 2026
6901 returns
Price return from the last close on or before the window start to Sep 24, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -5.4% |
| 3 months | -9.0% |
| 6 months | +12.9% |
| Year to date | -6.8% |
| 1 year | -18.0% |
| 3 years | -64.8% |
| 5 years | n/a |
| 10 years | n/a |
| Since Jul 25, 2022 | -91.7% |
| Compound annual growth, 4.2 years | -45.0% |
6901 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- NT$189.54 on Jul 25, 2022
- All time low close
- NT$12.25 on May 27, 2026
- 52 week high
- NT$22.40 on Jul 9, 2026
- 52 week low
- NT$12.05 on May 27, 2026
- Deepest drawdown
- -93.5% from Jul 25, 2022 to May 27, 2026, not yet recovered
- Best single session
- +40.8% on Aug 22, 2022
- Worst single session
- -29.2% on Sep 19, 2023
- Volatility, 1 year annualised
- 45.7%
- Sessions closing higher, 1 year
- 44%
- Best calendar year
- 2023, -25%
- Worst calendar year
- 2025, -50%
6901 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. 2022 starts on Jul 25, 2022; 2026 runs to Sep 24, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | NT$16.50 | NT$22.40 | NT$12.05 | NT$15.70 | -4.8% | 369.1M | 178 |
| 2025 | NT$32.25 | NT$35.00 | NT$15.60 | NT$16.50 | -49.5% | 160.4M | 242 |
| 2024 | NT$49.10 | NT$49.15 | NT$31.10 | NT$32.70 | -33.0% | 381.7M | 242 |
| 2023 | NT$65.66 | NT$80.62 | NT$40.35 | NT$48.80 | -24.9% | 354.4M | 239 |
| 2022 | NT$27.83 | NT$198.82 | NT$27.83 | NT$64.99 | n/a | 157.4M | 113 |
6901 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | NT$15.70 | -0.9% |
| August 2026 | NT$15.85 | -2.8% |
| July 2026 | NT$16.30 | -13.3% |
| June 2026 | NT$18.80 | +51.6% |
| May 2026 | NT$12.40 | -9.2% |
| April 2026 | NT$13.65 | -1.8% |
| March 2026 | NT$13.90 | -20.3% |
| February 2026 | NT$17.45 | +2.6% |
| January 2026 | NT$17.00 | +3.0% |
| December 2025 | NT$16.50 | -2.4% |
| November 2025 | NT$16.90 | -7.1% |
| October 2025 | NT$18.20 | -6.4% |
About the 6901 data
Daily bars. 1,014 sessions from Jul 25, 2022 to Sep 24, 2026, one row per TWSE 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 15, 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 TWSE trading days; minute timestamps are UTC. Prices are in TWD. 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 Jul 25, 2022, 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/6901/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on TWSE
Common questions
6901 share price history
