HKEX · 2251 · stock
Beijing Airdoc Technology Co., Ltd. (2251) stock price history
Every HKEX trading session of Beijing Airdoc Technology Co., Ltd. from Nov 5, 2021 to Nov 13, 2026: 1,198 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
2251 adjusted close, 2021 to 2026
- HK$68.00
- All time high, 2021
- HK$13.77
- 52 week high, HK$6.95 low
- 1,198
- 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.
2251 key facts
- Beijing Airdoc Technology Co., Ltd. (2251) closed at HK$8.71 on Nov 13, 2026 on HKEX.
- 2251's all time high close is HK$68.00, set on Nov 5, 2021; its all time low close is HK$7.90 on Sep 2, 2026.
- 2251's 52 week range is HK$6.95 to HK$13.77.
- 2251 returned -25.7% over the year to Nov 13, 2026 and -86.7% over five years.
- Since Nov 5, 2021 2251 returned -87%, -33.6% a year compounded.
- 2251's deepest drawdown was -88.4% from Nov 5, 2021 to Sep 2, 2026.
- DataCedar holds 1,198 daily sessions of 2251 history from Nov 5, 2021 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
2251 price chart, 2021 to 2026
2251 returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -4.3% |
| 3 months | -1.9% |
| 6 months | -25.2% |
| Year to date | -22.5% |
| 1 year | -25.7% |
| 3 years | -27.9% |
| 5 years | -86.7% |
| 10 years | n/a |
| Since Nov 5, 2021 | -87.2% |
| Compound annual growth, 5.0 years | -33.6% |
2251 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- HK$68.00 on Nov 5, 2021
- All time low close
- HK$7.90 on Sep 2, 2026
- 52 week high
- HK$13.77 on Jan 13, 2026
- 52 week low
- HK$6.95 on Sep 15, 2026
- Deepest drawdown
- -88.4% from Nov 5, 2021 to Sep 2, 2026, not yet recovered
- Best single session
- +20.7% on Feb 14, 2025
- Worst single session
- -30.3% on Mar 15, 2022
- Volatility, 1 year annualised
- 55.9%
- Sessions closing higher, 1 year
- 41%
- Best calendar year
- 2024, +2%
- Worst calendar year
- 2022, -64%
2251 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 Nov 5, 2021; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | HK$12.20 | HK$13.77 | HK$6.95 | HK$8.71 | -23.8% | 14.7M | 205 |
| 2025 | HK$12.30 | HK$16.00 | HK$10.00 | HK$11.43 | -7.2% | 25.5M | 236 |
| 2024 | HK$11.88 | HK$18.38 | HK$10.02 | HK$12.32 | +1.8% | 31.9M | 239 |
| 2023 | HK$14.20 | HK$19.48 | HK$7.88 | HK$12.10 | -14.5% | 43.4M | 239 |
| 2022 | HK$38.40 | HK$43.00 | HK$9.80 | HK$14.16 | -63.5% | 7.8M | 240 |
| 2021 | HK$67.60 | HK$74.95 | HK$34.60 | HK$38.80 | n/a | 19.1M | 39 |
2251 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | HK$8.71 | -5.1% |
| October 2026 | HK$9.18 | +2.0% |
| September 2026 | HK$9.00 | +4.7% |
| August 2026 | HK$8.60 | -12.1% |
| July 2026 | HK$9.78 | -11.7% |
| June 2026 | HK$11.08 | +8.5% |
| May 2026 | HK$10.21 | -14.1% |
| April 2026 | HK$11.88 | +16.8% |
| March 2026 | HK$10.17 | -12.3% |
| February 2026 | HK$11.59 | +0.6% |
| January 2026 | HK$11.52 | +0.8% |
| December 2025 | HK$11.43 | -3.5% |
About the 2251 data
Daily bars. 1,198 sessions from Nov 5, 2021 to Nov 13, 2026, one row per HKEX 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 17, 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 HKEX trading days; minute timestamps are UTC. Prices are in HKD. 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 Nov 5, 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/hkex%3A2251/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on HKEX
Common questions
2251 share price history
