HKEX · 8311 · stock
Perfect Optronics Limited (8311) stock price history
Every HKEX trading session of Perfect Optronics Limited from Feb 7, 2014 to Sep 28, 2026: 3,114 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.
8311 adjusted close, 2014 to 2026
- HK$3.56
- All time high, 2014
- HK$0.1850
- 52 week high, HK$0.0330 low
- 3,114
- Daily sessions since 2014
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2014 to 2026 series and minute bars.
8311 key facts
- Perfect Optronics Limited (8311) closed at HK$0.0540 on Sep 28, 2026 on HKEX.
- 8311's all time high close is HK$3.56, set on Oct 8, 2014; its all time low close is HK$0.0240 on Apr 22, 2025.
- 8311's 52 week range is HK$0.0330 to HK$0.1850.
- 8311 returned +63.6% over the year to Sep 28, 2026 and -75.3% over five years.
- Over ten years 8311 returned -94%, -24.6% a year compounded.
- 8311's deepest drawdown was -99.3% from Oct 8, 2014 to Apr 22, 2025.
- DataCedar holds 3,114 daily sessions of 8311 history from Feb 7, 2014 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
8311 price chart, 2014 to 2026
8311 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -8.5% |
| 3 months | -18.2% |
| 6 months | -46.0% |
| Year to date | -30.8% |
| 1 year | +63.6% |
| 3 years | -1.8% |
| 5 years | -75.3% |
| 10 years | -94.1% |
| Since Feb 7, 2014 | -90.5% |
| Compound annual growth, 12.6 years | -17.0% |
8311 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- HK$3.56 on Oct 8, 2014
- All time low close
- HK$0.0240 on Apr 22, 2025
- 52 week high
- HK$0.1850 on Dec 12, 2025
- 52 week low
- HK$0.0330 on Sep 29, 2025
- Deepest drawdown
- -99.3% from Oct 8, 2014 to Apr 22, 2025, not yet recovered
- Best single session
- +71.1% on Dec 12, 2025
- Worst single session
- -45.2% on Mar 4, 2026
- Volatility, 1 year annualised
- 160.5%
- Sessions closing higher, 1 year
- 28%
- Best calendar year
- 2025, +139%
- Worst calendar year
- 2023, -66%
8311 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. 2014 starts on Feb 7, 2014; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | HK$0.0760 | HK$0.1690 | HK$0.0460 | HK$0.0540 | -31.6% | 46.7M | 182 |
| 2025 | HK$0.0290 | HK$0.1850 | HK$0.0230 | HK$0.0790 | +139.4% | 83.5M | 246 |
| 2024 | HK$0.0510 | HK$0.1830 | HK$0.0240 | HK$0.0330 | -35.3% | 46.4M | 246 |
| 2023 | HK$0.1500 | HK$0.1810 | HK$0.0360 | HK$0.0510 | -66.0% | 9.3M | 243 |
| 2022 | HK$0.2700 | HK$0.3050 | HK$0.1320 | HK$0.1500 | -50.0% | 11.5M | 246 |
| 2021 | HK$0.2600 | HK$0.7100 | HK$0.1880 | HK$0.3000 | +29.3% | 55.5M | 247 |
| 2020 | HK$0.2100 | HK$0.3600 | HK$0.1300 | HK$0.2320 | +10.5% | 7.7M | 248 |
| 2019 | HK$0.2410 | HK$0.4100 | HK$0.1810 | HK$0.2100 | -12.9% | 19.9M | 246 |
| 2018 | HK$0.3950 | HK$0.4000 | HK$0.2220 | HK$0.2410 | -37.4% | 17M | 246 |
| 2017 | HK$0.7206 | HK$1.18 | HK$0.3300 | HK$0.3850 | -48.7% | 110.5M | 247 |
| 2016 | HK$1.05 | HK$1.26 | HK$0.5429 | HK$0.7503 | -28.7% | 129.1M | 247 |
| 2015 | HK$1.95 | HK$2.93 | HK$0.9829 | HK$1.05 | -46.1% | 431.2M | 247 |
| 2014 | HK$0.4341 | HK$3.66 | HK$0.4341 | HK$1.95 | n/a | 1.5B | 223 |
8311 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | HK$0.0540 | -1.8% |
| August 2026 | HK$0.0550 | -9.8% |
| July 2026 | HK$0.0610 | -10.3% |
| June 2026 | HK$0.0680 | +4.6% |
| May 2026 | HK$0.0650 | -19.8% |
| April 2026 | HK$0.0810 | -18.2% |
| March 2026 | HK$0.0990 | -22.0% |
| February 2026 | HK$0.1270 | +10.4% |
| January 2026 | HK$0.1150 | +45.6% |
| December 2025 | HK$0.0790 | +36.2% |
| November 2025 | HK$0.0580 | +45.0% |
| October 2025 | HK$0.0400 | +14.3% |
About the 8311 data
Daily bars. 3,114 sessions from Feb 7, 2014 to Sep 28, 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 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 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 Feb 7, 2014, 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/8311/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on HKEX
Common questions
8311 share price history
