> For the complete documentation index, see [llms.txt](https://docs.asterdex.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.asterdex.com/trading/perpetuals/stock-perpetuals/hk-stocks.md).
# HK Stocks
### Trading Sessions & Order Price Caps
| **Session** | **HK local time** | **Limit Order Price Cap** | **Market Order Price Cap** |
| ---------------------------------------------- | ------------------------------- | ---------------------------------------------------- | --------------------------------------------------------------------------- |
| Market Open (Morning Session)
| 09:30 AM →12:00 PM HKT | the same as crypto perpetual trading pairs | the same as crypto perpetual trading pairs |
| Lunch Break (off hours) | 12:00 PM → 1:00 PM HKT | > 5% more aggressive than MarkPrice will be rejected | > 5% more aggressive than MarkPrice will be rejected |
| Market Open (Afternoon Session)
| 1:00 PM\~4:00 PM HKT | the same as crypto perpetual trading pairs | the same as crypto perpetual trading pairs |
| Market Close（off hrs）
| 4:00 PM\~9:30 AM HKT (next day) | > 5% more aggressive than MarkPrice will be rejected | Can fill up to 5% more aggressive than MarkPrice, the rest will be canceled |
### EWMA-Smoothed Mode is active during:
| **Session** | **HK local time** |
| ------------------------------- | ----------------------------------- |
| Market Close (off hrs) | 04:00 PM→09:30 AM HKT |
| Lunch Break | 12:00 PM→13:00 PM HKT |
| Weekend
| 04:00 PM→09:30 AM HKT (Next monday) |
| Public holiday
| 00:00→23:59 HKT |
| Half-day Trading
| 12:00 HKT after market close |