# Stock Perpetuals

Aster perps supports **stock perps** — enabling perpetual futures trading for U.S. stocks, fully settled in USDT. Trade with up to 10x leverage, long or short, and choose your leverage level when placing an order.

Index prices are sourced from multiple providers including the Pyth oracle, ensuring a comprehensive and reliable data set for calculations and settlement.

The first stock listing is AAPL/USDT, offering a seamless, on-chain alternative for global traders to access equity markets with high flexibility and control.

### **Trading Sessions**

| **Session**              | **New York City Local Time** | **Limit Order Price Cap**                                    | **Market Order Price Cap**                                               |
| ------------------------ | ---------------------------- | ------------------------------------------------------------ | ------------------------------------------------------------------------ |
| Pre-market (off-hours)   | 04:00–09:30                  | Orders > 2% more aggressive than Mark Price will be rejected | Can fill up to 2% more aggressive than Mark Price; remainder is canceled |
| Market open              | 09:30–16:00                  | Same as crypto perpetual trading pairs                       | Same as crypto perpetual trading pairs                                   |
| Post-market (off-hours)  | 16:00–20:00                  | Orders > 2% more aggressive than Mark Price will be rejected | Can fill up to 2% more aggressive than Mark Price; remainder is canceled |
| Market close (off-hours) | 20:00–04:00                  | Orders > 2% more aggressive than Mark Price will be rejected | Can fill up to 2% more aggressive than Mark Price; remainder is canceled |

[View full Trading Limits & Conditions](https://www.asterdex.com/en/futures/trading-rules/leverage-and-margin)

#### **Note on Trading Parameter Adjustments**

To mitigate market risks and improve the user experience, Aster may adjust trading parameters — such as funding rates, minimum price increments, maximum leverage, risk limits, and maintenance margin requirements — in response to real-time market conditions.