BitradeX Stock Contracts Glossary
| No. | Chinese Name | English Name | Brief Explanation |
| 1 | 合约类型 | Futures Type | BitradeX is mainly divided into: USDT-Margined Perpetual |
| 2 | 永续合约 | Perpetual Futures | No expiration date, can be held indefinitely, pegged to spot prices via the funding rate mechanism |
| 3 | U本位合约 | USDT-Margined | Settled in USDT for margin and PnL calculation (e.g., TSLAUSDT) |
| 4 | 多头/做多 | Long / Open Long | Bullish, buying contracts expecting the price to rise |
| 5 | 空头/做空 | Short / Open Short | Bearish, selling contracts expecting the price to fall |
| 6 | 杠杆倍数 | Leverage | Commonly 5x~25x, amplifies profits and losses (higher leverage means higher risk) |
| 7 | 保证金 | Margin | Funds required to open/maintain a position |
| 8 | 初始保证金率 | Initial Margin Rate | Margin ratio required to open a position (= 1 / Leverage) |
| 9 | 维持保证金率 | Maintenance Margin Rate | Minimum margin ratio required to prevent liquidation (liquidation is triggered below this level) |
| 10 | 强平/爆仓 | Liquidation | Triggered when margin is insufficient to maintain the position; the system automatically closes the position at market price |
| 11 | 标记价格 | Mark Price | The fair price used to calculate unrealized PnL and trigger liquidation (prevents market manipulation) |
| 12 | 资金费率 | Funding Rate | Unique to perpetual contracts; periodic payments between long and short positions (usually every 8 hours for Stock Contracts) |
| 13 | 未实现盈亏 | Unrealized PnL | Floating profit or loss of current positions calculated at market price (not credited until closed) |
| 14 | 已实现盈亏 | Realized PnL | Actual settled profit or loss from closed positions |
| 15 | 开仓 | Open Position | Establishing a new position (Open Long / Open Short) |
| 16 | 平仓 | Close Position | Settling contract holdings (buying/selling in the opposite direction) |
| 17 | 市价单 | Market Order | Executed immediately at the best available current market price |
| 18 | 限价单 | Limit Order | Placed at a specified price, executed only when the market reaches that price |
| 19 | 止盈 | Take Profit (TP) | Automatically closes a position to lock in profits when the target price is reached |
| 20 | 止损 | Stop Loss (SL) | Automatically closes a position to control risk when the stop price is reached |
| 21 | 仓位模式 | Position Mode | One-Way Mode vs Hedge Mode (BitradeX supports Hedge Mode to hold long and short positions simultaneously) |
| 22 | 保证金模式 | Margin Mode | Isolated Margin vs Cross Margin |
| 23 | 逐仓模式 | Isolated Margin | Margin is allocated independently to each position, isolating risk |
| 24 | 全仓模式 | Cross Margin | All funds in the account are shared as margin, offering stronger risk resistance but risking total loss |
| 25 | 风险限额 | Risk Limit | Different position sizes correspond to different maximum leverage limits (larger positions allow lower leverage) |
| 26 | 手续费 | Trading Fee | Charged on opening and closing positions (varies under Maker/Taker models) |
| 27 | 持仓量 | Position Size | Number of contracts or total value currently held |
| 28 | 平均开仓价 | Average Entry Price | Average cost price after opening positions multiple times |
| 29 | 爆仓价/强平价 | Liquidation Price | The price point that triggers liquidation (extremely important!) |
Perpetual Futures Core Mechanisms & Risk Management Elements
Core Mechanisms
- Leverage & Margin: Position size is determined by both the margin amount and the chosen leverage, forming the basic risk control parameters of trading.
- Mark Price & Funding Rate: Mark Price is used as the benchmark for liquidation calculations to reduce the impact of market volatility; the Funding Rate is an essential regulatory mechanism to keep perpetual contract prices close to the spot index.
Position Modes
- Isolated Margin: Margin and PnL for each position are calculated independently, achieving risk isolation.
- Cross Margin: All available balance is shared as margin for positions, improving capital efficiency but sharing the risk.
Trading & Risk Control
- Long/Short: Provides two-way trading options, allowing users to establish positions based on different market views.
- Take Profit/Stop Loss (TP/SL): Supports pre-setting automatic closing orders, serving as a fundamental tool for executing trading discipline and risk management.
Key Risk Indicators
- Liquidation Price: Must be precisely calculated in advance and continuously monitored. When the Mark Price touches this price, the position will be forcibly liquidated, making it the critical lifeline for position survival.
Traders are strongly advised to fully understand the above mechanisms before opening positions, configure leverage reasonably, set risk control orders strictly, and monitor liquidation price changes in real-time to prudently manage trading risks.