Contract Trading
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Reduce-only orders are a small futures setting with large risk value
A reduce-only flag helps prevent an exit order from becoming a new opposite position after the original futures trade has already closed.
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OCO 订单能帮助定义退出，但不能消除成交风险
Coinbase、OKX、Crypto.com 等平台都提供或解释了括号单、TP/SL 或 OCO 逻辑，但交易者仍需理解触发、成交和滑点。
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OCO orders help define exits, but they do not remove execution risk
Coinbase, OKX, Crypto.com, and other platforms document bracket or OCO-style orders, but traders still need to understand triggers, fills, and volatility gaps.
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预测市场申请保证金交易，杠杆风险进入交易清单
Polymarket 相关申请与北卡罗来纳新法显示，预测市场正在更接近受监管衍生品框架，交易者需要重新评估杠杆、税收与流动性风险。
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Prediction market margin plans put leverage risk on the trader checklist
Polymarket-related filings and a North Carolina law show prediction markets moving closer to futures-style rules, taxation, and leverage debates.
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决定合约强平的通常是标记价格，不是最新成交价
永续合约交易者必须分清止损、止盈、未实现盈亏和强平引擎分别参考最新价、标记价还是指数价。
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Mark price, not the last trade, is what usually decides futures liquidation
Crypto perpetual traders should know whether stops, take-profit orders, unrealized PnL, and liquidation engines reference last price, mark price, or index price.
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开期货仓位前，先在下单框核对订单成本和风险限额
Bybit 期货文档显示，下单前应同时检查订单成本、杠杆、手续费和风险限额，而不是只判断方向。
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Before opening a futures trade, check order cost and risk limits in the ticket
Bybit’s futures documentation shows why order cost, leverage, fees and risk limits should be checked before the order is sent.
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资金费率不只是情绪指标，也是永续仓位的实时成本
Kraken 和 Bybit 的教育资料都提醒交易者，资金费率既是市场情绪信号，也是会直接影响盈亏的现金流项目。