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| 触碰失效期权 (又译"障消期权"，指基础资产的市价触及约定水准时即失效) | |||
| 下跌失效期权; 下跌出局期权一种障碍期权，它在股票价格低于某个障碍价格时就自动到期无效; 失效期权; 出局期权与 down-and-out option 相同 | |||
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knock-out option : 5 phrases in 1 subject |
| Finances | 5 |
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