On option market the gain of butterfly spread investor is random.
期权市场蝶状价差的投资者获益具有随机性.
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Precious butterfly, spread your wings and fly.
我所珍爱的蝴蝶, 即将展翅飞翔.
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For what value of stock prices would be the butterfly spread leading to a maximum gain?
什么价值的股票价格将成为蝴蝶的蔓延导致了最大增益 呢 ?
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