为什么期权跌的比涨的快那么多

我就发现我买几次期权都是这样的情况，正股涨了一个点，期权涨了没多少，正股跌了一个点，期权跌幅是上涨的几倍。这是我的错觉吗？

$英伟达(NVDA)$ $阿里巴巴(BABA)$ $京东(JD)$ $微博(WB)$ $特斯拉(TSLA)$ $AMD(AMD)$ $陌陌(MOMO)$

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dongxie811
2017-07-15
dongxie811
这就是为什么总是庄家赢。不要听什么时间价值，波动率什么鬼，造几个概念出来骗你的。最终用概率赢你。
Tony特别帅
2017-07-14
Tony特别帅
你是不是买价外的
0o零o0
2017-07-14
0o零o0
价外期权只有外部价值，delta值、gamma和IV等计算后还要减去theta的时间流逝，越是接近价内流逝值越大，即使每天开盘价等于收盘价你的权利金都会一天低于一天…
simons的期权实验室
2017-07-14
simons的期权实验室
时间损耗不是线性的
核桃桃
2017-07-14
核桃桃
😂 多学习
黑天鹅90度
2017-07-14
黑天鹅90度
用赢透客户端看，隐含波动率下降

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