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8月
如何通过B-S模型求解股票波动率?这种求解方法有哪些实际应用?
该模型基于以下几个假设:股票价格遵循几何布朗运动,市场无摩擦,无套利机会,且波动率为常数。模型的核心公式如下: \[ C = S_0 \cdot N(d_1) - X \cdot e^{-rT} \cdot N(d_2) \] 其中,\( C \) 是期权价格,\( S_0 \) 是当前股票价格,\( X \) 是行权价,\( r \) 是无风险利率 ...
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