This is because implied volatility is generally higher than realised.
这是因为隐含波动率通常高于实际波动率。
Only rarely, as on February 27th, does the curve “invert” so that short-term implied volatility is higher than long-term.
仅在很少情况下，如2月27日，市场曲线发生倒转因此短期隐含波动高于长期隐含波动。
In quiet markets, the number of people who want to sell options increases, driving their prices, and thus the level of implied volatility, down.
在市场平静的时候，愿意出售期权的人增加，使它们的价格，也就是隐含波动性的等级下降。
They have been willing to pay a higher price (as measured by implied volatility) for extreme out-of-the-money options than for contracts that insure against smaller market declines.
对处于价外状态的期权而言，投资者已乐意为此支付比那些承保小幅下跌的合约更高的价格(以隐含波动为衡量标准)。
The research is intended to do like this: firstly, to change the discrete data of implied volatility into function.
研究步骤为：首先将离散的隐含波动率数据转换为函数形式，然后进行函数型数据分析。
Identifying the implied volatility of underlying assets is very important for both theoretical and practical applications.
确定原生资产的隐含波动率无论是在理论还是实际应用上都有重要意义。
Remarkably, cortisol increased in direct correlation to implied volatility, a measure of expected future variance in asset prices.
出乎意外地的是，皮质醇上涨与用来测量预期将来资产价格变动的隐含波动率呈正相关。
More precisely, for one day 'quote, the implied volatility is a function of two parameters: the strike price and the time to maturity, exhibiting a surfaced shape.
确切的说，对于某一天的期权报价，隐含波动率是执行价格和存续期的二元函数，呈现曲面的形态。
More precisely, for one day 'quote, the implied volatility is a function of two parameters: the strike price and the time to maturity, exhibiting a surfaced shape.
确切的说，对于某一天的期权报价，隐含波动率是执行价格和存续期的二元函数，呈现曲面的形态。
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