This month’s Short Term Energy Outlook includes a chart showing the skew in WTI options… using a Black-Scholes model! Once prices traded negative, some puts exploded in value reflecting the break down in model assumptions (that prices can’t go negative)… A zero struck put that trades for a dollar has no meaning in a Black-Scholes world… Some B-S models come up with nonsense vol numbers for out of the money puts… So, of course, the skew exploded!
by Jim Colburn Leave a Comment
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