On: Tesla races past $100B in market valuation

[rjkennedy98]

> why not take out a short position?

To quote John Maynard Keynes, “The market can stay irrational longer than you can stay solvent"

[mlyle → rjkennedy98]

Yup. And the cost of time on Tesla options right now is insane. $590 puts for April cost ~$66.

[n00b590 → mlyle]

That's not the cost of time you're seeing; it's the implied volatility.

[mlyle → n00b590]

Sorry for the delayed response--- didn't see your comment.

An option's value is its intrinsic value, plus its time value. The time value of an option is mostly sigma, yes.

https://en.wikipedia.org/wiki/Option_time_value#Time_value