if 90% of traders are losers, then why would we care about IV?

[murray t turtle]

It's normally called the 80-20% rule. But in our case, it is indeed closer to 90-10.

%%
Good points;
except when one is not cut out for working for some else .THEN we will find a way to be in the 20%
[HMM, i wonder why IBD printed the put-call ratio @ only the bottom of one of his many charts??
LOL it's so easy to miss that bottom number, only on one chart]

 

[traider]

Is this implied vol or intrinsic value? I care deeply about both

 

[ajacobson]

If there are so many failures how does the volume grow? For what it's worth the SSAs collect the data and publish it to the member firm community every few years. The data is nothing like what's being quoted and numbers like 90% would result in a marketplace evolving. Reach out to your State regulators and ask them for the study - not free in most states. The best part of the study, as I recall was the holding period of trades.