It's literally just shares outstanding x price. Just shows how much is being held by investors (including themselves, if they have positions).
mc = shares outstanding x whatever the stock price happens to be.
http://alotofanswers.wordpress.com/
SRPT's lead drug, Eteplirsen, not currently approved yet, represents a potential $800 million opportunity.....
(Though the company has some early stage developments, Eteplirsen is their only advanced stage development and they have no other products)
So I look up its stock quote on google finance and sure enough, the market cap listed is $800 million.
Now I look up another stock, OPK.
The market cap listed is $3.72 billion.
That doesn't sound right to me because......I know their lead drug, Rayaldy, represents a $12 billion opportunity.
Plus they have a lot of other late-stage products that represent billions as well.
That $3.72 billion number sounds low.....
Maybe that number is referring to products that are already approved?
But Eteplirsen's not approved, so why was Eteplirsen included in Ssrepta's market cap?
