What is Sarah Cov necklace worth

I'd be inclined to say no, Im looking for the answer myself. But if you have Cov(A-B,A+B)=Cov(A,A)-Cov(B,B)-Cov(B,A)+Cov(A,B), then the last two will cancel but if Var(B)>Var(A) then we would get a negative covariance. [Cov(A,A)=Var(A)] So it looks possible because as far as I know there is no squaring of the coefficeients when you bring them out of the covariance so a negative answer is entirely possible.

There are 2 syllables. Cov-ered.

As of July 2014, the market cap for Covidien plc. (COV) is $40,173,045,363.00.

It depends I play both, right now I favor CoV more