A.I.M. Users Bulletin Board

[AIM1979]

Does anyone know how to calculate a beta for an ETF?

Well, if you're willing to do a bit of work, you might be able to calculate it yourself. Since you're treating ETF/Ns as a stock for AIM, you could take the closing price and bump it up against NYSE index (I think that's what ValueLine uses). The trick is, knowing the time period to they use to closely emulate it. This site may help Calculating Beta.

What I've done is calculate beta for a given time period and compare it to published. Now, I suppose I could go do some back calculating with larger and larger periods but, that would get out of hand. Instead, I look at what ranges I calculate in the comparison and live comfortably with mine.

Anyway, due to the nature of ETF/Ns, it's just a way to give you a feeling about volatility.

RT