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Beta is a worthless concept,
Feb 17 02:03 am
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All Comments by jimmy46 »Can You Calculate Berkshire's Beta? [View article]
it's computed by multiplying volatility times correlation with the market.
Who knows how much each component contributes?
Volatility itself is difficult to determine, the black scholes formula for valuing options includes IMPLIED VOLATILITY.
In other words, it's the x factor that's left when every thing else is multiplied out.
black & scholes imply that volatility isn't easy to determine.