AMZN has a beta of .37 does this make sense

[WhiteOut56]

I thought beta was... defined as such

If a stock has a beta of 2
If the mkt goes up 1%, the stock will go up 2%


according to yahoo... amzn has a beta of .37.


Anyone have any idea as to why this is such?

 

[marcoPolo21]

it does sound Low,
without looking up anything

on the other hand,
the market is up 3% today, and AMZN is only up 2% tops

marc

 

[JamesL]

Google finance has beta of 1.01

http://www.google.com/finance?q=NASDAQ:AMZN&authuser=0

 

[newwurldmn]

bloombrg has a beta of 1.307 and adj beta of 1.2

2 year weekly data.

that makes the most sense.

 

[cgstewart92]

CNBC has it having a beta of 1.02

 

[LEAPup]

You fellas still using one of them old beta max machines?

 

[Rodney King]

Check what lookback Yahoo is using. If you want to bother, you could back it out by iterating thru, X days, X+1 days... till you find the beta they show.

On 10/26, AMZN fell ~$30 while SPY was up ~$1.25. A monster datapoint like that will heavily influence a regression, especially on a short lookback.