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Gold/Mining/Energy : Strictly: Drilling and oil-field services
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To: The Perfect Hedge who wrote (4357)12/3/1997 2:22:00 PM
From: SJS  Read Replies (1) of 95453
 
Becuase they think it will go up, and want not to BUY something.

PS: The BB site was helpful, so the answer to my questions are:

1) Use 20 days, and use 2 standard deviations:

Here what he said, which is exactly what I wanted to see:

Bollinger Bands -- Bollinger bands are bands drawn around the price structure that answer the question as to whether prices are relatively high or low. They are governed by volatility. In their standard form they are the 20-day simple moving average plus and minus two 20-day standard deviations. Bollinger Bands were created by John Bollinger, the founder of Acme Analytics and the creator of this site.
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