I apologize
Rob,
I completely missed your post! I apologize for this. I in no way meant to ignore you.
Back to price by volume: support is where people have purchased the stock. When the price rises past the purchase point, and then retraces to that same point of purchase, people often add to their positions right there. Perhaps they had bought at $20, sold at $25, and now that the stock has retraced to $20, they buy it again. Now if the price by volume is thin, that shows that the support at that price level is thin, too. And if a stock is swamped with sellers, there are few buyers at this level. Thus the stock can fall through that price area rather quickly.
Originally posted by Rob
I completely missed your post! I apologize for this. I in no way meant to ignore you.

Back to price by volume: support is where people have purchased the stock. When the price rises past the purchase point, and then retraces to that same point of purchase, people often add to their positions right there. Perhaps they had bought at $20, sold at $25, and now that the stock has retraced to $20, they buy it again. Now if the price by volume is thin, that shows that the support at that price level is thin, too. And if a stock is swamped with sellers, there are few buyers at this level. Thus the stock can fall through that price area rather quickly.
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