QUOTE (youkim @ Oct 26 2006, 10:01 AM)

Thanks. But if more sellers cannot bring down the fewer number of bulls, how does the market ever go down? I thought the volume was an important factor in the movement of the market.
Ah-Ha! I think I see the source of your confusion. A lot of the sentiment we're looking at is more unsophisticated money or at least "smaller money". Big institutions get money every day and they generally have to put it to work within some large parameters. So, with the market making new highs they and other "structural" investors will be under some pressure to apply marginally greater amounts of cash to the market. Meanwhile, we have lots of speculators who have already sold or are short and who will soon be forced to cover, adding more demand.
Now, at some point, all the factors that got that money into the market will be understood and everyone will have committed not just what they should have committed, but perhaps a bit more in order to try to beat their peers or sneak out a little extra performance. Now, as mentioned above, there's structural investing constantly going on, and even with almost everyone fully committed, there's new money coming and unless there's a reason to shift out of stocks, the market can just drift higher on the marginal demand. That's why tops are built over a much longer duration than bottoms, too.
Anyway, what typically happens, is this. After everyone is pretty confident and now about as exposed or more exposed to equities than they should be, there will come some news or some development that causes some concern. Now, investors aren't fast to sell. They'll hold on for a while. Some will hold on forever, in fact. But some will start selling. Paring back. The market will back off. Then there'll be some dip buyers who push it back up, but those lingering worries will remain and thus there will be a bit more selling. There might be some other development that investors might think offsets the first worrisome development, and they might buy the market back up again. This will repeat in various and sundry ways as a top is built. Over this time, sentiment will start showing more Bearishness even as stock prices barely decline. At some point, the investors start wanting to move out of the market more aggressively, but the problem is that all the demand that was there before isn't. The Structural Buyers are allocating a bit less money to stocks now, and the more nimble are liquidating but the dip buyers have already bought and the shorts have already covered. Now, a real decline can get going because it has fuel. The sentiment will invariably be misunderstood at that point to be Bullish, when in fact it won't be Bullish until the prior built up supply is spent and new fuel for an advance is built up.
So, too much Bearishness in a rising market that hasn't yet seen excessive Bullishness is Bullish. After everyone has gotten Bullish, however, a rise in Bearishness is actually often Bearish. We're in the former situation currently.
I hope that helps.
Mark