"Bull markets are born on pessimism, grow on skepticism, mature on optimism, and die on euphoria. The time of maximum pessimism is the best time to buy, and the time of maximum optimism is the best time to sell." -- Sir John Templeton

Just as it makes sense to research the stocks attracting top investors, it's equally important to figure out why smart money is leaving other investments. Using Motley Fool CAPS, the Fool's 135,000-member-strong investing community, we can see which stocks are losing support from CAPS All-Star players.

A sudden decrease in interest from top-rated investors could signal that the stock is losing steam, which might make it an awful stock to avoid for now. At the very least, such drops should signal that further research is in order.

Here are six stocks receiving less support from CAPS All-Stars over the past month:

Company

Industry

% Change in All-Star Bulls From 7/27 to 8/26

CAPS Rating (out of 5)

CAPS Research

China Biotics Inc (NASDAQ:CHBT)

Biotechnology

(24%)

3 Stars CHBT

Apco Argentina, Inc. (NASDAQ:APAGF)

Oil, Gas and Consumable Fuels

(23%)

3 Stars APAGF

CyberSource Corp (NASDAQ:CYBS)

IT Services

(21%)

3 Stars CYBS

DepoMed, Inc. (NASDAQ:DEPO)

Pharmaceuticals

(20%)

4 Stars DEPO

CEVA, Inc. (NASDAQ:CEVA)

Semiconductors and Semiconductor Equipment

(20%)

4 Stars CEVA

Cypress Bioscience, Inc. (NASDAQ:CYPB)

Pharmaceuticals

(20%)

3 Stars CYPB

Source: Motley Fool CAPS, as of August 26, 2009

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No individual person selected the stocks in this article, so there is no author to disclose an interest in them. Since this article was automatically generated by identifying the stocks loved both by the CAPS community and by buyers in today’s market, it is possible that Motley Fool personnel (and even The Motley Fool itself, through our Million Dollar Portfolio, Motley Fool Pro, and Ready Made Millionaire services), have positions in these stocks. We thought you'd like to know that. You can learn more about The Motley Fool’s disclosure policy here.