11.   Because stocks tend to move in groups, he will first compare a losing equity with other stocks in the industry.

12.   Because the companies are so dependent on order flow and capital spending, their stocks tend to be volatile and therefore vulnerable during market weakness.

13.   Because they are widely held among investors, the stocks tend to mirror the direction of the overall market.

14.   Both stocks tend to fluctuate more widely from day to day than the companies that are being removed.

15.   But then, small stocks tend to do worse than large stocks in market downfalls, Cooley said.

16.   But there are fundamental operating and historic reasons the two stocks tend not to trade in tandem.

17.   But value stocks tend to rise when interest rates go up.

18.   Conglomerate stocks tend to get penalized on Wall Street because, among other reasons, a poor-performing industry in the mix overshadows more successful divisions.

19.   Economically sensitive stocks tended to be sold heavily, including three component stocks of the Dow.

20.   Engraving and metal-to-metal fit are first-class, though stocks tend toward the ordinary, with oil finishes and dull wood.