11.   Drug shares retreated a day after rallying amid speculation that SmithKline Beecham Plc and American Home Products Corp. would merge.

12.   Economically-sensitive shares retreated.

13.   In less dramatic run-ups, convertibles tend to share richly when the underlying common advances, while being spared some of the pain when shares retreat.

14.   Interest-sensitive shares such as banks retreated.

15.   Oil shares retreated.

16.   Oil shares rallied on expectations that higher gasoline prices will fuel improved earnings, while semiconductor shares retreated.

17.   Other technology shares retreated as well.

18.   Other computer shares retreated.

19.   Regional bank shares retreated as higher bond yields were seen cutting into profits from loans.

20.   Shares of computer companies gained on expectations their earnings will rise the fastest this year, while oil shares retreated.