41.   Massachusetts stocks rose for the third day, led by Genzyme Corp. and Biogen Inc. amid a rally in biotechnology stocks.

42.   Most recently, biotechnology stocks became notoriously volatile as small investors tried to match their limited knowledge of complex scientific developments against the chance of making large profits.

43.   One of the strongest sectors Tuesday was biotechnology stocks.

44.   Other Maryland biotechnology stocks fell this week, too.

45.   Optimism about prospects for breakthrough medications helped to push up prices of biotechnology company stocks.

46.   Over different periods, investor euphoria has pushed biotechnology stocks, shares of semiconductor companies and, more recently, Internet stocks, to levels that were not sustainable.

47.   Part of the performance came from biotechnology stocks.

48.   Rekenthaler likes Putnam Health Sciences, a diversified fund with some exposure to biotechnology stocks.

49.   Since becoming serious about trading, he has bought biotechnology stocks like Maxigen and Protein Design Labs along with Internet stocks like Ariba.

50.   Since the start of the year, biotechnology stocks have plunged.