PST Nasdaq stocks go every which way in late trading.
Biotech stocks stumble.
On a day in which the Nasdaq jumped on rallies in semiconductors and software stocks and the Dow Jones industrial average saw big losses early but bounced back for only a 1 percent drop, the after-hours market is seeing similar ups and downs. The company makes machines and devices used in life-sciences research. A slew of biotech firms are falling after hours. First Call consensus was looking for a loss of a penny. Analysts were expecting 3 cents a share.