NEW YORK (AP) -- Stocks were mostly lower in midday trading Tuesday, taking a pause after five straight days of gains. DuPont's shares soared on news that its embattled CEO will retire, while biotechnology companies sank again. Energy stocks climbed as the price of crude oil rose sharply.
KEEPING SCORE: The Dow Jones industrial average rose four points, less than 0.1 percent, to 16,780 as of 12:05 p.m. Eastern. The Standard & Poor's 500 index was down 10 points, or 0.5 percent, to 1,977 and the Nasdaq composite fell 55 points, or 1.2 percent, to 4,725.
DUPONT: The chemical giant DuPont rose $5.42, or 11 percent, to $56.72, the biggest gainer in the Dow average and the S&P 500. DuPont's CEO Ellen Kullman said she would retire next week. DuPont's profits have lagged in recent years and the company has been a target of activist investors like Nelsen Peltz.
SPINOFF: Mining and drilling company Freeport-McMoRan rose 52Read More »from US stocks are mostly lower in midday trading; DuPont jumps