Dell (NASDAQ: DELL) is up 9% on strong earnings.
Marvell Technology (NASDAQ: MRVL) is up 17% on good numbers.
Sigman Designs (NASDAQ: SIGM) is off 18% on weak earnings.
JA Solar (NASDAQ: JASO) is up almost 7% on no visible news.
Stocks may trade differently in the pre-market than they do in the regular session.
Douglas A. McIntyre is an editor at 24/7 Wall St.










