A batch of stocks broke out of bases on Thursday, often because of positive earnings reports. Iconix Brand Group (ICON) cleared the 42.57 buy point of a cup-without-handle base. But the apparel company, which beat first-quarter expectations, closed down 0.02 to 42.48. Meanwhile, at least five stocks broke out of flat bases. Manitowoc (MTW) broke out ahead of its earnings report after the close.