Pegasystems (PEGA) stock was up 12% in early trading in the stock market Wednesday, a day after the provider of business software issued Q3 earnings that handily beat analysts earnings forecasts. Sales also were above views. The stock initially rose more than 17% to an all-time high of 47.99, but then was trading near 46.40. The Cambridge, Mass.-based company late Tuesday said it earned 33 cents a share on a non-GAAP basis, up 154% from 13 cents in