Buoyed by positive gains for shares of Boeing and Nike, the Dow Jones Industrial Average is trading up Wednesday afternoon. The Dow (DJIA) was most recently trading 200 points, or 0.8%, higher, as shares of Boeing (BA) and Nike (NKE) have contributed about 25% of the index’s intraday rally. Boeing’s shares have climbed $7.98, or 2.4%, while those of Nike have climbed $1.80, or 2.2%, combining for a roughly 66-point boost for the Dow.