By Bret Kenwell GE stock is rallying for an eighth session. How long can it continue to gain? General Electric (GE) – Get General Electric Company Report shares are rallying on Tuesday, up about 5.7% and trading near highs. If GE stock closes in the green, it will mark the stock’s eighth straight daily gain. In that span, we’ve seen the stock rally more than 20% and reclaim several major moving averages, including the 10-day, 21-day and 50-day. Driving the shares today are the company’s better-than-expected earnings results. GE reported second-quarter non-GAAP earnings of 78 cents a share, nea…