The read across from its rival's results is positive for UPS. A solid earnings report from FedEx (FDX 1.48%) sent its shares soaring, and that's probably why UPS (UPS 0.75%) stock rose in the first trading day after the earnings release. Such events are common in investing, and a deeper look at the earnings reports suggests some positive takeaways for UPS investors. Here are five of them for UPS investors to consider. FedEx domestic volumes are improving A key part of UPS' investment case is the idea that i ...