Acquisition announcements often lead to a rise in the share price of the company being acquired, as it is usually bought at a premium. This is the case with PFSweb, whose shares have risen following the announcement of its acquisition by GXO Logistics.

The impact of acquisition announcements on the acquiring company's stock can be mixed. While it could lead to a short-term rise due to potential synergies and growth prospects, it could also lead to a drop due to the costs associated with the acquisition. In this case, it's uncertain how GXO Logistics' stock will react in the short term.