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Echo Global Logistics revenues surged 34.6% and profits beat analysts’ expectations by a large margin in the three months ended Dec. 31.

Years of investments in warehouses and robots and data centers and gadgets — that have often tested investor patience — paid off big for Amazon over the holidays.

Diversified trailer manufacturer Wabash National Corp. reported gains in fourth-quarter revenue and net income, but had a “reset” for the full-year as both indicators dipped.

Werner Enterprises reported fourth-quarter net income of $30.6 million Jan. 29, or earnings per diluted share of 42 cents, beating expectations of analysts surveyed by Bloomberg of $27.8 million and 39 cents per share. Earnings per share in the year-ago quarter was 30 cents.

Norfolk Southern Corp. released on Jan. 24 results for the fourth quarter and full-year 2017, beating analyst expectations and growing its intermodal revenues by 14% in the quarter.

Kansas City Southern announced a significant uptick in profits in the fourth quarter, but similar to virtually all U.S. companies, the final total was bolstered by the savings anticipated from the Tax Cuts and Jobs Act.

J.B. Hunt Transport Services Inc. announced that profits more than tripled in the fourth quarter, although, as will be the case across multiple industries, the results were bolstered by a significant tax credit related to the Tax Cuts and Jobs Act signed last month.

Heartland Express Inc. announced weaker-than-expected earnings in the third quarter on Oct. 27 as higher expenses related to Interstate Distributor Co. dragged results down despite higher revenue.