Welcome to CapBiz A.M., your morning primer on business news with a focus on Washington.

Hire education: A growing number of companies are using online performance tests to evaluate job candidates before bringing them in for an interview, using the assessments as a screening tool for openings at every rung on the career ladder. And that has translated into a bump in business for one local company. (CAPBIZ)

K2M IPOs: K2M Group Holdings, a medical device company in Leesburg, debuted on the Nasdaq exchange on Thursday, reaping $120 million in net proceeds. Still, that’s a bit lower than the company was banking on. (CAPBIZ)

Mall sale: The owners of the Shops at Georgetown Park have been busy overhauling the mall to accommodate a lineup of new, larger stores. Now, they’re putting the shopping center back on the market. (CAPBIZ)

Upbeat execs: Washington region chief financial officers have a brighter outlook on the local economy than their counterparts in the rest of the country, according to a new report by TD Bank. (WBJ)

Still waiting: Mortgage behemoths Fannie Mae and Freddie Mac are bouncing back, having cranked out more than $200 billion in profits since the financial collapse. So why haven’t some of their investors seen their returns? (WP)

Shipping wars: Amazon is expanding its Sunday delivery service to 15 more cities, extending the pilot program beyond New York and Los Angeles as e-commerce competition from competitors like Google heats up. (MW)

Claims fall: The number of Americans seeking unemployment benefits dropped 26,000 last week to 319,000, the latest sign that the job market is improving – albeit slowly. (AP)

On Wall Street

Stocks slipped lower on Thursday, weighed down by losses in the energy and utility sectors. The Nasdaq’s three-day decline is its longest losing streak in more than a month. Hotel giant Hilton Worldwide releases its first quarter earnings later today. (Get the latest updates here)

What’s on tap today

Wholesale trade report (10:00 a.m.)

Montgomery Country Small Business Awards (10:30 a.m.)

Southern Maryland Entrepreneurs Club CEO meetup (1:00 p.m.)

Challenge Festival kickoff at 1776 (7:00 p.m.)

Help: How to determine whether your company should be in the delivery business (OSB)

Follow: CEB SHL, CEB’s testing and research division

Extra: Hope to climb to the top of your company? Better have a sense of humor. (WP)