The U.S. Staffing Industry Stock Index, a basket of 17 staffing industry stocks tracked by Staffing Industry Analysts, fell by 5 percent in the second quarter but increased 29 percent year over year. The sequential decline follows a first-quarter gain of 19 percent.

Five staffing stocks recorded gains in the second quarter while 12 posted declines.

"We continue to have a positive outlook for the U.S. staffing industry in 2013,” said Timothy Landhuis, research analyst at Staffing Industry Analysts. “While fragility in the economy remains, we are encouraged by the resilience of monthly job gains, the recovery in the crucial housing sector, and continued strength in the energy sector. As demand in many sectors of the staffing industry has now recovered from recession declines, we forecast mid single-digit growth for the industry this year in terms of aggregate revenue.”

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