Sonic - The fast-food chain posted earnings of 11 cents a share, edging past expectations by a penny a share, on revenue of $126 million, in line with estimates. In addition, the company said it expects full-year 2013 same-store sales growth in the low single-digit range and sees more new franchise openings versus last year, sending shares higher in extended-hours trading.
Endo Health Solutions - The pharmaceutical company reaffirmed its full-year 2012 adjusted earnings to be at or below the low end of the $5 and $5.10 a share range. The company also said it expects to see full-year 2013 earnings of between $4.40 a share and $4.70 a share, ex-items, and revenue of between $2.80 billion and $2.95 billion. Shares declined in extended-hours trading.
Airgas - The distributor of specialty gases acquired industrial gas and welding supply distributors Metroplex Service Welding Supply and Excel Welding & Industrial Supplies. Financial terms of the agreement were not disclosed.
Morgan Stanley upgraded PerkinElmer to "overweight" from "equal weight," sending shares of the environmental health company higher in extended-hours trading. Meanwhile, the brokerage firm downgraded Waters to "equal-weight" from "overweight," sending shares of the laboratory software company lower in extended-hours trading.