Peak International

(PEAK)

surged a day after the packaging-products company swung to a first-quarter profit. The company earned $900,000, or 8 cents a share, compared with a loss of $2.6 million, or 21 cents a share, last year. Revenue increased 21% to $18.6 million. Shares climbed 51 cents, or 18.6%, to $3.26.

EFJ

( EFJI) took off after the maker of wireless communication and information-security products posted a hefty rise in sales. The company earned $3.9 million, or 15 cents a share, up from $295,000, or 2 cents a share, a year ago. Revenue increased 45% to $28.8 million. Wall Street was looking for earnings of 8 cents a share on $26 million in revenue. Looking ahead, the company raised its fiscal 2006 revenue guidance. Shares gained $1.16, or 17.3%, to $7.85.

Central Garden & Pet

(CENT) - Get Report

was up after the company beat third-quarter earnings expectations. The company earned $30.7 million, or $1.28 a share, up from $22.2 million, or $1.03 a share, a year ago. Revenue totaled $506.7 million, up from $413.2 million. Excluding a pretax gain of $9 million, the company earned $1.05 a share, a penny ahead of estimates. The company also reiterated its fiscal 2006 guidance. The stock gained $5.94, or 15.6%, to $44.11.

InterOil

(IOC)

slipped after the oil company said Chief Financial Officer Tom S. Donovan left the company effective July 31. The company said Donovan, who served as CFO since 2002, elected to relocate back to the U.S. upon the expiration of his employment contract. The company said the search for a replacement is under way. CEO Phil Mulacek has assumed the duties of CFO while the company searches for a permanent replacement. Shares fell $1.05, or 5.6%, to $17.75.

Premium Standard Farms

( PORK) plummeted after the pork-products company saw a drop in first-quarter earnings. The company earned $7.6 million, or 24 cents a share, compared with $15.4 million, or 49 cents a share, a year ago. Sales totaled $206.2 million, down from $245.3 million a year ago. Shares tumbled $2.56, or 15.3%, to $14.19.