CNinsure Inc. (Nasdaq:CISG), Medicinova Inc. (Nasdaq:MNOV) and Sharps Compliance Corp. (Nasdaq:SMED) are among the new 52-week highs in Monday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Amcon Distributing Co. (Nasdaq:DIT), Destination Maternity Corp. (Nasdaq:DEST), Young Innovations Inc. (Nasdaq:YDNT), Medifast Inc. (Nasdaq:MED), Universal Forest Products Inc. (Nasdaq:UFPI) and Health Fitness Corp. (Nasdaq:FIT).

Consumer products company, AMCON Distributing Co. (AMEX: DIT), reported that it swung to a profit for its fiscal year 2007.

For the fiscal year ended Sept. 30, the Omaha, Neb.-based company posted net income of $4 million, or earnings per share of $5.16, compared with a loss of $1.3 million, or $1.62 per share. No analyst estimates were available. 

Sales for the year were $853.6 million, a 1.6% decrease over sales of $839.5 million booked in 2006.

The company’s wholesale distribution segment reported revenues of $815.7 million and operating income before depreciation and amortization of $14.1 million. Its retail health food segment reported revenues of $37.9 million and operating income before depreciation and amortization of $3.7 million.

Shares of AMCON (DIT) jumped 24.87%, or $6.65, to $33.39 at 1:53 p.m. ET. Shares of AMCON have been trading in the range of $13.75 to $36.88 for the past 52 weeks.

Restoration Hardware, Inc. (Nasdaq: RSTO), AeroCentury Corp. (AMEX: ACY) and Amcon Distributing Co. (AMEX: DIT) are among the biggest percentage gainers in Thursday's trading among companies with market capitalizations under $750 million.

Here are today's biggest percentage gainers:

Wholesale consumer products distributor AMCON Distributing Co. (AMEX: DIT) posted third-quarter net income of $1 million, or $1.29 earnings per share, compared with $0.24 million net income, or $0.41 per share, a year earlier. For the three months ended June 30, the Omaha, Neb.-based company recorded revenue of $220 million, down from revenue of $222 million in the same period of 2006.

“Our two core businesses continue to perform in line with our expectations,” CEO Christopher Atayan said in a release. “However, management continues to devote considerable time and resources toward residual litigation in connection with our discontinued operations.”

Avici Systems Inc. (Nasdaq: AVCI), AMCON Distributing Co. (AMEX: DIT) and Core Molding Technologies, Inc. (AMEX: CMT) were among the biggest percentage gainers in Thursday's trading among companies with market capitalizations under $500 million.

Here are today's biggest percentage gainers:

Staffing and management company Hudson Highland Group, Inc. (Nasdaq: HHGP) cut its second-quarter revenue guidance to between $348 million and $350 million, from between $355 million and $370 million. Wall Street analysts are expecting revenue of $363.2 million for the three-month period.

Touch-technology company Immersion Corp. (Nasdaq: IMMR) was downgraded by Thomas Weisel Partners to “underweight” from “market weight.”

These are the biggest percentage losers in Monday's trading among companies with market capitalizations under $500 million: