Monday's Small-Cap Winners & Losers

Small-cap stocks slightly outpaced a hesitant rally by the broader market Monday. The Russell 2000 and the S&P SmallCap 600 both added about 0.8% to 727.48 and 384.33, respectively.

Shares of Houston American Energy (HUSA Quote), a Houston-based provider of natural gas, crude oil and condensate, jumped 11% to $5.42. The company swung to a first-quarter profit of $493,000, vs. a loss of $512,000 a year ago.

Meanwhile, fellow Houston resident Gastar Exploration (GST Quote) added 12% to $1.55. The natural gas and oil explorer was upgraded by Dahlman Rose to buy with a price target of $3.

Mizuho Financial (MFG Quote), a Tokyo provider of financial services, saw shares climb 12% to $10.51. The company announced 2007 net income of 5.16 billion yen, down from 12.08 billion yen a year ago. Mizuho also announced that it would postpone a merger with Shinko Securities until 2009. The merger has been postponed several times in part because of Mizuho's exposure to the U.S. subprime crisis.

On the losing side, shares of Radware (RDWR Quote), an Israeli developer of application delivery and network security solutions, fell 15% to $9.05. The company posted a non-GAAP loss of $6.3 million, or 32 cents a share, vs. a loss of $1.2 million, or 6 cents a share, a year ago. Analysts were looking for an EPS loss of 5 cents.

Also falling, Sycamore Networks (SCMR Quote), a Chelmsford, Mass.-based developer of bandwidth management solutions, lost 12% to $3.30. The company guided for fiscal third-quarter 2008 revenue of about $21 million. Analysts polled by Thomson Financial forecast revenue of $45.7 million.