Shares of Administaff were among the NYSE's winners Monday, rising 23% after the company posted second-quarter earnings that were well above Wall Street expectations.

The provider of human resources services posted earnings of $7.3 million, or 28 cents a share, on sales of $279.9 million. Analysts polled by Thomson First Call were expecting earnings of 19 cents a share on sales of $273.7 million. A year ago the company earned $2.8 million, or 10 cents a share, on sales of $232.9 million. Results were fueled by a 12.5% increase in the average number of worksite employees paid per month and by a 6.9% increase in sales per worksite employee per month. Additionally, client retention averaged 98.6% per month, Administaff's highest quarterly retention rate since 1998.

Looking ahead, Administaff now expects gross profit per worksite employee per month to be $211 to $213 during 2005, up from previous guidance of $204 to $208. Shares were trading up $5.81 to $31.41.

Playtex Products ( PYX - Get Report) fell slightly after the company reported second-quarter earnings that were better than expected on sales that fell below forecasts. The company, which makes feminine, infant and skin care products, reported earnings of $6.2 million, or 10 cents a share, on sales of $177 million. Excluding items, the company would have posted earnings of $8.9 million, or 14 cents a share. Analysts were expecting earnings of 12 cents a share on sales of $182.5 million. A year ago the company posted pro forma earnings of $6.1 million, or 10 cents a share, on sales of $185.5 million.

Looking ahead, Playtex reaffirmed its operating income guidance, which excludes items, of $105 million to $115 million. Sales growth, excluding the company's divested Woolite brand, is expected to be in the low-single digits compared to a year ago when it reported sales of $666.9 million. On a reported basis, sales growth is expected to be flat to down slightly compared to a year ago. Analysts are expecting earnings of 45 cents a share on sales of $656.2 million. Shares were trading down 9 cents to $10.67.

Shares of Martin Marietta Materials ( MLM - Get Report) fell 2% after the company posted mixed second-quarter results and warned that third-quarter earnings would fall short of expectations. The construction aggregates and magnesia-based chemical products earned $61.5 million, or $1.30 a share, on sales of $546.4 million. Analysts were expecting earnings of $1.29 a share on sales of $580.5 million. A year ago the company earned $44.7 million, or 92 cents a share, on sales of $462.3 million. Looking ahead, Martin Marietta forecast third-quarter earnings of $1.20 to $1.35 a share, below the $1.38 a share that analysts had been expecting. For all of 2005, the company now expects earnings of $3.35 to $3.55 a share, up from previous guidance of $2.90 to $3.25 a share. Analysts, however, were expecting $3.70 a share. Shares were trading down $1.13 to $71.56.

Entergy ( ETR - Get Report) fell 1% after the company posted second-quarter earnings that were better than expected and said that it continues to expect full-year earnings that will fall to the low end of its guidance. The company reported operational earnings of $286.2 million, or $1.33 a share, on sales of $2.71 billion. Analysts were expecting earnings of $1.30 a share on sales of $2.46 billion. A year ago the company earned $265.2 million, or $1.14 a share, on sales of $2.49 billion. Looking ahead, Entergy continues to expect 2005 earnings that will be at the lower end of the $4.60 to $4.85-a-share range. Analysts are expecting earnings of $4.65 a share. Shares were trading down $1.08 to $76.86.

Shares of Bluegreen ( BXG - Get Report) rose 2% after the company reported second-quarter earnings that topped expectations. The residential and resort operator posted earnings of $14.3 million, or 46 cents a share, on sales of $185.3 million. Analysts were expecting earnings of 33 cents a share on sales of $169.3 million. A year ago the company earned $9.1 million, or 31 cents a share, on sales of $152.2 million. Shares were trading up 41 cents to $18.17.

NYSE volume leaders included Motorola , up 4 cents to $21.22; Lucent Technologies , down 2 cents to $2.91; Symbol Technologies , down $1.34 to $10.30; Citigroup ( C), up 18 cents to $43.68; Pfizer ( PFE), up 15 cents to $26.65; General Electric ( GE), down 11 cents to $34.39; and Time Warner ( TWX), up 16 cents to $17.18.

Nasdaq volume leaders included Microsoft ( MSFT), up 26 cents to $25.87; eBay ( EBAY), up $1.73 to $43.51; Intel ( INTC), up 13 cents to $27.27; Sirius Satellite Radio ( SIRI), up 12 cents to $6.94; and Cisco Systems ( CSCO), up 11 cents to $19.26.