Shares of

Watts Water Technologies

(WTS) - Get Report

were among the

NYSE's

winners Wednesday, jumping 17% after the maker of valves and other water products posted better-than-expected second-quarter earnings.

For the period ended July 2, the company earned $22.4 million, or 68 cents a share, on revenue of $300.2 million. The results included various items from Watts' restructuring plan that resulted in a net gain of $3.6 million, or 11 cents a share. Analysts polled by Thomson First Call expected earnings of 51 cents a share on revenue of $285.1 million. During the year-earlier period, the company earned $13.9 million, or 42 cents a share, on revenue of $228.2 million. "Aided by acquisitions and internal growth, we again achieved record results with all segments contributing to our growth in sales and earnings," Watts said. Shares were trading up $4.83 to $33.52.

Shares of

Blue Nile

(NILE)

soared 33% after the online jewelry retailer posted better-than-expected second-quarter results. The company earned $3.1 million, or 18 cents a share, on sales of $56.9 million. Analysts had forecast earnings of 13 cents a share and sales of $52.6 million. During the year-earlier period, Blue Nile earned $2.8 million, or 15 cents a share, on sales of $43.8 million. "We delivered exceptional second-quarter performance due to strong consumer demand in our core product offerings," the company said. "Our aggressive pricing initiatives worked to accelerate our top line growth, while disciplined execution by our employees throughout the business delivered outstanding earnings results."

Looking ahead, Blue Nile now sees full-year earnings of 67 cents to 74 cents a share on sales of $240 million to $252 million. Previously, the company predicted a profit of 64 cents to 72 cents a share and sales of $230 million to $245 million. Analysts project earnings of 70 cents a share on sales of $240.8 million.

Blue Nile also boosted its stock-repurchase plan by $50 million. The additional buyback is on top of the company's previously announced $100 million buyback plan. Some $47.2 million remains to be bought under the previous plan. Shares were up $7.86 to $31.96.

Keystone Automotive

(KEYS) - Get Report

slid 12% after the auto-parts distributor posted weaker-than-expected first-quarter earnings. For the three months ended June 30, the company earned $6.1 million, or 37 cents a share, up from $4.7 million, or 30 cents a share, a year earlier. Analysts expected earnings of 41 cents a share for the latest quarter. Keystone posted revenue of $167.7 million, up from $144.8 million last year. Shares were trading at $36.70, down 5.04.

Shares of

Esterline Technologies

(ESL)

tumbled 20% after the supplier of aerospace and military products warned that third- and fourth-quarter earnings would be below expectations. For the third quarter ended July 28, the company estimates earnings of 40 to 45 cents a share. Analysts project earnings of 63 cents a share. "A number of factors are working together to dampen third-quarter performance, including the recent accident at our Wallop operation affecting the Advanced Materials segment," the company said. Program delays in the company's sensors and systems business hurt results as well.

Esterline sees fourth-quarter earnings of 65 to 70 cents a share, below analysts' target of 72 cents. Shares recently were down $8.38 to $33.77.

Kansas City Southern

(KSU) - Get Report

jumped 12% after the railroad company posted better-than-expected second-quarter earnings. The company earned $19.2 million, or 24 cents a share, on revenue of $413.1 million. Analysts expected earnings of 19 cents a share. During the year-earlier period, the company reported a loss of $27.3 million, or 33 cents a share, on revenue of $381.1 million. "Stronger second-quarter earnings and improved operations demonstrate the continued progress KCS is making toward integrating its U.S. and Mexican rail operations," the company said. Shares were trading up $2.86 to $26.10.

NYSE volume leaders included

Ford

(F) - Get Report

, up 33 cents to $6.91;

Qwest Communications

(Q)

, up 27 cents to $8.67;

Lucent Technologies

( LU), unchanged at $2.08;

Time Warner

(TWX)

, up 42 cents to $16.67;

Cendant

( CD), down 15 cents to $2.29;

Pfizer

(PFE) - Get Report

, up 38 cents to $26.37; and

Exxon Mobil

(XOM) - Get Report

, up 62 cents to $68.80.

Nasdaq's

top volume movers were

Cisco Systems

(CSCO) - Get Report

, up 1 cent to $17.49;

Rambus

(RMBS) - Get Report

, down $3.87 to $13.11;

Sirius Satellite Radio

(SIRI) - Get Report

, up 1 cent to $4.09;

Intel

(INTC) - Get Report

, up 1 cent to $17.67;

Sun Microsystems

(SUNW) - Get Report

, up 7 cents to $4.27;

Oracle

(ORCL) - Get Report

, down 6 cents to $14.67; and

Microsoft

(MSFT) - Get Report

, up 16 cents to $24.15.