Shares of

Credence Systems

( CMOS) were among technology's losers Friday, plunging 24% after the maker of test equipment for the semiconductor industry posted disappointing second-quarter results and warned that third-quarter results would be below expectations.

For the second quarter ended April 30, the company reported a loss of $14.2 million, or 14 cents a share, on revenue of $124.8 million. The results included a write-down of inventory, amortization of intangibles, restructuring charges and stock-based compensation costs. In all, Credence included $19.4 million in charges. Analysts polled by Thomson First Call expected a profit of 4 cents a share and revenue of $126.3 million. A year earlier, the company posted a loss of $19.5 million, or 21 cents a share, on revenue of $101.9 million.

Credence sees a third-quarter loss of 9 cents to 11 cents a share, including a charge of $12 million to $14 million. The company predicts revenue of $125 million to $129 million. Analysts project a profit of 8 cents a share on revenue of $135.7 million. Following the report, Credence shares were downgraded by Merriman Curhan Ford and ThinkEquity Partners. Shares were down $1.52 to $4.88.

Shares of

Juniper Networks

(JNPR) - Get Report

rose 2% after Standard & Poor's said it plans to add the networking-products company to its

S&P 500

index on a date to be determined. Juniper will replace

Albertson's

(ABS)

, which is being acquired by

Supervalu

(SVU)

. Shares of Juniper were trading up 31 cents to $15.60.

Chipmos Technologies

(IMOS) - Get Report

fell 3% after the semiconductor-testing-and-assembly services company priced 6.96 million shares at $6 apiece. The company said the stock sale is being done on behalf of its largest shareholder, Mosel Vitelic, a company that makes computer components. Mosel may also sell another 1.04 million shares to cover over-allotments. Chipmos shares were down 18 cents to $6.41.

Shares of

Ditech Networks

( DITC) slumped 10% after the telecom-equipment company posted fourth-quarter earnings that were in line with estimates, but down significantly from a year ago. The company earned $2 million, or 6 cents a share, compared with $7.6 million, or 23 cents a share, a year earlier. Revenue for the quarter ended April 30 dropped to $20 million from $23 million. Analysts expected earnings of 6 cents a share on revenue of $19.2 million.

Looking ahead, Ditech sees sequential sales growth of 10%, which implies sales of $22 million. Analysts project sales of $20.7 million. Shares were trading down $1 to $9.21.

Agile Software

( AGIL) fell 5% after the company posted mixed fourth-quarter results. The company earned $3.7 million, or 6 cents a share, on revenue of $34 million. Excluding a one-time gain, the company earned $1.7 million, or 3 cents a share, for the quarter ended April 30. Analysts projected earnings of a penny a share on revenue of $34.5 million. Last year, the company posted an adjusted second-quarter loss of $1.1 million, or 2 cents a share, on revenue of $32 million. Shares recently had dropped 34 cents to $6.56.

Other technology movers included

JDSU

(JDSU)

, up 10 cents to $3.06;

Sirius Satellite Radio

(SIRI) - Get Report

, down 1 cent to $4.21;

Intel

(INTC) - Get Report

, up 22 cents to $18.27;

Microsoft

(MSFT) - Get Report

, down 12 cents to $23.62;

Cisco Systems

(CSCO) - Get Report

, down 25 cents to $20.27;

Sun Microsystems

(SUNW) - Get Report

, unchanged at $4.33;

Dell

(DELL) - Get Report

, up 44 cents to $24.74;

Lucent Technologies

( LU), up 2 cents to $2.59; and

Oracle

(ORCL) - Get Report

, down 1 cent to $14.06.