Small-cap stocks plunged in tandem with the major indices Wednesday, and some of the worst losers came out of the tech sector.

Among these was Edgewater Technology ( EDGW), which plummeted 15.8% after the purveyor of information-technology services made just $914,000, or 7 cents a share, in the third quarter. The analyst who follows the company was looking for earnings to stay flat with last year's 9 cents a share, according to Thomson Financial. Shares of the Massachusetts firm were off $1.49 to $7.93.

Epicor Software ( EPIC), of Irvine, Calif., lost 7.3% to $12 after missing third-quarter estimates by a penny a share with non-GAAP income of $12.7 million, or 22 cents a share. Revenue, at $103.1 million, came in below the $107.6 million consensus.

A few small-cap chipmakers were also on the decline, among them New Jersey's Anadigics ( ANAD), and California-based Supertex ( SUPX), each of which came in under Wall Street's earnings expectations for the most recent quarter. Anadigics tumbled 20.4% to $15.40; Supertex slid 13.9% to $36.84.

And AMIS ( AMIS), parent to AMI Semiconductor, was off 13.9% after delaying its earnings release due to an internal review of its February 2007 standard cost valuation of inventories and related issues. The Idaho-based company plans to release those financials during the week of Nov. 5 and to turn in its regulatory filing on time, but it said there's a chance this could change.

AMIS also reported third-quarter revenue of $154.6 million, which comes in a hair below the $155.7 million average target. Shares were falling $1.31 to $8.31.

Elsewhere, Charles & Colvard ( CTHR), a Morrisville, N.C.-based moissanite-jewels manufacturer, surrendered 24.1% to $2.90 after its third-quarter profit took an 88.9% slide from last year to $246,000, or a penny a share. Revenue was off 45.7% year over year to $6.6 million. Analysts were seeking 7 cents a share on sales of $10.5 million.

Charles & Colvard also shaved down its full-year sales guidance by at least $2 million to between $30 million and $33 million against the $36.1 million consensus.

On the other hand, Minneapolis-based Appliance Recycling Centers of America ( ARCI) surged 32.7% after its third-quarter profit soared to $1.4 million, or 31 cents a share, from last year's break-even earnings of $21,000. That powers past the sole analyst's estimate for 17 cents a share. Appliance Recycline stock was changing hands at $10.34.

Also riding high on positive quarterly results was California's Iteris ( ITI), a maker of outdoor machine-vision systems and sensors. Shares vaulted 24.7% to $3.18 after fiscal second-quarter income tripled from last year to 6 cents a share, or $2.2 million, ahead of the only estimate for 2 cents a share. The company's $17 million revenue was in line.

Management-software company Phase Forward ( PFWD), of Waltham, Mass., beat on both top and bottom lines with third-quarter non-GAAP earnings of 16 cents a share on sales of $34.9 million. Shares jumped $3.34, or 17%, to $22.94.

Finally, Chuck E. Cheese's operator CEC Entertainment ( CEC) ramped up 13.5% to $29.01 after a slipping third-quarter profit of 50 cents a share that nonetheless surpassed the 48-cent average projection.

More broadly, however, the Russell 2000 sank 1.1% to 809.29 and the S&P SmallCap 600 gave up 1%.

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