Tech Stocks in Motion

Updated from 1:24 p.m. EST

Shares of Superconductor Technologies(SCON Quote) were among technology's losers Friday, falling 13% after swinging to a wider-than-expected loss during the fourth quarter and after the company said it will no longer offer quarterly financial guidance.

The maker of superconducting products posted a loss of $11.3 million, or 11 cents a share, on sales of $3.9 million. The results included restructuring and impairment charges totaling $1.9 million. Analysts polled by Thomson First Call were expecting a loss of 6 cents a share on sales of $4.12 million. A year ago, the company earned $1 million, or 1 cent a share, on sales of $16.4 million. Shares traded down 12 cents to 80 cents.

Essex(KEYW Quote) fell 1.7% after the provider of signal, image and information-processing solutions posted fourth-quarter results that beat expectations. The company earned $892,000, or 5 cents a share, on sales of $19 million. Analysts expected earnings of 3 cents a share on sales of $16.4 million. A year ago, the company earned $74,000, or 1 cent a share, on sales of $5.1 million. Looking ahead, Essex reaffirmed its 2005 sales outlook, saying that it expects sales of $155 million to $165 million. The results will include 10 months of sales from its Windermere subsidiary. Shares traded down 31 cents to $17.59. ...