Stocks in Motion: Mace Catches Security Bid

Shares of IPIX(IPIX Quote), which supplies video technology for commercial and security applications, rose $2.26, or 37.5%, to $8.29, on volume of nearly 24 million shares.

First Virtual(FVCX Quote), which last week announced that its audit committee is investigating certain irregular sales transactions in its China operations, saw its shares rise 42 cents, or 22.6%, to $2.28.

Shares of Digital Recorders(TBUS Quote) rose $1.43, or 26.8%, to $6.76.

International Electronics(IEIB Quote), which makes electronic security systems, was off to the races on Wednesday as well. Shares traded up $1.36, or 34.3%, to $5.33.

In other Nasdaq action, shares of Zix(ZIXI Quote) got hammered after the company said that second-quarter revenue would fall short of expectations. After announcing a wider-than-expected loss of 30 cents per share (excluding items) on revenue of $2.8 million during the first quarter, the company told Wall Street that it expected to deliver revenue of $3.4 million to $3.8 million during the second quarter.

Analysts were looking for the e-prescriptions company to report revenue of $4 million. Shares of Zix finished down $2.12, or 15.6%, to $11.49.

Shares of CNT(CMNT Quote), a data-storage company, slumped after the company preannounced weak first-quarter results. The company said that instead of reporting pro forma earnings of 2 cents to 5 cents, as previously stated, it will lose 3 cents to 5 cents a share when it reports first-quarter earnings on May 17.

CNT said that the shortfall is "primarily due to product mix, managed service orders, availability of new features and inventory lead times." Shares of CNT traded down $1.22, or 17.1%, to $5.92.

Over on the Big Board, shares of Charter One Financial(CF Quote) lifted after it agreed to be acquired.

Royal Bank of Scotland, through its Citizens Financial Group, agreed to buy Charter One for $10.5 billion, or $44.50 per share. Shares of Charter One ended up $7.91, or 22%, to $43.86.