Shares of Universal Technical Institute ( UTI) were among the NYSE's winners Tuesday, jumping 14% after the provider of technical education training posted fourth-quarter results that topped Wall Street forecasts.

The company earned $9.2 million, or 32 cents a share, on sales of $83.9 million. Analysts polled by Thomson First Call expected earnings of 28 cents a share on sales of $83.1 million. A year earlier, the company earned $6.7 million, or 23 cents a share, on sales of $69.5 million. Sales in the recent period were buoyed by higher average student enrollment and tuition increases, the company said.

Looking ahead, Universal Technical sees fiscal 2006 sales growth of 19% to 21%. Analysts expect sales of $369 million, or sales growth of slightly less than 19%. Shares were trading up $4.28 to $34.96.

Taser ( TASRE) climbed 17% after the stun-gun maker said the Securities and Exchange Commission closed an investigation into the company without recommending an enforcement action. The SEC had been investigating the medical safety of the Taser device and certain accounting and disclosure issues. The SEC continues, meanwhile, to investigate issues related to trading in the company's stock, the company said. Taser shares were up $1.04 to $7.16.

Shares of Diebold ( DBD) rose 6% after Walden O'Dell resigned as the company's chairman and chief executive for "personal reasons." The maker of ATMs and electronic voting machines named President and Chief Operating Officer Thomas Swidarski as its new CEO, while director John Lauer will serve as non-executive chairman. Diebold also backed its guidance for fourth-quarter earnings of 50 cents to 60 cents a share, including 13 cents in restructuring charges. The company's shares were up $2.13 to $39.86.

Shares of Best Buy ( BBY) slumped 11% after the consumer electronics retailer posted weaker-than-expected third-quarter earnings. The company earned $138 million, or 28 cents a share, on sales of $7.34 billion. Analysts expected earnings of 30 cents a share and sales of $7.34 billion. During last year's third quarter, the company earned $148 million, or 30 cents a share, on sales of $6.65 billion.

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