Here are the day’s biggest percentage gainers and losers, along with top volume leaders, among companies with a market cap between $100 million and $750 million:


• Fuqi International, Inc. (Nasdaq:FUQI), up 19% to $7.25 on news of an improved first-quarter and full-year 2008 guidance.
• Aspect Medical Systems, Inc. (Nasdaq:ASPM), up 19% to $6.52 on news it expects second-quarter earnings above Wall Street’s projections.
• Metalico Inc. (AMEX:MEA), up 18% to $14.15.


• AMCORE Financial, Inc. (Nasdaq:AMFI), down 30% to $13.71 on news of a first-quarter loss.
• Epicor Software Corp. (Nasdaq:EPIC), down 27% to $7.85 on news it projects first-quarter earnings below analysts’ consensus.
• Alto Palermo S.A. (Nasdaq:APSA), down 15% to $14.25.

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