What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.
Text: Here are four top-performing liquid stocks, Cadence Design Systems (CDNS), Southwest Airlines Co (LUV), Diodes Incorporated (DIOD) and Nova (NVMI), which investors can add to their portfolio for solid returns.
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mildly positive
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