With light trading volume because of the holiday, Apple stock hit an all-time high today, closing at $198.80. The company now has a market cap of $174 billion, and has risen 134.32 percent on the year. Apple is now worth about as much as networking giant Cisco. Shareholders are likely reactiong to predictions strong holiday sales for the company, plus possible introductions of new products at the Macworld Expo in January.

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