Complete your iPad experience with ZAGGmate!Apple Inc. shares today rose $2.73, or 0.86%, on above average volume of 18,831,900 shares to set a new all-time closing high of $320.17.

Apple’s previous all-time closing high was $318.62 set on November 8, 2010. Apple’s all-time intraday high now stands at $322.33, set today. Apple’s previous all-time intraday high was $321.30 set on November 9, 2010. Apple’s 52-week low is $188.68.

Advertisement: Apple Store Online: Save up to $100 on a new Mac and printer. Free shipping. Order now.

At market close, Apple’s market value stands at $293.68 billion.

The top five U.S. publicly-traded companies, based on market value, are:
1. Exxon Mobil (XOM) – $359.58B
2. Apple (AAPL) – $293.68B
3. Microsoft (MSFT) – $229.63B
4. Berkshire-Hathaway (BRKA) – 199.33B
4. Wal-Mart (WMT) – $197.09B

Selected companies’ current market values:
• Google (GOOG) – $184.95B
• IBM (IBM) – $180.13B
• Intel (INTC) – $121.04B
• Cisco (CSCO) – $107.68B
• Hewlett-Packard (HPQ) – $96.37B
• Amazon (AMZN) – $79.92B
• Disney (DIS) – $71.12B
• Nokia (NOK) – $36.83B
• Sony (SNE) – $36.70B
• Research In Motion (RIMM) – $33.10B
• Dell (DELL) – $26.64B
• Yahoo! (YHOO) – $21.29B
• Motorola (MOT) – $19.16B
• Adobe (ADBE) – $14.87B
• Advanced Micro Devices (AMD) – $5.33B
• RealNetworks (RNWK) – $506.03M

AAPL quote via NASDAQ here.