Apple Inc. shares today rose $2.71, or 0.82%, on well-below-average volume of 8,035,311 shares to set a new all-time closing high of $334.00.

Apple’s previous all-time closing high was $331.29 set yesterday. Apple’s all-time intraday high stands at $334.34, set today. Apple’s 52-week low is $188.68.

At market close, Apple’s market value stands at $306.23 billion.

The top five U.S. publicly-traded companies, based on market value, are:
1. Exxon Mobil (XOM) – $376.78B
2. Apple (AAPL) – $306.23B
3. Microsoft (MSFT) – $239.55B
4. Berkshire-Hathaway (BRKA) – $200.27B
5. Google (GOOG) – $194.77B

Selected companies’ current market values:
• Wal-Mart (WMT) – $193.81B
• IBM (IBM) – $182.69B
• Intel (INTC) – $116.80B
• Cisco (CSCO) – $115.12B
• Hewlett-Packard (HPQ) – $96.82B
• Amazon (AMZN) – $84.12B
• Disney (DIS) – $75.67B
• Nokia (NOK) – $39.54B
• Sony (SNE) – $36.33B
• Research In Motion (RIMM) – $32.15B
• Dell (DELL) – $26.77B
• Yahoo! (YHOO) – $22.04B
• Motorola Mobility (MMI) – N/A
• Adobe (ADBE) – $16.33B
• Advanced Micro Devices (AMD) – $6.07B
• RealNetworks (RNWK) – $564.37M

AAPL quote via NASDAQ here.