Invisible Shield for Apple iPhone 4!Shares of Apple Inc. today rose $2.29, or 0.84%, on average volume of 25,709,680 shares to set a new all-time closing high of $274.16.

Apple’s previous closing high was $271.87 set yesterday. Apple’s all-time high (intraday) stands at $275.00, set during trading today. Apple’s 52-week low is $132.88.

At market close, Apple’s market value stands at $249.39 billion.

The top five U.S. publicly-traded companies, based on full market values, are:
1. Exxon Mobil (XOM) – $296.26B
2. Apple (AAPL) – $249.39B
3. Microsoft (MSFT) – $231.72B
4. Berkshire-Hathaway (BRKA) – 197.81B
4. Wal-Mart (WMT) – $191.38B

Selected companies’ current market values:
• Google (GOOG) – $159.25B
• IBM (IBM) – $166.90B
• Cisco (CSCO) – $134.15B
• Intel (INTC) – $119.07B
• Hewlett-Packard (HPQ) – $112.01B
• Disney (DIS) – $68.84B
• Amazon (AMZN) – $56.08B
• Research In Motion (RIMM) – $34.02B
• Nokia (NOK) – $33.01B
• Sony (SNE) – $28.03B
• Dell (DELL) – $27.49B
• Yahoo! (YHOO) – $21.52B
• Adobe (ADBE) – $17.65B
• Motorola (MOT) – $16.87B
• Advanced Micro Devices (AMD) – $5.95B
• RealNetworks (RNWK) – $507.19M

AAPL quote via NASDAQ here.