In NASDAQ trading today, Apple Inc. (AAPL) shares gained $5.51, or 0.87%, on below average volume of 9,099,172 to set a new all-time closing high of $636.34.

Apple’s previous all-time closing high was $636.28, set on the last trading day before today, April 9, 2012.

Apple’s all-time intraday high is $644.00, set on April 10, 2012. Apple’s 52-week low stands at $354.24.

Apple’s market value currently stands at $596.51 billion.

The top five U.S. publicly-traded companies, based on market value:
1. Apple (AAPL) – $596.51B
2. Exxon Mobil (XOM) – $409.30B
3. Microsoft (MSFT) – $258.04B
4. Wal-Mart (WMT) – $244.12B
5. IBM (IBM) – $229.51B

Selected companies’ current market values:
• Google (GOOG) – $220.05B
• Intel (INTC) – $133.03B
• Amazon (AMZN) – $109.20B
• Cisco (CSCO) – $101.89B
• Disney (DIS) – $90.16B
• Hewlett-Packard (HPQ) – $38.49B
• Dell (DELL) – $21.39B
• Yahoo! (YHOO) – $17.76B
• Adobe (ADBE) – $16.55B
• Sony (SNE) – $11.88B
• Sirius XM (SIRI) – $9.90B
• Nokia (NOK) – $9.80B
• Research In Motion (RIMM) – $3.87B
• Advanced Micro Devices (AMD) – $2.95B
• RealNetworks (RNWK) – $0.28B

AAPL quote via NASDAQ here.

Related article:
Apple shares hit new all-time intraday, closing highs – April 9, 2012