Apple (AAPL) once again became the world's most valuable company Thursday. It re-took the crown from Exxon Mobil.

AAAPL closed at US$456.68 per share, rising US$4.15 per share during the day and almost US$50 over the past month. Apple was reaching the US$415 billion threshold. However, this figure was still a far cry from its highest value this year of US$549.03 per share.

On the other hand, Exxon Mobil's shares fell, resulting in overall market cap of US$412 billion. Exxon Mobil became the world's most valuable company way back April 2013. During this month, AAPL went down below the US$400 threshold. Exxon Mobil was a few billion dollars above the company's US$380 valuation.

This comeback indicated that investors were now building up their AAPL stocks. The reason behind this was the anticipated lineup of new products and services that will be released this fall. These new launches were expected to place Apple at the top of the consumer electronics market for the holiday season.