In Nasdaq trading today shares of Apple Inc. rose $9.15, or 1.43%, to hit a new all-time intrday high of $645.49.

Yesterday, Apple dispersed its first quarterly dividend in some 17 years: $2.65 per share. Apple is also due to commence a $10 billion share buyback in the company’s fiscal 2013, which begins on September 30, 2012. The repurchase program is expected to be executed over three years, with the primary objective of neutralizing the impact of dilution from future employee equity grants and employee stock purchase programs.

Apple, the world’s most valuable company, currently has a market value of $604.74 billion.