Stocks of Apple briefly topped 600 dollars on Thursday, one day before its new generation of iPad hits the store.

Apple's shares climbed as high as 600.01 dollars shortly after the market opened, the first time in the company's history and only less than a month after its prices broke 500 dollars.

The surge in Apple's shares came one day before its latest creation meets the public on Friday. Now, the market capitalization is nearly 555 billion dollars, the most valuable company in the world.

The new iPad features higher-resolution screen, faster processing chip and a larger battery compared to the previous model. Some analysts had expected the company to sell one million of its new iPad on the first day sale in the U.S., Canada and ten other countries.

Earlier this week, Morgan Stanley and Canaccord Genuity both lifted their price targets on the stock to above 700 dollars a share.