Sensing brisk demand for its initial public offering, General Motors Co. raises the high-end price for the first shares of its stock by 14% to an estimated $33.

Before GM executives embarked on a global road show to stimulate interest in Thursday’s offering, the auto maker estimated its stock would price between $26 and $29 per share. GM hiked that price earlier today to between $32 and $33 per share.

A final price for the 365 million common shares likely will come Wednesday, and Wall Street underwriters for the offering could sell another 54.8 million shares if demand warrants, GM says in a statement.

The auto maker today also increases the expected size of the number of preferred shares it plans to sell to $4 billion from $3 billion. GM plans to sell 80 million shares of preferred stock, resulting in a price per share of $50.

Since exiting bankruptcy 15 months ago, the auto maker has taken advantage of its cleansed balance sheet, smaller manufacturing footprint and shrunken payroll to report more than $4 billion in profits so far this year.

GM thinks it can earn between $11 billion and $13 billion anually, pre-tax, in an average sales year, but as much as $19 billion when the market fully recovers.

At the same time, investors remain wary of GM’s costly restructuring of Adam Opel GmbH in Europe and the government’s continued ownership in the auto maker.

The U.S. Treasury invested some $50 billion of taxpayer money into GM’s restructuring for a 60.8% stake. The IPO is expected to reduce that holding to about 43%.