Justin Sullivan/Getty ImagesNvidia on Tuesday claimed the spot of the world's most valuable company.Shares of the chipmaker rose 4%, helping it edge past Microsoft's market cap.Investors are still bullish on the company even after a 173% rally this year.Nvidia stock rose 4% on Tuesday, helping push its market capitalization past that of Microsoft to claim the title of the world's most valuable company.The chipmaker on Tuesday boasted a market value of $3.338 trillion, edging out Microsoft's $3.326 trillion market cap by just $12 billion.Nvidia stock hit an intraday high of $136.25 Tuesday afternoon.That equates to a split-adjusted price of $1,362.50.