Shares of chip equipment vendor ASML Holding are up $3.50, or 3.4%, at $106.57, in early trading, after the company this morning reported fiscal Q2 revenue and earnings per share that topped analysts' expectations, and forecast this quarter's revenue higher as well. The company also announced a plan to buy back $750 million of its shares, or 3.3 million, which would be almost 2% of its market cap.