) are higher on the session by 1.70%, trading at $31.71. Overall call volume is now running at 2.48x the daily average, with 74% of all calls traded being purchases on the offer. 1,267 contracts have traded on the session so far. Ultratech, Inc. develops, manufactures and markets photolithography and laser thermal processing equipment designed for manufacturers of integrated circuits, including advanced packaging processes and various nanotechnology components, thin film head magnetic recording devices, optical networking devices, laser diodes and high-brightness light emitting diodes.