U.S. listed shares of semiconductor maker Taiwan Semiconductor Manufacturing (TSM) have moved up after a report in Commercial Times, a Chinese language financial paper, said Apple (AAPL) moved the production of its A6 X processors to the company and away from Samsung (SSNLF). As Apple moves to become less reliant on Samsung, TSMC may begin trial production of the chips in Q1, according to the report. Apple has also been rumored to switch to TSMC's 20nm process for quad-core processors it uses in a number of products, the report said. Also, in an note to investors this morning, Citigroup analyst Roland Shu called TSMC the research firm's top pick among semiconductor foundries shifting their competitive models to a "technology-driven" one from a "cost-driven" model. Shu said the company's near monopoly on some advanced manufacturing technologies places it ahead of a number of competitors. TSMC may be able to use its competitive position to secure one or two additional large customers contributing over 10% of its revenues in the upcoming year or two, according to Shu, who kept a Buy rating on its shares. In midday trading, TSMC shares rose 84c, or 4.90%, to $18.00.