TSMC's shifting cost structure is pressuring gross margin despite revenue and EPS beats. TSMC reported Q3 gross margin of 66.4%, down from 67.7% in Q2, and another decline is guided next quarter; Arizona is expected to drag gross margin by 2-4%. TSMC is checking AI data-center progress as it plans wafer capacity, while reiterating long-term AI demand strength. Price hikes may be next, given management's commitment to protect shareholder interests. x.com x.comÂ

