Stock Market Today, Oct. 16: Apple Edges Higher on iPhone Duo Preorder Surge

Apple (AAPL) closed up 0.43% at $343.46 on October 16, 2026, defying a sharp market selloff as demand for its new iPhone Duo foldable smartphone overwhelmed preorder capacity.

The foldable sold out within minutes of going on sale, with delivery dates pushed to late January. That timeline implies the initial allocation was exhausted almost immediately, and buyers entering the queue now won't receive devices for months.

The relative strength stood out. The S&P 500 fell 1.09% and the Nasdaq dropped 2.14%, with investors focused on AI-related debt pressure and semiconductor weakness. AAPL's modest gain against a Nasdaq decline of more than 2% is a divergence of roughly 2.6 percentage points, a meaningful gap on a day when growth and chip-heavy names took the brunt of the selling.

Interpretation: the muted size of the move suggests the preorder news may already be partly reflected in the price, and the market is rewarding AAPL's product-driven demand story while punishing exposure to AI financing and semiconductor risk. That reading is our inference rather than something the source states directly.