Apple’s shares fell by about 8 per cent in after-hours trading on Thursday, despite a record quarterly performance, after the company warned that supply constraints could affect the iPhone, iPad and Mac in the coming months. Revenue from iPhone sales rose significantly, while Apple’s cautious approach to spending on artificial-intelligence infrastructure helped support profitability. Investors, however, focused on the threat of component shortages and rising memory costs.
The company’s latest earnings report, covering the third quarter of its financial year, showed solid demand for its flagship handset. The initial reaction to the numbers was positive, but that mood gave way to selling as executives cautioned that future supply bottlenecks could disrupt production across Apple’s main hardware lines. The warning extended beyond the iPhone, with the company saying that the iPad and Mac could also be affected in the months ahead.
Apple has deliberately moved more slowly than some of its technology rivals in pouring capital into generative AI, and that restraint now appears to be paying off. The record quarter reflected healthier margins and resilient demand, offering a contrast with other large technology companies whose profits have been squeezed by heavy AI infrastructure spending. Yet the same industry-wide build-out is now feeding back into Apple’s supply chain, as demand for advanced memory chips outstrips supply and pushes up costs across the semiconductor market.
Memory costs were a recurring theme on the earnings call. The global race to build AI data centres has increased demand for high-bandwidth memory, driving up prices and creating uncertainty for hardware manufacturers. Analysts said Apple was not immune to those pressures, even though its products have historically commanded premium pricing that can absorb some input-cost inflation. The company’s warning suggests those cost pressures are now serious enough to affect production availability, not just profit margins.
The warning is the latest illustration of how the AI boom is reshaping the broader technology supply chain. Data-centre builders are absorbing large portions of the world’s advanced chip and memory output, leaving consumer hardware manufacturers to compete for what remains. That dynamic has already pushed up memory prices and is now threatening product availability across several major product lines.
The earnings call also carried a significant transition moment, with chief executive Tim Cook widely seen as passing the baton to Apple’s next generation of leadership. The strong quarter provided a solid backdrop for that handover, but supply constraints and memory-cost pressures could overshadow the rest of the year. Investors will now examine whether Apple can maintain its production schedules through the period of tight component availability it has flagged.
The after-hours slide underscores how closely Apple’s stock is tied to supply-chain signals. Even a record quarter was not enough to reassure the market on Thursday. The warning left little doubt that the bottlenecks could spill into future results, and Apple shares are likely to remain sensitive to any further news about component supplies and memory prices.



