Apple shares dropped about 4 per cent in premarket trading on Tuesday, putting the tech giant on track to lose over $170 billion from its $4.94 trillion valuation. The decline followed executive warnings that escalating memory component costs will squeeze profitability.

Chief Executive John Ternus delivered his first earnings report on Monday, describing the current memory-pricing climate as “unprecedented” and cautioning that cost pressures will extend beyond the quarter ending in December. The company expects gross margins for the period to slip to between 45 per cent and 46 per cent.

That guidance marks a contraction from the 47.9 per cent gross margin reported for the September quarter, even after factoring in tariff refunds. The cost squeeze comes as Apple exhausts the advantage of earlier, lower-priced memory inventories, leaving fresh hardware manufacturing exposed to higher market rates.

The hardware manufacturer had managed production costs throughout 2026 by tapping stockpiles of memory purchased under earlier, cheaper contracts. Those reserves are now depleted. Fresh component purchases reflect elevated spot and contract rates, exposing hardware production directly to wholesale price spikes.

Rising memory bills arrive alongside operational expenses from rolling out generative features across the Siri ecosystem. Apple must now pay more for core memory silicon inside every handset while spending heavily on server infrastructure to process assistant queries. For regional consumer electronics retailers, higher component inputs point toward wholesale price increases across upcoming device cycles.

The margin compression follows a record September quarter for iPhone revenue despite broader consumer spending headwinds. 54 billion.

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