Question · Q2 2026
Mike Cadiz sought additional details on the yields and reliability of Western Digital's products, particularly concerning multiple rollouts, and their implications for cost per bit declines. He also inquired about the progress and leverage of the Rochester test and integration site in accelerating customer transitions.
Answer
CEO Irving Tan confirmed ePMR product yields are consistently in the low 90s% range, with strong customer feedback on reliability and quality, evidenced by over 3.5 million units shipped last quarter. He stated that improving yields and increasing UltraSMR mix contribute to cost per bit declines. Regarding the Rochester site, he announced that HAMR qualification started this month (pulled forward from 1H CY2026) with one hyperscale customer, and next-generation ePMR qualification also commenced, with the Rochester lab playing a critical role in ensuring smooth, quick qualification and production reliability.
Ask follow-up questions
Fintool can predict
WDC's earnings beat/miss a week before the call

