Range
Memory makers: gross margin
Quarterly GAAP gross margin. Samsung is company-wide (its memory division only discloses operating profit).
AI accelerators and CPUs: gross margin
Quarterly GAAP gross margin.
Semiconductor equipment: gross margin
Quarterly GAAP gross margin.
Hard drives: gross margin
Quarterly GAAP gross margin. Western Digital includes flash until the Sandisk spin-off in Feb 2025.