Western Digital's operating profit rose while earnings per share fell
Western Digital's new quarter shows why an investment gain in the comparison period can change the direction of an earnings headline. The operating result needs its own reading.
Did Western Digital's business weaken because earnings per share fell from the previous quarter? Its October 22 results show why that conclusion would skip an important part of the accounts.
For fiscal first-quarter 2027, which ended October 2, the storage company reported GAAP operating income of $2.046 billion, up 31% from $1.563 billion in the quarter ended July 3. Yet diluted earnings per common share fell 44%, from $8.21 to $4.63.
Both comparisons are sequential. They describe different levels of the income statement, rather than conflicting measurements of the same thing.
The earlier quarter contained a large investment gain
Western Digital's reconciliation shows a $2.05 billion gain on its retained interest in Sandisk in the July quarter. The October quarter shows none. The company explains that it retained an ownership interest when it separated its flash business and recognized gains from marking that interest to market.
That gain sits within interest and other income, below operating income. It therefore boosted the earlier earnings comparison without becoming operating profit from the storage business.
It is a major comparison item, but not a complete explanation by itself. The tables also show debt and equity transaction costs, income-tax differences and changes in diluted share counts. Subtracting the Sandisk gain alone would not produce a fully adjusted earnings comparison.
Read the operating result alongside the adjustments
The company's non-GAAP diluted earnings per share increased 30% sequentially, from $3.56 to $4.64. That measure excludes several items, including the Sandisk gain, and also uses an adjusted diluted share count.
Non-GAAP does not mean every excluded expense is irrelevant. Western Digital says the measures supplement GAAP results; they are not substitutes for them.
Our reading is that the quarter's operating improvement and its lower GAAP earnings per share can coexist. An investor assessing storage performance needs to distinguish operating results from investment-accounting effects, then inspect the rest of the reconciliation before treating either headline as the whole story.
Source: Western Digital's October 22, 2026 fiscal first-quarter results, including the unaudited tables and non-GAAP definitions. Figures and accounting explanations are issuer disclosures; interpretation is TrendyVest analysis.