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Western Digital quarterly revenue jumps 55.5% to $4.38 billion

Western Digital's revenue growth is speeding up. Results for the quarter ended October 2, 2026, from the earnings release filed with the SEC on Oct 22, 2026.

Octans ResearchPublished

Snapshot

Western Digital's revenue growth is speeding up: revenue jumped 55.5% to $4.38 billion in the quarter ended October 2, 2026, from $2.82 billion a year earlier, after 43.8% year over year growth the quarter before.

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as of 12:03 ET · Realtime derived data

What We Know

Revenue for the quarter ended October 2, 2026 was $4.38 billion, versus $2.82 billion in the same quarter a year earlier, up 55.5%. That is its highest quarterly revenue of the last eight quarters. Diluted earnings per share was $4.63, up from $3.07.

Bar chart: Western Digital: revenue, last eight quarters. US$ billions by fiscal quarter end, as of Oct 22, 2026. Dec 2024 2.41; Mar 2025 2.29; Jun 2025 2.61; Oct 2025 2.82; Jan 2026 3.02; Apr 2026 3.34; Jul 2026 3.75; Oct 2026 4.38. Latest quarter $4.38B, Up 55.5% vs a year earlier.
Source: SEC EDGAR (earnings release and XBRL financial data)

Quarterly revenue by fiscal quarter end, oldest first: Dec 2024: $2.41 billion; Mar 2025: $2.29 billion; Jun 2025: $2.61 billion; Oct 2025: $2.82 billion; Jan 2026: $3.02 billion; Apr 2026: $3.34 billion; Jul 2026: $3.75 billion; Oct 2026: $4.38 billion.

Octans View

Year over year revenue change by quarter, computed from the filed figures: Jan 2026 up 25.2%; Apr 2026 up 45.5%; Jul 2026 up 43.8%; Oct 2026 up 55.5%. On those figures, Western Digital's revenue growth is speeding up. That read compares the latest two year over year growth rates and nothing else.

Bear Case · Room for Disagreement

This brief covers reported revenue and diluted earnings per share only. It does not cover guidance, margins, segment results, cash flow or the earnings call, and it makes no forecast. Revenue is the total on the release line we matched; a company's own adjusted measures can differ.

Method and source. Octans Research matched the revenue line in the earnings release (Exhibit 99.1) to the year ago quarter the company reported in its own XBRL financial data; the two must agree before anything is published. The quarterly history comes from the same XBRL data. The text is generated from those verified figures by a fixed template; no model wrote it.

Chart

$WDC adjusted close, last 6 months $WDC adjusted close, last 6 months: series falling from 400 to 354 (−11.6%) from 2026-04-27 to 2026-10-22. Scale 300 to 800. 300400500600700800 2026-04-272026-10-22 $WDC ADJUSTED CLOSE, LAST 6 MONTHS −11.6% 354.2
Source: Tiingo · As of 2026-10-22Indicative, not investment advice.

Sources

  1. [1]SEC EDGAR — Western Digital earnings release for the quarter ended October 2, 2026 (Exhibit 99.1), filed Oct 22, 2026
  2. [2]SEC EDGAR — Western Digital XBRL financial data (company facts)

These are the sources this piece was drafted from. How we verify. Found an error? Tell us and we correct it in public.

$4.38B

Revenue for the quarter ended October 2, 2026 was $4.38 billion, versus $2.82 billion in the sa… · What we know

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