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Side-by-side financial comparison of Kellanova (K) and Western Digital (WDC). Click either name above to swap in a different company.

Western Digital is the larger business by last-quarter revenue ($3.3B vs $3.3B, roughly 1.0× Kellanova). Western Digital runs the higher net margin — 96.0% vs 9.5%, a 86.6% gap on every dollar of revenue. On growth, Western Digital posted the faster year-over-year revenue change (45.5% vs 0.8%). Western Digital produced more free cash flow last quarter ($978.0M vs $359.0M). Over the past eight quarters, Kellanova's revenue compounded faster (-9.0% CAGR vs -9.7%).

Kellanova, formerly known as the Kellogg Company, is an American multinational food manufacturing company owned by Mars Inc. headquartered in Chicago, Illinois. The renaming took effect on October 2, 2023, and the company's North American cereal operations were spun off to form the WK Kellogg Co at the same time.

Western Digital Corporation, doing business as WD, is an American data storage company headquartered in San Jose, California. Established in 1970, the company is one of the world's largest manufacturers of hard disk drives (HDDs).

K vs WDC — Head-to-Head

Bigger by revenue
WDC
WDC
1.0× larger
WDC
$3.3B
$3.3B
K
Growing faster (revenue YoY)
WDC
WDC
+44.6% gap
WDC
45.5%
0.8%
K
Higher net margin
WDC
WDC
86.6% more per $
WDC
96.0%
9.5%
K
More free cash flow
WDC
WDC
$619.0M more FCF
WDC
$978.0M
$359.0M
K
Faster 2-yr revenue CAGR
K
K
Annualised
K
-9.0%
-9.7%
WDC

Income Statement — Q3 FY2025 vs Q1 FY2027

Metric
K
K
WDC
WDC
Revenue
$3.3B
$3.3B
Net Profit
$309.0M
$3.2B
Gross Margin
33.3%
50.2%
Operating Margin
13.9%
35.7%
Net Margin
9.5%
96.0%
Revenue YoY
0.8%
45.5%
Net Profit YoY
-15.8%
516.3%
EPS (diluted)
$0.88
$8.20

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
K
K
WDC
WDC
Q3 26
$3.3B
Q2 26
$3.0B
Q1 26
$3.0B
Q4 25
$2.8B
Q3 25
$3.3B
Q2 25
$3.2B
$-1.2B
Q1 25
$3.1B
$2.3B
Q4 24
$3.1B
$4.3B
Net Profit
K
K
WDC
WDC
Q3 26
$3.2B
Q2 26
$1.8B
Q1 26
$1.8B
Q4 25
$1.2B
Q3 25
$309.0M
Q2 25
$299.0M
$282.0M
Q1 25
$304.0M
$520.0M
Q4 24
$365.0M
$594.0M
Gross Margin
K
K
WDC
WDC
Q3 26
50.2%
Q2 26
45.7%
Q1 26
45.7%
Q4 25
43.5%
Q3 25
33.3%
Q2 25
34.0%
Q1 25
34.3%
39.8%
Q4 24
37.7%
35.4%
Operating Margin
K
K
WDC
WDC
Q3 26
35.7%
Q2 26
30.1%
Q1 26
30.1%
Q4 25
28.1%
Q3 25
13.9%
Q2 25
13.7%
Q1 25
13.9%
33.1%
Q4 24
17.0%
19.9%
Net Margin
K
K
WDC
WDC
Q3 26
96.0%
Q2 26
61.1%
Q1 26
61.1%
Q4 25
41.9%
Q3 25
9.5%
Q2 25
9.3%
-24.4%
Q1 25
9.9%
22.7%
Q4 24
11.7%
13.9%
EPS (diluted)
K
K
WDC
WDC
Q3 26
$8.20
Q2 26
$4.73
Q1 26
$4.73
Q4 25
$3.07
Q3 25
$0.88
Q2 25
$0.85
$0.72
Q1 25
$0.87
$1.42
Q4 24
$1.05
$1.63

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
K
K
WDC
WDC
Cash + ST InvestmentsLiquidity on hand
$240.0M
$2.0B
Total DebtLower is stronger
$4.3B
$1.6B
Stockholders' EquityBook value
$4.2B
$9.7B
Total Assets
$15.6B
$15.0B
Debt / EquityLower = less leverage
1.02×
0.16×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
K
K
WDC
WDC
Q3 26
$2.0B
Q2 26
$2.0B
Q1 26
$2.0B
Q4 25
$2.0B
Q3 25
$240.0M
Q2 25
$354.0M
$2.1B
Q1 25
$330.0M
$3.5B
Q4 24
$694.0M
$2.3B
Total Debt
K
K
WDC
WDC
Q3 26
$1.6B
Q2 26
$4.7B
Q1 26
$4.7B
Q4 25
$4.7B
Q3 25
$4.3B
Q2 25
$4.3B
$4.7B
Q1 25
$5.0B
$7.3B
Q4 24
$5.0B
$7.4B
Stockholders' Equity
K
K
WDC
WDC
Q3 26
$9.7B
Q2 26
$7.1B
Q1 26
$7.1B
Q4 25
$5.9B
Q3 25
$4.2B
Q2 25
$4.1B
$5.3B
Q1 25
$3.9B
$5.2B
Q4 24
$3.8B
$12.1B
Total Assets
K
K
WDC
WDC
Q3 26
$15.0B
Q2 26
$15.6B
Q1 26
$15.6B
Q4 25
$14.4B
Q3 25
$15.6B
Q2 25
$15.9B
$14.0B
Q1 25
$15.5B
$16.4B
Q4 24
$15.6B
$25.5B
Debt / Equity
K
K
WDC
WDC
Q3 26
0.16×
Q2 26
0.65×
Q1 26
0.65×
Q4 25
0.80×
Q3 25
1.02×
Q2 25
1.05×
0.89×
Q1 25
1.28×
1.42×
Q4 24
1.32×
0.61×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
K
K
WDC
WDC
Operating Cash FlowLast quarter
$503.0M
$1.1B
Free Cash FlowOCF − Capex
$359.0M
$978.0M
FCF MarginFCF / Revenue
11.0%
29.3%
Capex IntensityCapex / Revenue
4.4%
Cash ConversionOCF / Net Profit
1.63×
0.35×
TTM Free Cash FlowTrailing 4 quarters
$599.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
K
K
WDC
WDC
Q3 26
$1.1B
Q2 26
$745.0M
Q1 26
Q4 25
$672.0M
Q3 25
$503.0M
Q2 25
$169.0M
$746.0M
Q1 25
$116.0M
$508.0M
Q4 24
$467.0M
$403.0M
Free Cash Flow
K
K
WDC
WDC
Q3 26
$978.0M
Q2 26
$653.0M
Q1 26
Q4 25
$599.0M
Q3 25
$359.0M
Q2 25
$21.0M
$675.0M
Q1 25
$-60.0M
$379.0M
Q4 24
$279.0M
$287.0M
FCF Margin
K
K
WDC
WDC
Q3 26
29.3%
Q2 26
21.6%
Q1 26
Q4 25
21.3%
Q3 25
11.0%
Q2 25
0.7%
-58.5%
Q1 25
-1.9%
16.5%
Q4 24
8.9%
6.7%
Capex Intensity
K
K
WDC
WDC
Q3 26
Q2 26
Q1 26
Q4 25
2.6%
Q3 25
4.4%
Q2 25
4.6%
-6.2%
Q1 25
5.7%
5.6%
Q4 24
6.0%
2.7%
Cash Conversion
K
K
WDC
WDC
Q3 26
0.35×
Q2 26
0.40×
Q1 26
Q4 25
0.57×
Q3 25
1.63×
Q2 25
0.57×
2.65×
Q1 25
0.38×
0.98×
Q4 24
1.28×
0.68×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

K
K

Retail Channel Snacks$2.0B62%
Retail Channel Cereal$678.0M21%
Noodlesand Other$280.0M9%
Frozen And Specialty Channels$275.0M8%

WDC
WDC

Segment breakdown not available.

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