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

Vistra Corp. is the larger business by last-quarter revenue ($4.8B vs $3.0B, roughly 1.6× Western Digital). Western Digital runs the higher net margin — 61.1% vs 4.8%, a 56.2% gap on every dollar of revenue. On growth, Western Digital posted the faster year-over-year revenue change (31.5% vs 31.2%). Over the past eight quarters, Vistra Corp.'s revenue compounded faster (23.3% CAGR vs -6.6%).

Vistra may refer to either of two companies:Vistra, a corporate services company based in Hong Kong Vistra Corp, an energy company based in Texas

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).

VST vs WDC — Head-to-Head

Bigger by revenue
VST
VST
1.6× larger
VST
$4.8B
$3.0B
WDC
Growing faster (revenue YoY)
WDC
WDC
+0.3% gap
WDC
31.5%
31.2%
VST
Higher net margin
WDC
WDC
56.2% more per $
WDC
61.1%
4.8%
VST
Faster 2-yr revenue CAGR
VST
VST
Annualised
VST
23.3%
-6.6%
WDC

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
VST
VST
WDC
WDC
Revenue
$4.8B
$3.0B
Net Profit
$233.0M
$1.8B
Gross Margin
45.7%
Operating Margin
9.9%
30.1%
Net Margin
4.8%
61.1%
Revenue YoY
31.2%
31.5%
Net Profit YoY
-47.2%
254.2%
EPS (diluted)
$0.55
$4.73

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
VST
VST
WDC
WDC
Q1 26
$3.0B
Q4 25
$4.8B
$2.8B
Q3 25
$4.8B
Q2 25
$3.8B
$-1.2B
Q1 25
$4.3B
$2.3B
Q4 24
$3.7B
$4.3B
Q3 24
$4.3B
$4.1B
Q2 24
$3.6B
$3.8B
Net Profit
VST
VST
WDC
WDC
Q1 26
$1.8B
Q4 25
$233.0M
$1.2B
Q3 25
$652.0M
Q2 25
$327.0M
$282.0M
Q1 25
$-268.0M
$520.0M
Q4 24
$441.0M
$594.0M
Q3 24
$1.9B
$493.0M
Q2 24
$365.0M
$39.0M
Gross Margin
VST
VST
WDC
WDC
Q1 26
45.7%
Q4 25
43.5%
Q3 25
Q2 25
Q1 25
39.8%
Q4 24
35.4%
Q3 24
37.9%
Q2 24
35.9%
Operating Margin
VST
VST
WDC
WDC
Q1 26
30.1%
Q4 25
9.9%
28.1%
Q3 25
21.7%
Q2 25
13.7%
Q1 25
-2.8%
33.1%
Q4 24
16.4%
19.9%
Q3 24
59.6%
18.1%
Q2 24
22.5%
5.7%
Net Margin
VST
VST
WDC
WDC
Q1 26
61.1%
Q4 25
4.8%
41.9%
Q3 25
13.6%
Q2 25
8.7%
-24.4%
Q1 25
-6.3%
22.7%
Q4 24
12.0%
13.9%
Q3 24
43.5%
12.0%
Q2 24
10.1%
1.0%
EPS (diluted)
VST
VST
WDC
WDC
Q1 26
$4.73
Q4 25
$0.55
$3.07
Q3 25
$1.75
Q2 25
$0.81
$0.72
Q1 25
$-0.93
$1.42
Q4 24
$1.09
$1.63
Q3 24
$5.25
$1.35
Q2 24
$0.90
$0.15

Balance Sheet & Financial Strength

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

Metric
VST
VST
WDC
WDC
Cash + ST InvestmentsLiquidity on hand
$785.0M
$2.0B
Total DebtLower is stronger
$15.8B
$4.7B
Stockholders' EquityBook value
$5.1B
$7.1B
Total Assets
$41.5B
$15.6B
Debt / EquityLower = less leverage
3.11×
0.65×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
VST
VST
WDC
WDC
Q1 26
$2.0B
Q4 25
$785.0M
$2.0B
Q3 25
$602.0M
Q2 25
$458.0M
$2.1B
Q1 25
$561.0M
$3.5B
Q4 24
$1.2B
$2.3B
Q3 24
$905.0M
$1.7B
Q2 24
$1.6B
$1.9B
Total Debt
VST
VST
WDC
WDC
Q1 26
$4.7B
Q4 25
$15.8B
$4.7B
Q3 25
$15.8B
Q2 25
$15.5B
$4.7B
Q1 25
$15.4B
$7.3B
Q4 24
$15.4B
$7.4B
Q3 24
$13.9B
$7.4B
Q2 24
$13.9B
$7.4B
Stockholders' Equity
VST
VST
WDC
WDC
Q1 26
$7.1B
Q4 25
$5.1B
$5.9B
Q3 25
$5.2B
Q2 25
$4.8B
$5.3B
Q1 25
$4.8B
$5.2B
Q4 24
$5.6B
$12.1B
Q3 24
$5.4B
$11.6B
Q2 24
$5.6B
$10.8B
Total Assets
VST
VST
WDC
WDC
Q1 26
$15.6B
Q4 25
$41.5B
$14.4B
Q3 25
$38.0B
Q2 25
$38.1B
$14.0B
Q1 25
$38.2B
$16.4B
Q4 24
$37.8B
$25.5B
Q3 24
$37.9B
$24.8B
Q2 24
$39.1B
$24.2B
Debt / Equity
VST
VST
WDC
WDC
Q1 26
0.65×
Q4 25
3.11×
0.80×
Q3 25
3.02×
Q2 25
3.22×
0.89×
Q1 25
3.20×
1.42×
Q4 24
2.77×
0.61×
Q3 24
2.56×
0.64×
Q2 24
2.49×
0.69×

Cash Flow & Capital Efficiency

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

Metric
VST
VST
WDC
WDC
Operating Cash FlowLast quarter
$1.4B
Free Cash FlowOCF − Capex
$596.0M
FCF MarginFCF / Revenue
12.4%
Capex IntensityCapex / Revenue
17.4%
Cash ConversionOCF / Net Profit
6.15×
TTM Free Cash FlowTrailing 4 quarters
$1.3B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
VST
VST
WDC
WDC
Q1 26
Q4 25
$1.4B
$672.0M
Q3 25
$1.5B
Q2 25
$572.0M
$746.0M
Q1 25
$599.0M
$508.0M
Q4 24
$1.4B
$403.0M
Q3 24
$1.7B
$34.0M
Q2 24
$1.2B
$366.0M
Free Cash Flow
VST
VST
WDC
WDC
Q1 26
Q4 25
$596.0M
$599.0M
Q3 25
$1.0B
Q2 25
$-118.0M
$675.0M
Q1 25
$-169.0M
$379.0M
Q4 24
$923.0M
$287.0M
Q3 24
$1.0B
$-62.0M
Q2 24
$698.0M
$250.0M
FCF Margin
VST
VST
WDC
WDC
Q1 26
Q4 25
12.4%
21.3%
Q3 25
21.1%
Q2 25
-3.1%
-58.5%
Q1 25
-4.0%
16.5%
Q4 24
25.2%
6.7%
Q3 24
23.4%
-1.5%
Q2 24
19.4%
6.6%
Capex Intensity
VST
VST
WDC
WDC
Q1 26
Q4 25
17.4%
2.6%
Q3 25
9.6%
Q2 25
18.4%
-6.2%
Q1 25
18.1%
5.6%
Q4 24
11.7%
2.7%
Q3 24
15.8%
2.3%
Q2 24
13.8%
3.1%
Cash Conversion
VST
VST
WDC
WDC
Q1 26
Q4 25
6.15×
0.57×
Q3 25
2.25×
Q2 25
1.75×
2.65×
Q1 25
0.98×
Q4 24
3.07×
0.68×
Q3 24
0.90×
0.07×
Q2 24
3.28×
9.38×

Financial Flow Comparison

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

Revenue Breakdown by Segment

VST
VST

Retail Energy Charge In ERCOT$2.1B43%
Retail Energy Charge In Northeast Midwest$1.2B24%
East Segment$1.1B24%
Hedging Revenue Realized$170.0M4%
Revenue From Other Wholesale Contracts$116.0M2%
Transferable Production Tax Credit Revenues$78.0M2%
West Segment$77.0M2%
Intersegment Sales$25.0M1%

WDC
WDC

Cloud$2.7B89%
Client Devices$176.0M6%
Consumer$168.0M6%

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