WallStSmart

Vistra Corp. (VST)vsWestern Digital Corporation (WDC)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Vistra Corp. generates 65% more annual revenue ($19.45B vs $11.78B). WDC leads profitability with a 55.3% profit margin vs 11.5%. VST appears more attractively valued with a PEG of 0.46. WDC earns a higher WallStSmart Score of 80/100 (A-).

VST

Strong Buy

68

out of 100

Grade: B-

Growth: 4.7Profit: 8.0Value: 7.0Quality: 2.5
Piotroski: 2/9Altman Z: 0.60

WDC

Exceptional Buy

80

out of 100

Grade: A-

Growth: 7.3Profit: 9.5Value: 5.7Quality: 6.5
Piotroski: 5/9Altman Z: 1.51

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

VST5 strengths · Avg: 9.4/10
PEG RatioValuation
0.4610/10

Growing faster than its price suggests

Return on EquityProfitability
40.0%10/10

Every $100 of equity generates 40 in profit

Revenue GrowthGrowth
43.4%10/10

Revenue surging 43.4% year-over-year

Market CapQuality
$53.10B9/10

Large-cap with strong market position

Operating MarginProfitability
26.6%8/10

Strong operational efficiency at 26.6%

WDC6 strengths · Avg: 10.0/10
Market CapQuality
$225.26B10/10

Mega-cap, among the largest globally

Return on EquityProfitability
67.0%10/10

Every $100 of equity generates 67 in profit

Profit MarginProfitability
55.3%10/10

Keeps 55 of every $100 in revenue as profit

Operating MarginProfitability
37.0%10/10

Strong operational efficiency at 37.0%

Revenue GrowthGrowth
45.5%10/10

Revenue surging 45.5% year-over-year

EPS GrowthGrowth
482.9%10/10

Earnings expanding 482.9% YoY

Areas to Watch

VST4 concerns · Avg: 3.3/10
P/E RatioValuation
26.3x4/10

Moderate valuation

Price/BookValuation
19.8x4/10

Trading at 19.8x book value

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

EPS GrowthGrowth
-52.3%2/10

Earnings declined 52.3%

WDC3 concerns · Avg: 3.3/10
P/E RatioValuation
39.1x4/10

Premium valuation, high expectations priced in

Altman Z-ScoreHealth
1.514/10

Distress zone — elevated risk

Price/BookValuation
27.5x2/10

Trading at 27.5x book value

Comparative Analysis Report

WallStSmart Research

Bull Case : VST

The strongest argument for VST centers on PEG Ratio, Return on Equity, Revenue Growth. Revenue growth of 43.4% demonstrates continued momentum. PEG of 0.46 suggests the stock is reasonably priced for its growth.

Bull Case : WDC

The strongest argument for WDC centers on Market Cap, Return on Equity, Profit Margin. Profitability is solid with margins at 55.3% and operating margin at 37.0%. Revenue growth of 45.5% demonstrates continued momentum.

Bear Case : VST

The primary concerns for VST are P/E Ratio, Price/Book, Piotroski F-Score. Debt-to-equity of 3.56 is elevated, increasing financial risk.

Bear Case : WDC

The primary concerns for WDC are P/E Ratio, Altman Z-Score, Price/Book.

Key Dynamics to Monitor

WDC carries more volatility with a beta of 2.20 — expect wider price swings.

WDC is growing revenue faster at 45.5% — sustainability is the question.

WDC generates stronger free cash flow (978M), providing more financial flexibility.

Monitor UTILITIES - INDEPENDENT POWER PRODUCERS industry trends, competitive dynamics, and regulatory changes.

Bottom Line

WDC scores higher overall (80/100 vs 68/100), backed by strong 55.3% margins and 45.5% revenue growth. Both earn "Exceptional Buy" and "Strong Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Vistra Corp.

UTILITIES · UTILITIES - INDEPENDENT POWER PRODUCERS · USA

Vistra Corp. The company is headquartered in Irving, Texas.

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Western Digital Corporation

TECHNOLOGY · COMPUTER HARDWARE · USA

Western Digital Corporation (WDC, commonly known as Western Digital or WD) is an American computer hard disk drive manufacturer and data storage company, headquartered in San Jose, California. It designs, manufactures and sells data technology products, including storage devices, data center systems and cloud storage services.

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