WallStSmart

Petroleo Brasileiro Petrobras SA ADR (PBR)vsWestern Digital Corporation (WDC)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Petroleo Brasileiro Petrobras SA ADR generates 4129% more annual revenue ($498.09B vs $11.78B). WDC leads profitability with a 55.3% profit margin vs 21.6%. WDC appears more attractively valued with a PEG of 0.53. WDC earns a higher WallStSmart Score of 80/100 (A-).

PBR

Strong Buy

66

out of 100

Grade: B-

Growth: 2.7Profit: 8.5Value: 7.3Quality: 5.5
Piotroski: 4/9Altman Z: 2.08

WDC

Exceptional Buy

80

out of 100

Grade: A-

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

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

PBRUndervalued (+89.6%)

Margin of Safety

+89.6%

Fair Value

$176.60

Current Price

$17.75

$158.85 discount

UndervaluedFair: $176.60Overvalued

Intrinsic value data unavailable for WDC.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

PBR6 strengths · Avg: 9.5/10
P/E RatioValuation
5.8x10/10

Attractively priced relative to earnings

Price/BookValuation
1.4x10/10

Reasonable price relative to book value

Operating MarginProfitability
32.0%10/10

Strong operational efficiency at 32.0%

Market CapQuality
$117.55B9/10

Large-cap with strong market position

Return on EquityProfitability
23.9%9/10

Every $100 of equity generates 24 in profit

Profit MarginProfitability
21.6%9/10

Keeps 22 of every $100 in revenue as profit

WDC6 strengths · Avg: 10.0/10
Market CapQuality
$204.78B10/10

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

PBR3 concerns · Avg: 2.7/10
Revenue GrowthGrowth
0.4%4/10

0.4% revenue growth

PEG RatioValuation
4.572/10

Expensive relative to growth rate

EPS GrowthGrowth
-7.2%2/10

Earnings declined 7.2%

WDC3 concerns · Avg: 3.3/10
P/E RatioValuation
35.5x4/10

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 : PBR

The strongest argument for PBR centers on P/E Ratio, Price/Book, Operating Margin. Profitability is solid with margins at 21.6% and operating margin at 32.0%.

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 : PBR

The primary concerns for PBR are Revenue Growth, PEG Ratio, EPS Growth.

Bear Case : WDC

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

Key Dynamics to Monitor

PBR profiles as a value stock while WDC is a growth play — different risk/reward profiles.

WDC carries more volatility with a beta of 2.16 — expect wider price swings.

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

PBR generates stronger free cash flow (3.3B), providing more financial flexibility.

Bottom Line

WDC scores higher overall (80/100 vs 66/100), backed by strong 55.3% margins and 45.5% revenue growth. PBR offers better value entry with a 89.6% margin of safety. 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.

Petroleo Brasileiro Petrobras SA ADR

ENERGY · OIL & GAS INTEGRATED · USA

Petrleo Brasileiro SA - Petrobras produces and sells oil and gas in Brazil and internationally. The company is headquartered in Rio de Janeiro, Brazil.

Visit Website →

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.

Want to dig deeper into these stocks?