WallStSmart

Jabil Circuit Inc (JBL)vsWestern Digital Corporation (WDC)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Jabil Circuit Inc generates 177% more annual revenue ($32.67B vs $11.78B). WDC leads profitability with a 55.3% profit margin vs 2.5%. JBL appears more attractively valued with a PEG of 0.82. WDC earns a higher WallStSmart Score of 79/100 (B+).

JBL

Strong Buy

68

out of 100

Grade: B-

Growth: 6.7Profit: 6.0Value: 6.0Quality: 4.8
Piotroski: 3/9Altman Z: 2.35

WDC

Strong Buy

79

out of 100

Grade: B+

Growth: 7.3Profit: 9.5Value: 6.3Quality: 5.0
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

JBLUndervalued (+6.6%)

Margin of Safety

+6.6%

Fair Value

$279.57

Current Price

$337.29

$57.72 discount

UndervaluedFair: $279.57Overvalued

Intrinsic value data unavailable for WDC.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

JBL4 strengths · Avg: 9.0/10
Return on EquityProfitability
59.7%10/10

Every $100 of equity generates 60 in profit

EPS GrowthGrowth
96.2%10/10

Earnings expanding 96.2% YoY

PEG RatioValuation
0.828/10

Growing faster than its price suggests

Revenue GrowthGrowth
23.1%8/10

Revenue surging 23.1% year-over-year

WDC6 strengths · Avg: 9.8/10
Return on EquityProfitability
85.9%10/10

Every $100 of equity generates 86 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
477.2%10/10

Earnings expanding 477.2% YoY

Market CapQuality
$152.47B9/10

Large-cap with strong market position

Areas to Watch

JBL4 concerns · Avg: 2.8/10
Profit MarginProfitability
2.5%3/10

2.5% margin — thin

Operating MarginProfitability
4.7%3/10

Operating margin of 4.7%

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

P/E RatioValuation
46.1x2/10

Premium valuation, high expectations priced in

WDC2 concerns · Avg: 3.0/10
P/E RatioValuation
25.8x4/10

Moderate valuation

Price/BookValuation
21.2x2/10

Trading at 21.2x book value

Comparative Analysis Report

WallStSmart Research

Bull Case : JBL

The strongest argument for JBL centers on Return on Equity, EPS Growth, PEG Ratio. Revenue growth of 23.1% demonstrates continued momentum. PEG of 0.82 suggests the stock is reasonably priced for its growth.

Bull Case : WDC

The strongest argument for WDC centers on Return on Equity, Profit Margin, Operating 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 : JBL

The primary concerns for JBL are Profit Margin, Operating Margin, Piotroski F-Score. A P/E of 46.1x leaves little room for execution misses. Thin 2.5% margins leave little buffer for downturns.

Bear Case : WDC

The primary concerns for WDC are P/E Ratio, Price/Book.

Key Dynamics to Monitor

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.

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

Monitor ELECTRONIC COMPONENTS industry trends, competitive dynamics, and regulatory changes.

Bottom Line

WDC scores higher overall (79/100 vs 68/100), backed by strong 55.3% margins and 45.5% revenue growth. Both earn "Strong 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.

Jabil Circuit Inc

TECHNOLOGY · ELECTRONIC COMPONENTS · USA

Jabil Inc. provides global manufacturing solutions and services. The company is headquartered in Saint Petersburg, Florida.

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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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