Littelfuse (LFUS) Stock Analysis & Winston Score

Littelfuse, Inc. manufactures and sells circuit protection, power control, and sensing products in the Asia-Pacific, the Americas, and Europe. The company's Electronics segment offers fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, varistors, reed switch based magnetic sensing products, and gas discharge tubes; and discrete transient voltage suppressor (TVS) diodes, TVS diode arrays, protection and switching thyristors,

Winston Score History

Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+18.5% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

+70.5% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$107M/ year

→ Flat (-1% vs prior year)

4.5% of revenue

Below sector average (15%)

Steady R&D investment year-over-year

Insider Activity

1.4%ownership

→ Flat

Insiders holding steady — not selling despite ability to

Cash Position

Cash flow positive

$482M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Company generates more cash than it spends — no dilution risk from fundraising

Growth + cash flow

Littelfuse is a rare growth stock that's already generating positive cash flow while growing at 19%. The Winston Score doesn't fully credit this transition from "burner" to "earner."

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Share count broadly stable

−0.1% over 4y

The share count has stayed roughly flat over this period — little dilution or buyback activity.

Diluted shares outstanding: 24.9M (2021) → 24.9M (2025)

Score breakdown

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Quality

Gross Margin

38.7%

Modest — 38.7% gross margin

Operating Margin

15.4%

Healthy — 15.4% operating margin

ROCE

3.8%

Weak — 3.8% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales YoY

+12.6%

Fast-growing sales (12.6% YoY)

EPS YoY

-136.7%

Earnings shrinking (-136.7% YoY)

Earnings per share down more than 10%. Either a bad year, or a real decline.

EPS Consistency

6/8 quarters

Earnings grew in most of the last 8 quarters

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Cash Flow

Cash Conversion

N/A

Data not available

FCF Margin

15.6%

Converts sales into free cash efficiently (15.6%)

FCF margin between 10% and 20%. Every $100 in sales becomes $10 to $20 in real cash.

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Stability

Debt / Equity

0.07

Conservative — low debt load (0.07)

Interest Cover

2.12x

Tight — interest eats into profit (2.1x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

P/E Ratio (TTM)

N/M

Negative earnings — P/E not meaningful

P/E vs Forward

N/A

not available

Data not available

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Dividends

Dividend Yield

0.72%

Small dividend — 0.72% yield

Modest yield. The bulk of any return needs to come from price appreciation.

Dividend Growth

+7.1%

Dividend growing modestly (7.1% YoY)

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