Sunrise Communications AG

SUNN.SW

Telecommunications Services · Communication Services

Price

CHF 42.20

+0.16 (+0.38%)

Market Cap

CHF 3.07B

Exchange

SIX Swiss Exchange

Winston Score

Winston is worried

Below-average fundamentals — multiple weak pillars.

Data as of Aug 23, 2026 · filings through Jun 30, 2026

How the score breaks down

Quality

Weak

Growth

Mixed

Cash Flow

Mixed

Stability

Weak

Valuation

Data not available

Dividends

Good

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Share count falling — buybacks

−25.6% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 96.8M (2021) → 72.1M (2025)

Winston Score History

The full picture

Sunrise Communications AG is a Swiss telecommunications company that provides mobile phone service, home internet, and TV packages to everyday consumers and businesses across Switzerland. It is the second-largest telecom operator in the country, competing mainly against Swisscom, which dominates the market. Sunrise also sells its services under the UPC brand after acquiring that cable business in 2021.

The company earns money through monthly subscription fees from its mobile, broadband, and TV customers. It operates entirely within Switzerland, which is a small but wealthy market with high smartphone and internet usage. Sunrise's main competitive advantage is its cable and fiber network infrastructure, which is expensive for rivals to replicate. However, the company carries significant debt from past acquisitions, and its low operating margin of around 3% leaves little room for error — meaning rising costs or pricing pressure from Swisscom could quickly squeeze profits.

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

-2.6% YoY

YoY Growth Rate

Revenue declining

EPS Growth

+60.0% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

CHF 0/ year

0.0% of revenue

Below sector average (12%)

Research and development spending

Insider Activity

10.8%ownership

→ Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

CHF 167M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

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

Revenue declining

Sunrise Communications AG's revenue is actually shrinking. In a growth stock, that removes the core investment thesis. The low Winston Score here may be warranted — unless there's a turnaround story.

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.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale

Gross Margin

23.6%

Thin — 23.6% gross margin

Profit after running costs

Operating Margin

2.0%

Thin — 2.0% operating margin

Return on the money invested

ROCE

1.0%

Weak — 1.0% 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 growth

Sales YoY

-0.7%

Shrinking sales (-0.7% YoY)

Profit growth

EPS YoY

N/A

—

Data not available

How steady the profit is

EPS Consistency

4/6 quarters

Mixed — about half the quarters showed growth

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Cash Flow

Profit that turns into cash

Cash Conversion

N/A

—

Data not available

Spare cash per sale

FCF Margin

17.9%

Converts sales into free cash efficiently (17.9%)

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

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Stability

What it owes vs what it owns

Debt / Equity

1.23

Elevated debt (1.23)

Covers its interest

Interest Cover

0.29x

Dangerous — barely covers interest (0.3x)

Interest coverage below 1. Their profits don't cover the interest bill.

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Valuation

Price vs profit

P/E Ratio (TTM)

N/M

—

Negative earnings — P/E not meaningful

Cheaper or dearer next year

P/E vs Forward

N/A

not available

Data not available

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Dividends

Dividend

Dividend Yield

8.09%

Healthy income — 8.09% yield

Yield above 6% — often a flag the market is pricing in a cut.

Dividend record

Dividend Growth

N/A

Data not available

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