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Spark New Zealand Limited

SPK.NZ
39
Telecommunications Services · Communication Services
Exchange
New Zealand Exchange
Winston Score
39
Winston is serious
Below-average fundamentals — multiple weak pillars.
Data as of Aug 23, 2026 · filings through Dec 31, 2025
How the score breaks down
Quality
Mixed
Growth
Mixed
Cash Flow
Exceptional
Stability
Mixed
Valuation
Good
Dividends
Good

Winston Score History

The full picture

Spark New Zealand is the country's largest telecommunications company. It provides mobile phone plans, home broadband internet, and cloud and IT services to everyday consumers, small businesses, and large corporations across New Zealand. The company also owns the Spark Sport streaming platform and offers digital health and cybersecurity services.

Spark earns money by charging customers monthly fees for mobile and broadband subscriptions, and by selling IT and cloud services to business clients under longer-term contracts. It operates almost entirely within New Zealand, making it a domestically focused business with a large, established customer base and significant network infrastructure that is difficult for rivals to replicate. However, the company faces pressure from intense competition in mobile and broadband pricing, and its relatively low gross margin of around 18% leaves limited room for error. The key growth opportunity lies in expanding its cloud and IT services division, which tends to carry better margins than traditional telecom products.

Score breakdown

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Quality

Profit per sale
Gross Margin
13.9%
Thin — 13.9% gross margin
Profit after running costs
Operating Margin
6.3%
Modest — 6.3% operating margin
Return on the money invested
ROCE
10.4%
Below par — 10.4% return on capital

ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.

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Growth

Sales growth
Sales YoY
-5.9%
Shrinking sales (-5.9% YoY)
Profit growth
EPS YoY
+44.2%
Earnings growing fast (+44.2% YoY)

Earnings growing 25%+ a year. The compounder zone.

How steady the profit is
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash
Cash Conversion
346%
Turns 346% of profit into real cash
Spare cash per sale
FCF Margin
16.2%
Converts sales into free cash efficiently (16.2%)

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
1.71
Elevated debt (1.71)
Covers its interest
Interest Cover
2.68x
Tight — interest eats into profit (2.7x)

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

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Valuation

Price vs profit
P/E Ratio (TTM)
8.2x
no trend
Attractive valuation — P/E 8.2

P/E under 10. The price tag is small relative to last year's profit.

Cheaper or dearer next year
P/E vs Forward
-4.5
SLOWING
Earnings expected to fall — forward P/E higher than today

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Dividends

Dividend
Dividend Yield
10.76%
no trend
Healthy income — 10.76% yield

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

Dividend record
Dividend Growth
-13.8%
no trend
Dividend cut (-13.8% YoY) — warning sign

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