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Spark New Zealand Limited

SPKKY
40
Telecommunications Services · Communication Services
Exchange
Other OTC
Winston Score
40
Winston is serious
Mixed quality — meaningful strengths and weaknesses.
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
Strong
Dividends
Good

Winston Score History

The full picture

Spark New Zealand is the largest telecommunications company in New Zealand. It provides mobile phone service, home broadband internet, and cloud computing services to everyday consumers, small businesses, and large corporations across the country. Spark also owns a growing digital health and data center business, making it more than just a traditional phone company.

Spark earns money through monthly subscriptions for mobile and broadband plans, as well as fees from businesses that use its cloud and IT services. It operates almost entirely within New Zealand, which limits its geographic reach but also means it faces less international competition. The company holds a strong position as the market leader in mobile, but it faces steady competition from Vodafone New Zealand and One New Zealand. The key growth driver is expanding its cloud and data center business, while the main risk is ongoing pressure on traditional telecom margins as customers demand more data for lower prices.

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
10.5%
Below par — 10.5% 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
+43.9%
Earnings growing fast (+43.9% 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
348%
Turns 348% 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
2.67x
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)
14.0x
no trend
Attractive valuation — P/E 14.0

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year
P/E vs Forward
+1.8
GROWING
Earnings expected to grow — slightly cheaper on forward P/E

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Dividends

Dividend
Dividend Yield
10.66%
no trend
Healthy income — 10.66% yield

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

Dividend record
Dividend Growth
-17.1%
no trend
Dividend cut (-17.1% YoY) — warning sign

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