Longduoduo Company Limited (LDDD) Stock Analysis & Winston Score

Longduoduo Company Limited is a small Chinese healthcare company focused on medical diagnostics and research services. It provides testing and research-related services, primarily serving customers in China's healthcare system, which may include hospitals, clinics, and research institutions. The company operates in a sector that supports disease detection and medical investigation.

Longduoduo generates revenue from its diagnostics and research services, and its very high gross margin of roughly 99% suggests the business is largely service-based with low direct costs. However, the company is currently losing money at the operating level, and its deeply negative return on invested capital signals that it is spending significantly more than it earns. The main risk facing Longduoduo is its ability to reach profitability — with a market cap near zero and heavy losses relative to its size, the company faces serious questions about whether it can sustain operations and grow revenue fast enough to cover its costs.

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

-75.9% YoY

YoY Growth Rate

Revenue declining

EPS Growth

-52.8% YoY

YoY Growth Rate

Earnings declining

Insider Activity

67.7%ownership

→ Flat

Insiders holding steady — not selling despite ability to

Cash Runway

~11 months

$1M cash & investments

Quarterly Free Cash Flow

→ Burn rate stable

Short runway — potential dilution ahead through share issuance

Cash watch

Longduoduo Company Limited has less than a year of cash at its current burn rate. Growth investors should watch for potential share dilution from future fundraising — that directly reduces your ownership.

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

Gross Margin

98.2%

Premium pricing power — 98.2% gross margin

Operating Margin

-105.4%

Losing money on operations — -105.4%

ROCE

-26.8%

Weak — -26.8% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales YoY

-61.8%

Shrinking sales (-61.8% YoY)

EPS YoY

-130.4%

Earnings shrinking (-130.4% YoY)

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

EPS Consistency

0/8 quarters

Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion

N/A

Data not available

FCF Margin

-5.5%

Burning cash (-5.5%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

Debt / Equity

N/A

Data not available

Interest Cover

N/A

—

Data not available

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Valuation

P/E Ratio (TTM)

N/M

no trend

Negative earnings — P/E not meaningful

P/E vs Forward

N/A

not available

Data not available

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Dividends

Not applicable for this business.

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