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Harmonic Drive Systems

HSYDF
41
Industrial - Machinery · Industrials
Exchange
Other OTC
Winston Score
41
Winston is serious
Mixed quality — meaningful strengths and weaknesses.
Data as of Aug 9, 2026 · filings through Mar 31, 2026

Harmonic Drive Systems Inc. is a Japanese company that makes a special type of precision gear called a "strain wave gear" or harmonic drive. These gears are extremely accurate and compact, making them essential components in industrial robots, semiconductor manufacturing equipment, and medical devices. The company is one of the world's leading producers of this niche gear technology, which requires very tight tolerances and specialized engineering.

The company earns revenue by selling its precision gears and actuators to manufacturers of robots and automation equipment, primarily in Japan, the United States, and Europe. Its main competitive advantage is its deep expertise in a technically difficult product that competitors have struggled to replicate at the same quality level. However, the business faces meaningful risk from cyclical downturns in the semiconductor and industrial automation industries, which can cause sharp swings in demand. Growth depends heavily on continued expansion of factory automation and robotics adoption globally.

Winston Score History

Growth Profile

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

Revenue Growth

+14.4% YoY

YoY Growth Rate

Steady revenue growth

EPS Growth

-77.9% YoY

YoY Growth Rate

Earnings declining

Insider Activity

39.7%ownership

Insiders own a meaningful stake in the company

Cash Position

Cash flow positive

$22.6B cash & investments

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

Growth + cash flow

Harmonic Drive Systems is a rare growth stock that's already generating positive cash flow while growing at 14%. 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.

Score breakdown

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Quality

Gross Margin
32.6%
Modest — 32.6% gross margin
Operating Margin
7.9%
Modest — 7.9% operating margin
ROCE
1.5%
Weak — 1.5% 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
+7.6%
Steady sales growth (+7.6% YoY)
EPS YoY
-53.2%
Earnings shrinking (-53.2% YoY)

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

EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Cash Conversion
0%
Weak — only 0% of profit becomes cash
FCF Margin
0.0%
Thin free cash flow (0.0%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

Debt / Equity
0.17
Conservative — low debt load (0.17)
Interest Cover
13.40x
Comfortably covers interest (13.4x)

Interest coverage above 8. Profits cover interest many times over.

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Valuation

P/E Ratio (TTM)
421.4x
no trend
Expensive — P/E 421.4

P/E over 35. The market is pricing in heavy, sustained growth.

P/E vs Forward
+421.1
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (421.4 → 0.3)

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Dividends

Dividend Yield
0.32%
no trend
Small dividend — 0.32% yield

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

Dividend Growth
-6.2%
no trend
Dividend cut (-6.2% YoY) — warning sign

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