iRhythm Technologies

IRTC

Medical - Devices · Healthcare

Price

$110.88

-4.47 (-3.88%)

Market Cap

$3.64B

Exchange

NASDAQ

Winston Score

Winston is worried

Below-average fundamentals — multiple weak pillars.

Share count rising — dilution

+9.1% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 29.3M (2021) → 32.0M (2025)

iRhythm Technologies, Inc., a digital healthcare company, provides ambulatory electrocardiogram (ECG) monitoring products for patients at risk for arrhythmias in the United States. It offers Zio service, an ambulatory cardiac monitoring solution that combines a wire-free, patch-based, and wearable biosensor with a cloud-based data analytic platform to help physicians to monitor patients and diagnose arrhythmias. The company's Zio XT and AT monitors, a single-use, wire-free, and wearable patch-ba

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

+25.7% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+55.7% YoY

YoY Growth Rate

Strong earnings growth

R&D Spend

$85M/ year

↓ Declining (-19% vs prior year)

11.3% of revenue

Below sector average (18%)

R&D spend declining — could signal cost-cutting or efficiency

Insider Activity

6.3%ownership

→ Flat

Insiders holding steady — not selling despite ability to

Cash Runway

~22 months

$240M cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Adequate runway but may need to raise capital within 2 years

Revenue accelerating

iRhythm Technologies grew revenue 26% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

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

70.9%

Premium pricing power — 70.9% gross margin

Operating Margin

-5.9%

Losing money on operations — -5.9%

ROCE

-1.3%

Weak — -1.3% return on capital

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

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Growth

Sales YoY

+27.4%

Fast-growing sales (27.4% YoY)

EPS YoY

N/A

—

Data not available

EPS Consistency

2/8 quarters

Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion

N/A

Data not available

FCF Margin

2.4%

Thin free cash flow (2.4%)

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

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Stability

Debt / Equity

4.52

Heavy debt load (4.52)

Interest Cover

N/A

Data not available

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Valuation

P/E Ratio (TTM)

N/M

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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