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Side-by-side financial comparison of Heartflow, Inc. (HTFL) and ULTRALIFE CORP (ULBI). Click either name above to swap in a different company.

ULTRALIFE CORP is the larger business by last-quarter revenue ($48.5M vs $46.3M, roughly 1.0× Heartflow, Inc.). ULTRALIFE CORP runs the higher net margin — -15.3% vs -109.9%, a 94.6% gap on every dollar of revenue. ULTRALIFE CORP produced more free cash flow last quarter ($607.0K vs $-4.2M).

HeartFlow, Inc. develops non-invasive cardiovascular diagnostic solutions for global healthcare providers. Its core product uses CT scan data to build 3D coronary artery models, assess blood flow to detect blockages, and support clinicians in making personalized heart disease treatment decisions without invasive procedures.

Ultralife Corporation designs and manufactures batteries and communications systems worldwide. Ultralife serves government and defense, medical, safety and security, energy, robotics and other customers across the globe through the design and development of a range of products. Founded in 1991 when launched as an Initial Public Offering (IPO) evolving from Kodak’s Ultra Technologies battery division, and headquartered in Newark, New York, the Company’s business segments include battery and en...

HTFL vs ULBI — Head-to-Head

Bigger by revenue
ULBI
ULBI
1.0× larger
ULBI
$48.5M
$46.3M
HTFL
Higher net margin
ULBI
ULBI
94.6% more per $
ULBI
-15.3%
-109.9%
HTFL
More free cash flow
ULBI
ULBI
$4.8M more FCF
ULBI
$607.0K
$-4.2M
HTFL

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
HTFL
HTFL
ULBI
ULBI
Revenue
$46.3M
$48.5M
Net Profit
$-50.9M
$-7.4M
Gross Margin
76.5%
24.9%
Operating Margin
-32.6%
-21.9%
Net Margin
-109.9%
-15.3%
Revenue YoY
10.6%
Net Profit YoY
-3925.8%
EPS (diluted)
$-1.04
$-35.00

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
HTFL
HTFL
ULBI
ULBI
Q4 25
$48.5M
Q3 25
$46.3M
$43.4M
Q2 25
$43.4M
$48.6M
Q1 25
$50.7M
Q4 24
$43.9M
Q3 24
$35.7M
Q2 24
$43.0M
Q1 24
$41.9M
Net Profit
HTFL
HTFL
ULBI
ULBI
Q4 25
$-7.4M
Q3 25
$-50.9M
$-1.2M
Q2 25
$-9.2M
$879.0K
Q1 25
$1.9M
Q4 24
$194.0K
Q3 24
$258.0K
Q2 24
$3.0M
Q1 24
$2.9M
Gross Margin
HTFL
HTFL
ULBI
ULBI
Q4 25
24.9%
Q3 25
76.5%
22.2%
Q2 25
75.5%
23.9%
Q1 25
25.1%
Q4 24
24.2%
Q3 24
24.3%
Q2 24
26.9%
Q1 24
27.4%
Operating Margin
HTFL
HTFL
ULBI
ULBI
Q4 25
-21.9%
Q3 25
-32.6%
-2.2%
Q2 25
-31.6%
4.6%
Q1 25
6.7%
Q4 24
3.4%
Q3 24
1.4%
Q2 24
9.1%
Q1 24
9.7%
Net Margin
HTFL
HTFL
ULBI
ULBI
Q4 25
-15.3%
Q3 25
-109.9%
-2.8%
Q2 25
-21.2%
1.8%
Q1 25
3.7%
Q4 24
0.4%
Q3 24
0.7%
Q2 24
6.9%
Q1 24
6.9%
EPS (diluted)
HTFL
HTFL
ULBI
ULBI
Q4 25
$-35.00
Q3 25
$-1.04
$-0.07
Q2 25
$-1.46
$0.05
Q1 25
$0.02
Q4 24
$37.72
Q3 24
$0.02
Q2 24
$0.18
Q1 24
$0.08

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
HTFL
HTFL
ULBI
ULBI
Cash + ST InvestmentsLiquidity on hand
$291.2M
$9.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$254.6M
$130.0M
Total Assets
$364.4M
$216.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
HTFL
HTFL
ULBI
ULBI
Q4 25
$9.3M
Q3 25
$291.2M
Q2 25
$80.2M
Q1 25
Q4 24
$6.9M
Q3 24
$6.8M
Q2 24
$6.7M
Q1 24
$10.1M
Total Debt
HTFL
HTFL
ULBI
ULBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$55.0M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
HTFL
HTFL
ULBI
ULBI
Q4 25
$130.0M
Q3 25
$254.6M
$137.3M
Q2 25
$-894.8M
$138.4M
Q1 25
$136.4M
Q4 24
$134.0M
Q3 24
$134.5M
Q2 24
$133.2M
Q1 24
$128.8M
Total Assets
HTFL
HTFL
ULBI
ULBI
Q4 25
$216.9M
Q3 25
$364.4M
$222.2M
Q2 25
$159.4M
$221.0M
Q1 25
$223.8M
Q4 24
$220.5M
Q3 24
$172.4M
Q2 24
$169.8M
Q1 24
$180.6M
Debt / Equity
HTFL
HTFL
ULBI
ULBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.41×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
HTFL
HTFL
ULBI
ULBI
Operating Cash FlowLast quarter
$-3.0M
$1.5M
Free Cash FlowOCF − Capex
$-4.2M
$607.0K
FCF MarginFCF / Revenue
-9.1%
1.3%
Capex IntensityCapex / Revenue
2.7%
1.8%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$7.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
HTFL
HTFL
ULBI
ULBI
Q4 25
$1.5M
Q3 25
$-3.0M
$198.0K
Q2 25
$-40.5M
$5.9M
Q1 25
$3.4M
Q4 24
$3.0M
Q3 24
$4.7M
Q2 24
$8.9M
Q1 24
$-81.0K
Free Cash Flow
HTFL
HTFL
ULBI
ULBI
Q4 25
$607.0K
Q3 25
$-4.2M
$-797.0K
Q2 25
$-42.4M
$4.8M
Q1 25
$2.5M
Q4 24
$2.4M
Q3 24
$4.2M
Q2 24
$8.6M
Q1 24
$-453.0K
FCF Margin
HTFL
HTFL
ULBI
ULBI
Q4 25
1.3%
Q3 25
-9.1%
-1.8%
Q2 25
-97.6%
10.0%
Q1 25
4.9%
Q4 24
5.6%
Q3 24
11.6%
Q2 24
19.9%
Q1 24
-1.1%
Capex Intensity
HTFL
HTFL
ULBI
ULBI
Q4 25
1.8%
Q3 25
2.7%
2.3%
Q2 25
4.4%
2.3%
Q1 25
1.8%
Q4 24
1.4%
Q3 24
1.7%
Q2 24
0.8%
Q1 24
0.9%
Cash Conversion
HTFL
HTFL
ULBI
ULBI
Q4 25
Q3 25
Q2 25
6.75×
Q1 25
1.81×
Q4 24
15.70×
Q3 24
18.40×
Q2 24
3.01×
Q1 24
-0.03×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

HTFL
HTFL

Segment breakdown not available.

ULBI
ULBI

Commercial$36.3M75%
Government Defense$9.6M20%
Communications Systems Segment$2.6M5%

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