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

Heartflow, Inc. is the larger business by last-quarter revenue ($46.3M vs $33.5M, roughly 1.4× NELNET INC). NELNET INC runs the higher net margin — 172.3% vs -109.9%, a 282.2% gap on every dollar of revenue. NELNET INC produced more free cash flow last quarter ($396.7M 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.

Nelnet, Inc. is a United States–based conglomerate that primarily focuses on financial services including student and consumer loan origination and servicing. Additionally, the company operates an investing arm, an internet bank and has a 26% stake in Allo Fiber, a cable and internet provider. The company is headquartered in Lincoln, Nebraska.

HTFL vs NNI — Head-to-Head

Bigger by revenue
HTFL
HTFL
1.4× larger
HTFL
$46.3M
$33.5M
NNI
Higher net margin
NNI
NNI
282.2% more per $
NNI
172.3%
-109.9%
HTFL
More free cash flow
NNI
NNI
$400.9M more FCF
NNI
$396.7M
$-4.2M
HTFL

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
HTFL
HTFL
NNI
NNI
Revenue
$46.3M
$33.5M
Net Profit
$-50.9M
$57.8M
Gross Margin
76.5%
50.5%
Operating Margin
-32.6%
Net Margin
-109.9%
172.3%
Revenue YoY
79.6%
Net Profit YoY
-8.5%
EPS (diluted)
$-1.04
$1.62

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
NNI
NNI
Q4 25
$33.5M
Q3 25
$46.3M
$23.2M
Q2 25
$43.4M
$26.1M
Q1 25
$24.7M
Q4 24
$18.7M
Q3 24
$16.6M
Q2 24
$14.9M
Q1 24
$12.8M
Net Profit
HTFL
HTFL
NNI
NNI
Q4 25
$57.8M
Q3 25
$-50.9M
$106.7M
Q2 25
$-9.2M
$181.5M
Q1 25
$82.6M
Q4 24
$63.2M
Q3 24
$2.4M
Q2 24
$45.1M
Q1 24
$73.4M
Gross Margin
HTFL
HTFL
NNI
NNI
Q4 25
50.5%
Q3 25
76.5%
29.6%
Q2 25
75.5%
29.8%
Q1 25
30.5%
Q4 24
13.7%
Q3 24
0.1%
Q2 24
27.3%
Q1 24
15.3%
Operating Margin
HTFL
HTFL
NNI
NNI
Q4 25
Q3 25
-32.6%
Q2 25
-31.6%
Q1 25
Q4 24
97.7%
Q3 24
-13.4%
Q2 24
88.0%
Q1 24
Net Margin
HTFL
HTFL
NNI
NNI
Q4 25
172.3%
Q3 25
-109.9%
460.5%
Q2 25
-21.2%
694.9%
Q1 25
334.4%
Q4 24
338.2%
Q3 24
14.4%
Q2 24
303.6%
Q1 24
574.4%
EPS (diluted)
HTFL
HTFL
NNI
NNI
Q4 25
$1.62
Q3 25
$-1.04
$2.94
Q2 25
$-1.46
$4.97
Q1 25
$2.26
Q4 24
$1.74
Q3 24
$0.07
Q2 24
$1.23
Q1 24
$1.98

Balance Sheet & Financial Strength

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

Metric
HTFL
HTFL
NNI
NNI
Cash + ST InvestmentsLiquidity on hand
$291.2M
$296.0M
Total DebtLower is stronger
$7.8B
Stockholders' EquityBook value
$254.6M
$3.7B
Total Assets
$364.4M
$14.1B
Debt / EquityLower = less leverage
2.11×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
HTFL
HTFL
NNI
NNI
Q4 25
$296.0M
Q3 25
$291.2M
$216.4M
Q2 25
$80.2M
$225.8M
Q1 25
$220.5M
Q4 24
$194.5M
Q3 24
$219.7M
Q2 24
$145.5M
Q1 24
$179.7M
Total Debt
HTFL
HTFL
NNI
NNI
Q4 25
$7.8B
Q3 25
$7.8B
Q2 25
$7.9B
Q1 25
$8.7B
Q4 24
$8.3B
Q3 24
$8.9B
Q2 24
$9.6B
Q1 24
$10.6B
Stockholders' Equity
HTFL
HTFL
NNI
NNI
Q4 25
$3.7B
Q3 25
$254.6M
$3.7B
Q2 25
$-894.8M
$3.6B
Q1 25
$3.4B
Q4 24
$3.3B
Q3 24
$3.3B
Q2 24
$3.3B
Q1 24
$3.3B
Total Assets
HTFL
HTFL
NNI
NNI
Q4 25
$14.1B
Q3 25
$364.4M
$13.9B
Q2 25
$159.4M
$13.7B
Q1 25
$14.2B
Q4 24
$13.8B
Q3 24
$14.1B
Q2 24
$14.5B
Q1 24
$15.4B
Debt / Equity
HTFL
HTFL
NNI
NNI
Q4 25
2.11×
Q3 25
2.14×
Q2 25
2.21×
Q1 25
2.53×
Q4 24
2.48×
Q3 24
2.72×
Q2 24
2.90×
Q1 24
3.20×

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
NNI
NNI
Operating Cash FlowLast quarter
$-3.0M
$423.0M
Free Cash FlowOCF − Capex
$-4.2M
$396.7M
FCF MarginFCF / Revenue
-9.1%
1183.0%
Capex IntensityCapex / Revenue
2.7%
78.2%
Cash ConversionOCF / Net Profit
7.32×
TTM Free Cash FlowTrailing 4 quarters
$663.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
HTFL
HTFL
NNI
NNI
Q4 25
$423.0M
Q3 25
$-3.0M
$112.4M
Q2 25
$-40.5M
$81.8M
Q1 25
$91.2M
Q4 24
$662.9M
Q3 24
$137.0M
Q2 24
$133.8M
Q1 24
$211.6M
Free Cash Flow
HTFL
HTFL
NNI
NNI
Q4 25
$396.7M
Q3 25
$-4.2M
$100.8M
Q2 25
$-42.4M
$78.1M
Q1 25
$87.8M
Q4 24
$642.0M
Q3 24
$132.6M
Q2 24
$123.1M
Q1 24
$188.3M
FCF Margin
HTFL
HTFL
NNI
NNI
Q4 25
1183.0%
Q3 25
-9.1%
435.0%
Q2 25
-97.6%
299.0%
Q1 25
355.6%
Q4 24
3438.0%
Q3 24
797.9%
Q2 24
829.2%
Q1 24
1473.7%
Capex Intensity
HTFL
HTFL
NNI
NNI
Q4 25
78.2%
Q3 25
2.7%
50.4%
Q2 25
4.4%
14.2%
Q1 25
13.7%
Q4 24
111.9%
Q3 24
26.7%
Q2 24
71.5%
Q1 24
181.7%
Cash Conversion
HTFL
HTFL
NNI
NNI
Q4 25
7.32×
Q3 25
1.05×
Q2 25
0.45×
Q1 25
1.10×
Q4 24
10.50×
Q3 24
57.39×
Q2 24
2.97×
Q1 24
2.88×

Financial Flow Comparison

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

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