vs

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

Smart Sand, Inc. is the larger business by last-quarter revenue ($86.0M vs $46.3M, roughly 1.9× Heartflow, Inc.). Smart Sand, Inc. runs the higher net margin — 1.4% vs -109.9%, a 111.3% gap on every dollar of revenue. Smart Sand, Inc. produced more free cash flow last quarter ($20.4M 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.

Sand 9 is a fabless Micro-electromechanical system (MEMS) company based in Cambridge, Massachusetts. Sand 9 developed a piezoelectric MEMS resonator to serve as an alternative for quartz timing devices in applications such as smart phones, low-power wireless devices, and communications infrastructure equipment.

HTFL vs SND — Head-to-Head

Bigger by revenue
SND
SND
1.9× larger
SND
$86.0M
$46.3M
HTFL
Higher net margin
SND
SND
111.3% more per $
SND
1.4%
-109.9%
HTFL
More free cash flow
SND
SND
$24.6M more FCF
SND
$20.4M
$-4.2M
HTFL

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
HTFL
HTFL
SND
SND
Revenue
$46.3M
$86.0M
Net Profit
$-50.9M
$1.2M
Gross Margin
76.5%
13.0%
Operating Margin
-32.6%
-3.1%
Net Margin
-109.9%
1.4%
Revenue YoY
-5.8%
Net Profit YoY
-68.5%
EPS (diluted)
$-1.04
$0.03

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
SND
SND
Q4 25
$86.0M
Q3 25
$46.3M
$92.8M
Q2 25
$43.4M
$85.8M
Q1 25
$65.6M
Q4 24
$91.4M
Q3 24
$63.2M
Q2 24
$73.8M
Q1 24
$83.1M
Net Profit
HTFL
HTFL
SND
SND
Q4 25
$1.2M
Q3 25
$-50.9M
$3.0M
Q2 25
$-9.2M
$21.4M
Q1 25
$-24.2M
Q4 24
$3.7M
Q3 24
$-98.0K
Q2 24
$-430.0K
Q1 24
$-216.0K
Gross Margin
HTFL
HTFL
SND
SND
Q4 25
13.0%
Q3 25
76.5%
16.1%
Q2 25
75.5%
10.4%
Q1 25
4.2%
Q4 24
14.7%
Q3 24
10.3%
Q2 24
17.7%
Q1 24
14.2%
Operating Margin
HTFL
HTFL
SND
SND
Q4 25
-3.1%
Q3 25
-32.6%
5.8%
Q2 25
-31.6%
-0.1%
Q1 25
-10.8%
Q4 24
3.9%
Q3 24
-7.8%
Q2 24
4.8%
Q1 24
0.9%
Net Margin
HTFL
HTFL
SND
SND
Q4 25
1.4%
Q3 25
-109.9%
3.2%
Q2 25
-21.2%
24.9%
Q1 25
-37.0%
Q4 24
4.1%
Q3 24
-0.2%
Q2 24
-0.6%
Q1 24
-0.3%
EPS (diluted)
HTFL
HTFL
SND
SND
Q4 25
$0.03
Q3 25
$-1.04
$0.08
Q2 25
$-1.46
$0.54
Q1 25
$-0.62
Q4 24
$0.10
Q3 24
$0.00
Q2 24
$-0.01
Q1 24
$-0.01

Balance Sheet & Financial Strength

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

Metric
HTFL
HTFL
SND
SND
Cash + ST InvestmentsLiquidity on hand
$291.2M
$22.6M
Total DebtLower is stronger
$15.0M
Stockholders' EquityBook value
$254.6M
$239.7M
Total Assets
$364.4M
$340.0M
Debt / EquityLower = less leverage
0.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
HTFL
HTFL
SND
SND
Q4 25
$22.6M
Q3 25
$291.2M
$5.1M
Q2 25
$80.2M
$4.3M
Q1 25
$5.1M
Q4 24
$1.6M
Q3 24
$7.2M
Q2 24
$6.3M
Q1 24
$4.6M
Total Debt
HTFL
HTFL
SND
SND
Q4 25
$15.0M
Q3 25
$14.3M
Q2 25
$23.5M
Q1 25
$13.7M
Q4 24
$14.7M
Q3 24
$15.7M
Q2 24
$17.1M
Q1 24
$25.5M
Stockholders' Equity
HTFL
HTFL
SND
SND
Q4 25
$239.7M
Q3 25
$254.6M
$239.9M
Q2 25
$-894.8M
$240.5M
Q1 25
$219.9M
Q4 24
$243.8M
Q3 24
$243.6M
Q2 24
$242.9M
Q1 24
$242.5M
Total Assets
HTFL
HTFL
SND
SND
Q4 25
$340.0M
Q3 25
$364.4M
$343.1M
Q2 25
$159.4M
$345.8M
Q1 25
$326.9M
Q4 24
$341.5M
Q3 24
$335.8M
Q2 24
$341.8M
Q1 24
$349.3M
Debt / Equity
HTFL
HTFL
SND
SND
Q4 25
0.06×
Q3 25
0.06×
Q2 25
0.10×
Q1 25
0.06×
Q4 24
0.06×
Q3 24
0.06×
Q2 24
0.07×
Q1 24
0.11×

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
SND
SND
Operating Cash FlowLast quarter
$-3.0M
$22.4M
Free Cash FlowOCF − Capex
$-4.2M
$20.4M
FCF MarginFCF / Revenue
-9.1%
23.7%
Capex IntensityCapex / Revenue
2.7%
2.3%
Cash ConversionOCF / Net Profit
18.99×
TTM Free Cash FlowTrailing 4 quarters
$32.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
HTFL
HTFL
SND
SND
Q4 25
$22.4M
Q3 25
$-3.0M
$18.2M
Q2 25
$-40.5M
$-5.1M
Q1 25
$8.7M
Q4 24
$1.0M
Q3 24
$5.8M
Q2 24
$14.9M
Q1 24
$-3.9M
Free Cash Flow
HTFL
HTFL
SND
SND
Q4 25
$20.4M
Q3 25
$-4.2M
$14.8M
Q2 25
$-42.4M
$-7.8M
Q1 25
$5.2M
Q4 24
$-840.0K
Q3 24
$3.7M
Q2 24
$13.5M
Q1 24
$-5.5M
FCF Margin
HTFL
HTFL
SND
SND
Q4 25
23.7%
Q3 25
-9.1%
15.9%
Q2 25
-97.6%
-9.1%
Q1 25
7.9%
Q4 24
-0.9%
Q3 24
5.8%
Q2 24
18.3%
Q1 24
-6.6%
Capex Intensity
HTFL
HTFL
SND
SND
Q4 25
2.3%
Q3 25
2.7%
3.6%
Q2 25
4.4%
3.1%
Q1 25
5.4%
Q4 24
2.1%
Q3 24
3.4%
Q2 24
1.8%
Q1 24
2.0%
Cash Conversion
HTFL
HTFL
SND
SND
Q4 25
18.99×
Q3 25
6.05×
Q2 25
-0.24×
Q1 25
Q4 24
0.28×
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

HTFL
HTFL

Segment breakdown not available.

SND
SND

Sand$85.1M99%
Smart Systems Segment$980.0K1%

Related Comparisons