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Side-by-side financial comparison of ASP Isotopes Inc. (ASPI) and SOUNDTHINKING, INC. (SSTI). Click either name above to swap in a different company.

SOUNDTHINKING, INC. is the larger business by last-quarter revenue ($24.8M vs $16.7M, roughly 1.5× ASP Isotopes Inc.). On growth, ASP Isotopes Inc. posted the faster year-over-year revenue change (1295.7% vs 5.9%). SOUNDTHINKING, INC. produced more free cash flow last quarter ($3.7M vs $-47.4M).

ASP Isotopes Inc. is a specialty materials firm focused on developing and producing high-purity custom isotopes. Its products serve key sectors including nuclear medicine, targeted cancer therapies, advanced energy, and industrial research, with customers across North America, Europe and Asia Pacific.

SoundThinking, Inc. is a public safety technology provider specializing in acoustic monitoring solutions, most notably gunshot detection systems. It delivers data-driven tools and analytics services to law enforcement agencies, municipal governments and public safety organizations primarily across North America, helping improve emergency response efficiency and community safety outcomes.

ASPI vs SSTI — Head-to-Head

Bigger by revenue
SSTI
SSTI
1.5× larger
SSTI
$24.8M
$16.7M
ASPI
Growing faster (revenue YoY)
ASPI
ASPI
+1289.8% gap
ASPI
1295.7%
5.9%
SSTI
More free cash flow
SSTI
SSTI
$51.1M more FCF
SSTI
$3.7M
$-47.4M
ASPI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ASPI
ASPI
SSTI
SSTI
Revenue
$16.7M
$24.8M
Net Profit
$-2.8M
Gross Margin
12.5%
50.9%
Operating Margin
-10.2%
Net Margin
-11.2%
Revenue YoY
1295.7%
5.9%
Net Profit YoY
-586.8%
32.0%
EPS (diluted)
$-0.22

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
ASPI
ASPI
SSTI
SSTI
Q4 25
$16.7M
$24.8M
Q3 25
$4.9M
$25.1M
Q2 25
$25.9M
Q1 25
$28.3M
Q4 24
$23.4M
Q3 24
$26.3M
Q2 24
$27.0M
Q1 24
$25.4M
Net Profit
ASPI
ASPI
SSTI
SSTI
Q4 25
$-2.8M
Q3 25
$-12.9M
$-2.0M
Q2 25
$-3.1M
Q1 25
$-1.5M
Q4 24
$-4.1M
Q3 24
$-1.4M
Q2 24
$-752.0K
Q1 24
$-2.9M
Gross Margin
ASPI
ASPI
SSTI
SSTI
Q4 25
12.5%
50.9%
Q3 25
8.7%
54.3%
Q2 25
53.3%
Q1 25
58.5%
Q4 24
50.0%
Q3 24
58.0%
Q2 24
59.6%
Q1 24
58.6%
Operating Margin
ASPI
ASPI
SSTI
SSTI
Q4 25
-10.2%
Q3 25
-306.1%
-8.2%
Q2 25
-11.4%
Q1 25
-4.2%
Q4 24
-17.7%
Q3 24
-4.0%
Q2 24
-0.2%
Q1 24
-10.3%
Net Margin
ASPI
ASPI
SSTI
SSTI
Q4 25
-11.2%
Q3 25
-263.7%
-8.1%
Q2 25
-12.1%
Q1 25
-5.2%
Q4 24
-17.4%
Q3 24
-5.5%
Q2 24
-2.8%
Q1 24
-11.4%
EPS (diluted)
ASPI
ASPI
SSTI
SSTI
Q4 25
$-0.22
Q3 25
$-0.15
$-0.16
Q2 25
$-0.24
Q1 25
$-0.12
Q4 24
$-0.32
Q3 24
$-0.11
Q2 24
$-0.06
Q1 24
$-0.23

Balance Sheet & Financial Strength

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

Metric
ASPI
ASPI
SSTI
SSTI
Cash + ST InvestmentsLiquidity on hand
$333.3M
$15.8M
Total DebtLower is stronger
$14.4M
Stockholders' EquityBook value
$204.2M
$72.2M
Total Assets
$498.0M
$135.8M
Debt / EquityLower = less leverage
0.07×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ASPI
ASPI
SSTI
SSTI
Q4 25
$333.3M
$15.8M
Q3 25
$113.9M
$11.8M
Q2 25
$8.9M
Q1 25
$11.7M
Q4 24
$13.2M
Q3 24
$15.3M
Q2 24
$9.8M
Q1 24
$8.5M
Total Debt
ASPI
ASPI
SSTI
SSTI
Q4 25
$14.4M
Q3 25
$13.9M
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ASPI
ASPI
SSTI
SSTI
Q4 25
$204.2M
$72.2M
Q3 25
$74.1M
$73.5M
Q2 25
$74.5M
Q1 25
$73.8M
Q4 24
$72.4M
Q3 24
$73.3M
Q2 24
$75.6M
Q1 24
$74.8M
Total Assets
ASPI
ASPI
SSTI
SSTI
Q4 25
$498.0M
$135.8M
Q3 25
$225.9M
$134.4M
Q2 25
$134.8M
Q1 25
$136.3M
Q4 24
$136.8M
Q3 24
$141.7M
Q2 24
$145.9M
Q1 24
$145.0M
Debt / Equity
ASPI
ASPI
SSTI
SSTI
Q4 25
0.07×
Q3 25
0.19×
Q2 25
Q1 25
Q4 24
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
ASPI
ASPI
SSTI
SSTI
Operating Cash FlowLast quarter
$-37.8M
$4.5M
Free Cash FlowOCF − Capex
$-47.4M
$3.7M
FCF MarginFCF / Revenue
-284.7%
14.9%
Capex IntensityCapex / Revenue
57.9%
3.2%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$4.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ASPI
ASPI
SSTI
SSTI
Q4 25
$-37.8M
$4.5M
Q3 25
$-8.9M
$6.2M
Q2 25
$-1.3M
Q1 25
$-141.0K
Q4 24
$-859.0K
Q3 24
$13.7M
Q2 24
$4.4M
Q1 24
$5.0M
Free Cash Flow
ASPI
ASPI
SSTI
SSTI
Q4 25
$-47.4M
$3.7M
Q3 25
$-12.0M
$4.9M
Q2 25
$-2.7M
Q1 25
$-1.0M
Q4 24
$-2.2M
Q3 24
$12.4M
Q2 24
$2.8M
Q1 24
$2.8M
FCF Margin
ASPI
ASPI
SSTI
SSTI
Q4 25
-284.7%
14.9%
Q3 25
-245.5%
19.4%
Q2 25
-10.3%
Q1 25
-3.7%
Q4 24
-9.5%
Q3 24
47.4%
Q2 24
10.5%
Q1 24
11.2%
Capex Intensity
ASPI
ASPI
SSTI
SSTI
Q4 25
57.9%
3.2%
Q3 25
64.4%
5.5%
Q2 25
5.3%
Q1 25
3.2%
Q4 24
5.8%
Q3 24
4.7%
Q2 24
5.9%
Q1 24
8.4%

Financial Flow Comparison

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

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