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Side-by-side financial comparison of INTRUSION INC (INTZ) and PLUS THERAPEUTICS, INC. (PSTV). Click either name above to swap in a different company.

INTRUSION INC is the larger business by last-quarter revenue ($1.5M vs $1.4M, roughly 1.1× PLUS THERAPEUTICS, INC.). INTRUSION INC runs the higher net margin — -190.7% vs -417.9%, a 227.2% gap on every dollar of revenue. On growth, PLUS THERAPEUTICS, INC. posted the faster year-over-year revenue change (-3.2% vs -11.6%). INTRUSION INC produced more free cash flow last quarter ($-549.0K vs $-6.3M). Over the past eight quarters, INTRUSION INC's revenue compounded faster (14.4% CAGR vs -9.7%).

Intrusion Inc. is a cybersecurity company based in Plano, Texas. It provides cybersecurity solutions, including network intrusion detection and prevention systems.

Plus Therapeutics, Inc. is a clinical-stage pharmaceutical company headquartered in Houston, Texas, that develops targeted radiotherapeutics and diagnostic services for brain and central nervous system (CNS) cancers. The company’s lead therapeutic candidate, marketed as REYOBIQ™, is an investigational liposomal radiopharmaceutical under clinical evaluation for recurrent glioblastoma, leptomeningeal metastases, and certain pediatric brain cancers. Plus Therapeutics also commercialized a molecu...

INTZ vs PSTV — Head-to-Head

Bigger by revenue
INTZ
INTZ
1.1× larger
INTZ
$1.5M
$1.4M
PSTV
Growing faster (revenue YoY)
PSTV
PSTV
+8.4% gap
PSTV
-3.2%
-11.6%
INTZ
Higher net margin
INTZ
INTZ
227.2% more per $
INTZ
-190.7%
-417.9%
PSTV
More free cash flow
INTZ
INTZ
$5.7M more FCF
INTZ
$-549.0K
$-6.3M
PSTV
Faster 2-yr revenue CAGR
INTZ
INTZ
Annualised
INTZ
14.4%
-9.7%
PSTV

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
INTZ
INTZ
PSTV
PSTV
Revenue
$1.5M
$1.4M
Net Profit
$-2.8M
$-5.7M
Gross Margin
74.3%
Operating Margin
-192.4%
-420.0%
Net Margin
-190.7%
-417.9%
Revenue YoY
-11.6%
-3.2%
Net Profit YoY
-44.4%
-46.4%
EPS (diluted)
$-0.15
$0.95

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
INTZ
INTZ
PSTV
PSTV
Q4 25
$1.5M
$1.4M
Q3 25
$2.0M
$1.4M
Q2 25
$1.9M
$1.4M
Q1 25
$1.8M
$1.1M
Q4 24
$1.7M
$1.4M
Q3 24
$1.5M
$1.5M
Q2 24
$1.5M
$1.3M
Q1 24
$1.1M
$1.7M
Net Profit
INTZ
INTZ
PSTV
PSTV
Q4 25
$-2.8M
$-5.7M
Q3 25
$-2.1M
$-4.4M
Q2 25
$-2.0M
$5.2M
Q1 25
$-2.1M
$-17.4M
Q4 24
$-2.0M
$-3.9M
Q3 24
$-2.0M
$-2.9M
Q2 24
$-2.1M
$-2.9M
Q1 24
$-1.7M
$-3.3M
Gross Margin
INTZ
INTZ
PSTV
PSTV
Q4 25
74.3%
Q3 25
76.6%
Q2 25
76.4%
Q1 25
75.7%
Q4 24
74.9%
Q3 24
77.1%
Q2 24
76.0%
Q1 24
80.0%
Operating Margin
INTZ
INTZ
PSTV
PSTV
Q4 25
-192.4%
-420.0%
Q3 25
-108.6%
-320.8%
Q2 25
-111.4%
-110.6%
Q1 25
-117.9%
-333.9%
Q4 24
-113.5%
-276.2%
Q3 24
-135.5%
-260.9%
Q2 24
-139.2%
-289.1%
Q1 24
-218.6%
-196.7%
Net Margin
INTZ
INTZ
PSTV
PSTV
Q4 25
-190.7%
-417.9%
Q3 25
-106.5%
-316.6%
Q2 25
-109.0%
370.6%
Q1 25
-118.2%
-1643.2%
Q4 24
-116.8%
-276.4%
Q3 24
-136.3%
-197.4%
Q2 24
-141.6%
-229.9%
Q1 24
-151.7%
-194.5%
EPS (diluted)
INTZ
INTZ
PSTV
PSTV
Q4 25
$-0.15
$0.95
Q3 25
$-0.10
$-0.04
Q2 25
$-0.10
$-0.01
Q1 25
$-0.11
$-1.19
Q4 24
$0.19
$-0.51
Q3 24
$-0.35
$-0.37
Q2 24
$-0.53
$-0.71
Q1 24
$-0.94
$-0.75

Balance Sheet & Financial Strength

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

Metric
INTZ
INTZ
PSTV
PSTV
Cash + ST InvestmentsLiquidity on hand
$3.6M
$8.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$7.3M
$4.0M
Total Assets
$10.4M
$16.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
INTZ
INTZ
PSTV
PSTV
Q4 25
$3.6M
$8.6M
Q3 25
$4.5M
$16.6M
Q2 25
$8.4M
$6.9M
Q1 25
$10.7M
$9.9M
Q4 24
$4.9M
$3.6M
Q3 24
$1.1M
$4.8M
Q2 24
$1.5M
$8.4M
Q1 24
$122.0K
$3.2M
Stockholders' Equity
INTZ
INTZ
PSTV
PSTV
Q4 25
$7.3M
$4.0M
Q3 25
$9.8M
$5.1M
Q2 25
$11.6M
$3.0M
Q1 25
$13.4M
$-23.6M
Q4 24
$6.3M
$-8.9M
Q3 24
$2.6M
$-5.2M
Q2 24
$2.9M
$-7.6M
Q1 24
$-1.2M
$-4.8M
Total Assets
INTZ
INTZ
PSTV
PSTV
Q4 25
$10.4M
$16.3M
Q3 25
$13.7M
$18.7M
Q2 25
$16.4M
$10.3M
Q1 25
$18.0M
$12.1M
Q4 24
$11.5M
$6.6M
Q3 24
$7.4M
$7.0M
Q2 24
$7.5M
$11.2M
Q1 24
$5.7M
$5.6M

Cash Flow & Capital Efficiency

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

Metric
INTZ
INTZ
PSTV
PSTV
Operating Cash FlowLast quarter
$-531.0K
$-6.3M
Free Cash FlowOCF − Capex
$-549.0K
$-6.3M
FCF MarginFCF / Revenue
-37.1%
-459.9%
Capex IntensityCapex / Revenue
1.2%
2.2%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-7.5M
$-20.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
INTZ
INTZ
PSTV
PSTV
Q4 25
$-531.0K
$-6.3M
Q3 25
$-3.0M
$-2.5M
Q2 25
$-1.6M
$-5.8M
Q1 25
$-1.7M
$-6.2M
Q4 24
$-178.0K
$-1.2M
Q3 24
$-2.1M
$-3.7M
Q2 24
$-2.9M
$-1.1M
Q1 24
$-1.1M
$-4.5M
Free Cash Flow
INTZ
INTZ
PSTV
PSTV
Q4 25
$-549.0K
$-6.3M
Q3 25
$-3.0M
$-2.6M
Q2 25
$-1.9M
$-5.8M
Q1 25
$-2.1M
$-6.2M
Q4 24
$-645.0K
$-1.2M
Q3 24
$-2.1M
$-3.7M
Q2 24
$-3.0M
$-1.2M
Q1 24
$-1.2M
$-4.6M
FCF Margin
INTZ
INTZ
PSTV
PSTV
Q4 25
-37.1%
-459.9%
Q3 25
-153.2%
-184.3%
Q2 25
-101.1%
-417.6%
Q1 25
-117.3%
-583.1%
Q4 24
-38.5%
-86.5%
Q3 24
-140.4%
-253.7%
Q2 24
-202.3%
-96.2%
Q1 24
-104.2%
-271.5%
Capex Intensity
INTZ
INTZ
PSTV
PSTV
Q4 25
1.2%
2.2%
Q3 25
1.7%
1.9%
Q2 25
17.8%
0.5%
Q1 25
22.1%
0.3%
Q4 24
27.9%
0.8%
Q3 24
2.2%
1.0%
Q2 24
2.1%
6.3%
Q1 24
5.7%
2.4%
Cash Conversion
INTZ
INTZ
PSTV
PSTV
Q4 25
Q3 25
Q2 25
-1.13×
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

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