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Side-by-side financial comparison of Airship AI Holdings, Inc. (AISP) and Spero Therapeutics, Inc. (SPRO). Click either name above to swap in a different company.

Spero Therapeutics, Inc. is the larger business by last-quarter revenue ($12.6M vs $6.5M, roughly 1.9× Airship AI Holdings, Inc.). Airship AI Holdings, Inc. runs the higher net margin — 353.6% vs 250.7%, a 102.9% gap on every dollar of revenue. On growth, Spero Therapeutics, Inc. posted the faster year-over-year revenue change (24080.8% vs 102.5%). Over the past eight quarters, Spero Therapeutics, Inc.'s revenue compounded faster (847.7% CAGR vs 24.2%).

Airship Industries was a British manufacturers of modern non-rigid airships (blimps) active under that name from 1980 to 1990 and controlled for part of that time by Alan Bond. The first company, Aerospace Developments, was founded in 1970, and a successor, Hybrid Air Vehicles, remains active as of 2022. Airship Industries itself was active between 1980 and 1990.

AISP vs SPRO — Head-to-Head

Bigger by revenue
SPRO
SPRO
1.9× larger
SPRO
$12.6M
$6.5M
AISP
Growing faster (revenue YoY)
SPRO
SPRO
+23978.2% gap
SPRO
24080.8%
102.5%
AISP
Higher net margin
AISP
AISP
102.9% more per $
AISP
353.6%
250.7%
SPRO
Faster 2-yr revenue CAGR
SPRO
SPRO
Annualised
SPRO
847.7%
24.2%
AISP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AISP
AISP
SPRO
SPRO
Revenue
$6.5M
$12.6M
Net Profit
$23.0M
$31.5M
Gross Margin
51.2%
Operating Margin
-9.4%
Net Margin
353.6%
250.7%
Revenue YoY
102.5%
24080.8%
Net Profit YoY
145.8%
250.9%
EPS (diluted)
$0.75
$0.56

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
AISP
AISP
SPRO
SPRO
Q4 25
$6.5M
$12.6M
Q3 25
$0
Q2 25
$2.1M
$0
Q1 25
$5.5M
$12.0K
Q4 24
$3.2M
$52.0K
Q3 24
$2.9M
$65.0K
Q2 24
$6.4M
$114.0K
Q1 24
$10.6M
$140.0K
Net Profit
AISP
AISP
SPRO
SPRO
Q4 25
$23.0M
$31.5M
Q3 25
$-7.4M
Q2 25
$-23.8M
$-1.7M
Q1 25
$23.7M
$-13.9M
Q4 24
$-50.2M
Q3 24
$6.2M
$-17.1M
Q2 24
$18.5M
$-17.9M
Q1 24
$-32.0M
$-12.7M
Gross Margin
AISP
AISP
SPRO
SPRO
Q4 25
51.2%
Q3 25
Q2 25
71.4%
Q1 25
40.6%
Q4 24
38.6%
Q3 24
75.1%
Q2 24
70.4%
Q1 24
24.9%
Operating Margin
AISP
AISP
SPRO
SPRO
Q4 25
-9.4%
Q3 25
Q2 25
-94.2%
Q1 25
-31.2%
-122758.3%
Q4 24
-46.5%
Q3 24
-55.4%
-28604.6%
Q2 24
15.3%
-16720.2%
Q1 24
-13.3%
-9987.1%
Net Margin
AISP
AISP
SPRO
SPRO
Q4 25
353.6%
250.7%
Q3 25
Q2 25
-1106.6%
Q1 25
430.8%
-115550.0%
Q4 24
-1564.8%
Q3 24
216.7%
-26380.0%
Q2 24
288.4%
-15668.4%
Q1 24
-302.3%
-9049.3%
EPS (diluted)
AISP
AISP
SPRO
SPRO
Q4 25
$0.75
$0.56
Q3 25
$-0.13
Q2 25
$-0.75
$-0.03
Q1 25
$0.61
$-0.25
Q4 24
$-1.72
Q3 24
$0.17
$-0.32
Q2 24
$0.61
$-0.33
Q1 24
$-1.40
$-0.24

Balance Sheet & Financial Strength

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

Metric
AISP
AISP
SPRO
SPRO
Cash + ST InvestmentsLiquidity on hand
$11.8M
$40.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$-7.1M
$59.0M
Total Assets
$19.5M
$68.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AISP
AISP
SPRO
SPRO
Q4 25
$11.8M
$40.3M
Q3 25
$48.6M
Q2 25
$6.3M
$31.2M
Q1 25
$8.8M
$48.9M
Q4 24
$11.4M
$52.9M
Q3 24
$6.5M
$76.3M
Q2 24
$226.8K
$63.5M
Q1 24
$1.7M
$82.3M
Stockholders' Equity
AISP
AISP
SPRO
SPRO
Q4 25
$-7.1M
$59.0M
Q3 25
$26.5M
Q2 25
$-46.9M
$32.8M
Q1 25
$-23.5M
$33.8M
Q4 24
$-53.0M
$46.1M
Q3 24
$-12.9M
$65.5M
Q2 24
$-28.0M
$80.5M
Q1 24
$-48.1M
$96.2M
Total Assets
AISP
AISP
SPRO
SPRO
Q4 25
$19.5M
$68.9M
Q3 25
$54.2M
Q2 25
$10.1M
$62.1M
Q1 25
$12.9M
$77.7M
Q4 24
$13.7M
$110.5M
Q3 24
$9.1M
$135.2M
Q2 24
$5.3M
$149.9M
Q1 24
$4.7M
$167.7M

Cash Flow & Capital Efficiency

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

Metric
AISP
AISP
SPRO
SPRO
Operating Cash FlowLast quarter
$-3.5M
$-8.4M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
-0.15×
-0.26×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AISP
AISP
SPRO
SPRO
Q4 25
$-3.5M
$-8.4M
Q3 25
$17.4M
Q2 25
$-1.8M
$-17.7M
Q1 25
$-2.1M
$-4.0M
Q4 24
$-2.1M
$-23.4M
Q3 24
$-251.4K
$12.8M
Q2 24
$-2.5M
$-18.7M
Q1 24
$-1.7M
$5.9M
Cash Conversion
AISP
AISP
SPRO
SPRO
Q4 25
-0.15×
-0.26×
Q3 25
Q2 25
Q1 25
-0.09×
Q4 24
Q3 24
-0.04×
Q2 24
-0.13×
Q1 24

Financial Flow Comparison

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

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