vs

Side-by-side financial comparison of OmniAb, Inc. (OABI) 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 $8.4M, roughly 1.5× OmniAb, Inc.). Spero Therapeutics, Inc. runs the higher net margin — 250.7% vs -169.3%, a 420.0% gap on every dollar of revenue. On growth, Spero Therapeutics, Inc. posted the faster year-over-year revenue change (24080.8% vs -22.5%). Over the past eight quarters, Spero Therapeutics, Inc.'s revenue compounded faster (847.7% CAGR vs -51.3%).

OmniAb, Inc. is a global biotechnology firm specializing in proprietary transgenic animal platforms and antibody discovery solutions. It partners with pharma and biotech clients to accelerate fully human therapeutic antibody development for oncology, autoimmune diseases and high-need medical areas across key global markets.

OABI vs SPRO — Head-to-Head

Bigger by revenue
SPRO
SPRO
1.5× larger
SPRO
$12.6M
$8.4M
OABI
Growing faster (revenue YoY)
SPRO
SPRO
+24103.2% gap
SPRO
24080.8%
-22.5%
OABI
Higher net margin
SPRO
SPRO
420.0% more per $
SPRO
250.7%
-169.3%
OABI
Faster 2-yr revenue CAGR
SPRO
SPRO
Annualised
SPRO
847.7%
-51.3%
OABI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
OABI
OABI
SPRO
SPRO
Revenue
$8.4M
$12.6M
Net Profit
$-14.2M
$31.5M
Gross Margin
Operating Margin
-188.2%
Net Margin
-169.3%
250.7%
Revenue YoY
-22.5%
24080.8%
Net Profit YoY
-8.5%
250.9%
EPS (diluted)
$-0.11
$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
OABI
OABI
SPRO
SPRO
Q4 25
$8.4M
$12.6M
Q3 25
$0
Q2 25
$0
Q1 25
$12.0K
Q4 24
$10.8M
$52.0K
Q3 24
$65.0K
Q2 24
$7.6M
$114.0K
Q1 24
$140.0K
Net Profit
OABI
OABI
SPRO
SPRO
Q4 25
$-14.2M
$31.5M
Q3 25
$-7.4M
Q2 25
$-1.7M
Q1 25
$-13.9M
Q4 24
$-13.1M
Q3 24
$-17.1M
Q2 24
$-13.6M
$-17.9M
Q1 24
$-12.7M
Operating Margin
OABI
OABI
SPRO
SPRO
Q4 25
-188.2%
Q3 25
Q2 25
Q1 25
-122758.3%
Q4 24
-147.0%
Q3 24
-28604.6%
Q2 24
-214.1%
-16720.2%
Q1 24
-9987.1%
Net Margin
OABI
OABI
SPRO
SPRO
Q4 25
-169.3%
250.7%
Q3 25
Q2 25
Q1 25
-115550.0%
Q4 24
-121.0%
Q3 24
-26380.0%
Q2 24
-179.0%
-15668.4%
Q1 24
-9049.3%
EPS (diluted)
OABI
OABI
SPRO
SPRO
Q4 25
$-0.11
$0.56
Q3 25
$-0.13
Q2 25
$-0.03
Q1 25
$-0.25
Q4 24
$-0.13
Q3 24
$-0.32
Q2 24
$-0.13
$-0.33
Q1 24
$-0.24

Balance Sheet & Financial Strength

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

Metric
OABI
OABI
SPRO
SPRO
Cash + ST InvestmentsLiquidity on hand
$25.5M
$40.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$267.0M
$59.0M
Total Assets
$300.9M
$68.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OABI
OABI
SPRO
SPRO
Q4 25
$25.5M
$40.3M
Q3 25
$48.6M
Q2 25
$31.2M
Q1 25
$48.9M
Q4 24
$27.6M
$52.9M
Q3 24
$76.3M
Q2 24
$20.8M
$63.5M
Q1 24
$82.3M
Stockholders' Equity
OABI
OABI
SPRO
SPRO
Q4 25
$267.0M
$59.0M
Q3 25
$26.5M
Q2 25
$32.8M
Q1 25
$33.8M
Q4 24
$287.6M
$46.1M
Q3 24
$65.5M
Q2 24
$294.2M
$80.5M
Q1 24
$96.2M
Total Assets
OABI
OABI
SPRO
SPRO
Q4 25
$300.9M
$68.9M
Q3 25
$54.2M
Q2 25
$62.1M
Q1 25
$77.7M
Q4 24
$325.6M
$110.5M
Q3 24
$135.2M
Q2 24
$337.3M
$149.9M
Q1 24
$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
OABI
OABI
SPRO
SPRO
Operating Cash FlowLast quarter
$-5.7M
$-8.4M
Free Cash FlowOCF − Capex
$-5.7M
FCF MarginFCF / Revenue
-67.8%
Capex IntensityCapex / Revenue
0.1%
Cash ConversionOCF / Net Profit
-0.26×
TTM Free Cash FlowTrailing 4 quarters
$-31.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OABI
OABI
SPRO
SPRO
Q4 25
$-5.7M
$-8.4M
Q3 25
$17.4M
Q2 25
$-17.7M
Q1 25
$-4.0M
Q4 24
$-3.9M
$-23.4M
Q3 24
$12.8M
Q2 24
$-12.2M
$-18.7M
Q1 24
$5.9M
Free Cash Flow
OABI
OABI
SPRO
SPRO
Q4 25
$-5.7M
Q3 25
Q2 25
Q1 25
Q4 24
$-3.9M
Q3 24
Q2 24
$-12.9M
Q1 24
FCF Margin
OABI
OABI
SPRO
SPRO
Q4 25
-67.8%
Q3 25
Q2 25
Q1 25
Q4 24
-36.3%
Q3 24
Q2 24
-169.9%
Q1 24
Capex Intensity
OABI
OABI
SPRO
SPRO
Q4 25
0.1%
Q3 25
Q2 25
Q1 25
Q4 24
0.4%
Q3 24
Q2 24
9.9%
Q1 24
Cash Conversion
OABI
OABI
SPRO
SPRO
Q4 25
-0.26×
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Related Comparisons