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Side-by-side financial comparison of NUSCALE POWER Corp (SMR) 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 $8.2M, roughly 1.5× NUSCALE POWER Corp). Spero Therapeutics, Inc. runs the higher net margin — 250.7% vs -3316.2%, a 3566.8% gap on every dollar of revenue. On growth, Spero Therapeutics, Inc. posted the faster year-over-year revenue change (24080.8% vs 1635.2%). Over the past eight quarters, Spero Therapeutics, Inc.'s revenue compounded faster (847.7% CAGR vs 22.4%).

NuScale Power Corporation is a publicly traded American company that designs and markets small modular reactors (SMRs). It is headquartered in Tigard, Oregon. The company's VOYGR power plant, which uses 50 MWe modules and scales to 12 modules, was the first SMR to be certified by the US Nuclear Regulatory Commission (NRC) (2022). The newer 77 MWe module designs, known as the VOYGR-4 and VOYGR-6, were submitted for NRC review on January 1, 2023, and approved May 29, 2025. NuScale is now seekin...

SMR vs SPRO — Head-to-Head

Bigger by revenue
SPRO
SPRO
1.5× larger
SPRO
$12.6M
$8.2M
SMR
Growing faster (revenue YoY)
SPRO
SPRO
+22445.6% gap
SPRO
24080.8%
1635.2%
SMR
Higher net margin
SPRO
SPRO
3566.8% more per $
SPRO
250.7%
-3316.2%
SMR
Faster 2-yr revenue CAGR
SPRO
SPRO
Annualised
SPRO
847.7%
22.4%
SMR

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
SMR
SMR
SPRO
SPRO
Revenue
$8.2M
$12.6M
Net Profit
$-273.3M
$31.5M
Gross Margin
32.9%
Operating Margin
-6532.9%
Net Margin
-3316.2%
250.7%
Revenue YoY
1635.2%
24080.8%
Net Profit YoY
-1465.5%
250.9%
EPS (diluted)
$-1.85
$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
SMR
SMR
SPRO
SPRO
Q4 25
$12.6M
Q3 25
$8.2M
$0
Q2 25
$8.1M
$0
Q1 25
$13.4M
$12.0K
Q4 24
$34.2M
$52.0K
Q3 24
$65.0K
Q2 24
$114.0K
Q1 24
$140.0K
Net Profit
SMR
SMR
SPRO
SPRO
Q4 25
$31.5M
Q3 25
$-273.3M
$-7.4M
Q2 25
$-17.6M
$-1.7M
Q1 25
$-14.0M
$-13.9M
Q4 24
$-75.0M
Q3 24
$-17.1M
Q2 24
$-17.9M
Q1 24
$-12.7M
Gross Margin
SMR
SMR
SPRO
SPRO
Q4 25
Q3 25
32.9%
Q2 25
22.1%
Q1 25
52.4%
Q4 24
91.1%
Q3 24
Q2 24
Q1 24
Operating Margin
SMR
SMR
SPRO
SPRO
Q4 25
Q3 25
-6532.9%
Q2 25
-534.9%
Q1 25
-264.1%
-122758.3%
Q4 24
-34.6%
Q3 24
-28604.6%
Q2 24
-16720.2%
Q1 24
-9987.1%
Net Margin
SMR
SMR
SPRO
SPRO
Q4 25
250.7%
Q3 25
-3316.2%
Q2 25
-219.0%
Q1 25
-104.7%
-115550.0%
Q4 24
-219.1%
Q3 24
-26380.0%
Q2 24
-15668.4%
Q1 24
-9049.3%
EPS (diluted)
SMR
SMR
SPRO
SPRO
Q4 25
$0.56
Q3 25
$-1.85
$-0.13
Q2 25
$-0.13
$-0.03
Q1 25
$-0.11
$-0.25
Q4 24
$-0.77
Q3 24
$-0.32
Q2 24
$-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
SMR
SMR
SPRO
SPRO
Cash + ST InvestmentsLiquidity on hand
$691.8M
$40.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$828.7M
$59.0M
Total Assets
$883.1M
$68.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SMR
SMR
SPRO
SPRO
Q4 25
$40.3M
Q3 25
$691.8M
$48.6M
Q2 25
$420.7M
$31.2M
Q1 25
$521.4M
$48.9M
Q4 24
$441.6M
$52.9M
Q3 24
$76.3M
Q2 24
$63.5M
Q1 24
$82.3M
Stockholders' Equity
SMR
SMR
SPRO
SPRO
Q4 25
$59.0M
Q3 25
$828.7M
$26.5M
Q2 25
$692.9M
$32.8M
Q1 25
$704.0M
$33.8M
Q4 24
$618.7M
$46.1M
Q3 24
$65.5M
Q2 24
$80.5M
Q1 24
$96.2M
Total Assets
SMR
SMR
SPRO
SPRO
Q4 25
$68.9M
Q3 25
$883.1M
$54.2M
Q2 25
$606.5M
$62.1M
Q1 25
$618.1M
$77.7M
Q4 24
$544.7M
$110.5M
Q3 24
$135.2M
Q2 24
$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
SMR
SMR
SPRO
SPRO
Operating Cash FlowLast quarter
$-199.8M
$-8.4M
Free Cash FlowOCF − Capex
$-199.9M
FCF MarginFCF / Revenue
-2425.1%
Capex IntensityCapex / Revenue
0.9%
Cash ConversionOCF / Net Profit
-0.26×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SMR
SMR
SPRO
SPRO
Q4 25
$-8.4M
Q3 25
$-199.8M
$17.4M
Q2 25
$-33.3M
$-17.7M
Q1 25
$-22.8M
$-4.0M
Q4 24
$-26.4M
$-23.4M
Q3 24
$12.8M
Q2 24
$-18.7M
Q1 24
$5.9M
Free Cash Flow
SMR
SMR
SPRO
SPRO
Q4 25
Q3 25
$-199.9M
Q2 25
Q1 25
$-22.9M
Q4 24
$-26.5M
Q3 24
Q2 24
Q1 24
FCF Margin
SMR
SMR
SPRO
SPRO
Q4 25
Q3 25
-2425.1%
Q2 25
Q1 25
-170.9%
Q4 24
-77.3%
Q3 24
Q2 24
Q1 24
Capex Intensity
SMR
SMR
SPRO
SPRO
Q4 25
Q3 25
0.9%
Q2 25
Q1 25
0.5%
Q4 24
0.1%
Q3 24
Q2 24
Q1 24
Cash Conversion
SMR
SMR
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.

Revenue Breakdown by Segment

SMR
SMR

Power Plant And NPM Engineering Design And Licensing Services And Fees$8.0M97%
Other$208.0K3%

SPRO
SPRO

Segment breakdown not available.

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