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Side-by-side financial comparison of Greenidge Generation Holdings Inc. (GREE) 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 $11.5M, roughly 1.1× Greenidge Generation Holdings Inc.). Spero Therapeutics, Inc. runs the higher net margin — 250.7% vs 26.3%, a 224.4% gap on every dollar of revenue. On growth, Spero Therapeutics, Inc. posted the faster year-over-year revenue change (24080.8% vs -22.6%). Over the past eight quarters, Spero Therapeutics, Inc.'s revenue compounded faster (847.7% CAGR vs -23.0%).

Greenidge Generation Holdings Inc. is a U.S.-based firm operating integrated cryptocurrency mining facilities and low-carbon power generation assets, including natural gas and renewable energy projects. It aligns digital asset mining with efficient energy use, primarily serving North American digital asset and energy market segments.

GREE vs SPRO — Head-to-Head

Bigger by revenue
SPRO
SPRO
1.1× larger
SPRO
$12.6M
$11.5M
GREE
Growing faster (revenue YoY)
SPRO
SPRO
+24103.3% gap
SPRO
24080.8%
-22.6%
GREE
Higher net margin
SPRO
SPRO
224.4% more per $
SPRO
250.7%
26.3%
GREE
Faster 2-yr revenue CAGR
SPRO
SPRO
Annualised
SPRO
847.7%
-23.0%
GREE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
GREE
GREE
SPRO
SPRO
Revenue
$11.5M
$12.6M
Net Profit
$3.0M
$31.5M
Gross Margin
Operating Margin
14.7%
Net Margin
26.3%
250.7%
Revenue YoY
-22.6%
24080.8%
Net Profit YoY
177.1%
250.9%
EPS (diluted)
$0.26
$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
GREE
GREE
SPRO
SPRO
Q4 25
$11.5M
$12.6M
Q3 25
$15.2M
$0
Q2 25
$12.9M
$0
Q1 25
$19.2M
$12.0K
Q4 24
$14.8M
$52.0K
Q3 24
$12.4M
$65.0K
Q2 24
$13.1M
$114.0K
Q1 24
$19.3M
$140.0K
Net Profit
GREE
GREE
SPRO
SPRO
Q4 25
$3.0M
$31.5M
Q3 25
$12.0M
$-7.4M
Q2 25
$-4.1M
$-1.7M
Q1 25
$-5.6M
$-13.9M
Q4 24
$-3.9M
Q3 24
$-6.4M
$-17.1M
Q2 24
$-5.6M
$-17.9M
Q1 24
$-3.9M
$-12.7M
Operating Margin
GREE
GREE
SPRO
SPRO
Q4 25
14.7%
Q3 25
2.0%
Q2 25
-26.4%
Q1 25
-12.4%
-122758.3%
Q4 24
-8.9%
Q3 24
-37.7%
-28604.6%
Q2 24
-28.8%
-16720.2%
Q1 24
-8.9%
-9987.1%
Net Margin
GREE
GREE
SPRO
SPRO
Q4 25
26.3%
250.7%
Q3 25
78.6%
Q2 25
-32.0%
Q1 25
-28.9%
-115550.0%
Q4 24
-26.4%
Q3 24
-51.6%
-26380.0%
Q2 24
-42.6%
-15668.4%
Q1 24
-20.4%
-9049.3%
EPS (diluted)
GREE
GREE
SPRO
SPRO
Q4 25
$0.26
$0.56
Q3 25
$0.75
$-0.13
Q2 25
$-0.27
$-0.03
Q1 25
$-0.40
$-0.25
Q4 24
$-0.30
Q3 24
$-0.60
$-0.32
Q2 24
$-0.56
$-0.33
Q1 24
$-0.42
$-0.24

Balance Sheet & Financial Strength

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

Metric
GREE
GREE
SPRO
SPRO
Cash + ST InvestmentsLiquidity on hand
$19.6M
$40.3M
Total DebtLower is stronger
$43.1M
Stockholders' EquityBook value
$-46.3M
$59.0M
Total Assets
$53.6M
$68.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GREE
GREE
SPRO
SPRO
Q4 25
$19.6M
$40.3M
Q3 25
$7.6M
$48.6M
Q2 25
$3.4M
$31.2M
Q1 25
$4.9M
$48.9M
Q4 24
$8.6M
$52.9M
Q3 24
$7.6M
$76.3M
Q2 24
$10.3M
$63.5M
Q1 24
$14.3M
$82.3M
Total Debt
GREE
GREE
SPRO
SPRO
Q4 25
$43.1M
Q3 25
$45.8M
Q2 25
$63.3M
Q1 25
$67.2M
Q4 24
$68.1M
Q3 24
$69.5M
Q2 24
$69.2M
Q1 24
$69.0M
Stockholders' Equity
GREE
GREE
SPRO
SPRO
Q4 25
$-46.3M
$59.0M
Q3 25
$-49.4M
$26.5M
Q2 25
$-61.2M
$32.8M
Q1 25
$-58.2M
$33.8M
Q4 24
$-55.8M
$46.1M
Q3 24
$-58.0M
$65.5M
Q2 24
$-52.1M
$80.5M
Q1 24
$-46.8M
$96.2M
Total Assets
GREE
GREE
SPRO
SPRO
Q4 25
$53.6M
$68.9M
Q3 25
$50.6M
$54.2M
Q2 25
$52.8M
$62.1M
Q1 25
$56.7M
$77.7M
Q4 24
$64.9M
$110.5M
Q3 24
$59.9M
$135.2M
Q2 24
$62.9M
$149.9M
Q1 24
$74.6M
$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
GREE
GREE
SPRO
SPRO
Operating Cash FlowLast quarter
$-15.0M
$-8.4M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
-4.98×
-0.26×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GREE
GREE
SPRO
SPRO
Q4 25
$-15.0M
$-8.4M
Q3 25
$120.0K
$17.4M
Q2 25
$-4.8M
$-17.7M
Q1 25
$-5.7M
$-4.0M
Q4 24
$-12.0M
$-23.4M
Q3 24
$-1.9M
$12.8M
Q2 24
$-1.4M
$-18.7M
Q1 24
$-5.1M
$5.9M
Cash Conversion
GREE
GREE
SPRO
SPRO
Q4 25
-4.98×
-0.26×
Q3 25
0.01×
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.

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