vs

Side-by-side financial comparison of CLEANSPARK, INC. (CLSK) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

CLEANSPARK, INC. is the larger business by last-quarter revenue ($181.2M vs $162.6M, roughly 1.1× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs -209.0%, a 263.8% gap on every dollar of revenue. On growth, CLEANSPARK, INC. posted the faster year-over-year revenue change (11.6% vs -10.3%). Over the past eight quarters, CLEANSPARK, INC.'s revenue compounded faster (106.4% CAGR vs -8.1%).

CleanSpark, Inc. is a U.S.-headquartered sustainable technology company operating two core business segments: low-carbon Bitcoin mining powered primarily by renewable and stranded energy resources, and end-to-end microgrid design, deployment, and operation services for commercial, industrial, and public sector clients across North America.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

CLSK vs RBBN — Head-to-Head

Bigger by revenue
CLSK
CLSK
1.1× larger
CLSK
$181.2M
$162.6M
RBBN
Growing faster (revenue YoY)
CLSK
CLSK
+21.9% gap
CLSK
11.6%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
263.8% more per $
RBBN
54.8%
-209.0%
CLSK
Faster 2-yr revenue CAGR
CLSK
CLSK
Annualised
CLSK
106.4%
-8.1%
RBBN

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
CLSK
CLSK
RBBN
RBBN
Revenue
$181.2M
$162.6M
Net Profit
$-378.7M
$89.1M
Gross Margin
47.2%
42.9%
Operating Margin
-174.7%
37.6%
Net Margin
-209.0%
54.8%
Revenue YoY
11.6%
-10.3%
Net Profit YoY
-253.5%
EPS (diluted)
$0.50

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
CLSK
CLSK
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$181.2M
$227.3M
Q3 25
$215.4M
Q2 25
$220.6M
Q1 25
$181.3M
Q4 24
$251.4M
Q3 24
$89.3M
$210.2M
Q2 24
$104.1M
$192.6M
Net Profit
CLSK
CLSK
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$-378.7M
Q3 25
$-12.1M
Q2 25
$-11.1M
Q1 25
$-26.2M
Q4 24
Q3 24
$-62.2M
$-13.4M
Q2 24
$-236.2M
$-16.8M
Gross Margin
CLSK
CLSK
RBBN
RBBN
Q1 26
42.9%
Q4 25
47.2%
53.3%
Q3 25
50.1%
Q2 25
49.6%
Q1 25
45.4%
Q4 24
55.7%
Q3 24
36.0%
52.1%
Q2 24
56.6%
50.8%
Operating Margin
CLSK
CLSK
RBBN
RBBN
Q1 26
37.6%
Q4 25
-174.7%
4.1%
Q3 25
1.3%
Q2 25
1.9%
Q1 25
-10.8%
Q4 24
13.2%
Q3 24
-73.5%
-0.4%
Q2 24
-239.2%
-1.0%
Net Margin
CLSK
CLSK
RBBN
RBBN
Q1 26
54.8%
Q4 25
-209.0%
Q3 25
-5.6%
Q2 25
-5.0%
Q1 25
-14.5%
Q4 24
Q3 24
-69.6%
-6.4%
Q2 24
-226.9%
-8.7%
EPS (diluted)
CLSK
CLSK
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.50
Q3 25
$-0.07
Q2 25
$-0.06
Q1 25
$-0.15
Q4 24
$0.05
Q3 24
$-0.08
Q2 24
$-0.10

Balance Sheet & Financial Strength

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

Metric
CLSK
CLSK
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$458.1M
$67.6M
Total DebtLower is stronger
$1.8B
Stockholders' EquityBook value
$1.4B
$419.1M
Total Assets
$3.3B
Debt / EquityLower = less leverage
1.29×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CLSK
CLSK
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$458.1M
$96.4M
Q3 25
$74.8M
Q2 25
$60.5M
Q1 25
$71.2M
Q4 24
$87.8M
Q3 24
$121.2M
$37.2M
Q2 24
$126.1M
$64.6M
Total Debt
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
$1.8B
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$348.3M
Q3 24
$7.2M
$349.1M
Q2 24
$1.3M
$350.0M
Stockholders' Equity
CLSK
CLSK
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$1.4B
$449.0M
Q3 25
$360.1M
Q2 25
$370.4M
Q1 25
$381.8M
Q4 24
$404.6M
Q3 24
$1.8B
$395.5M
Q2 24
$1.4B
$405.0M
Total Assets
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
$3.3B
$1.2B
Q3 25
$1.1B
Q2 25
$1.1B
Q1 25
$1.1B
Q4 24
$1.2B
Q3 24
$2.0B
$1.1B
Q2 24
$1.5B
$1.1B
Debt / Equity
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
1.29×
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.00×
0.88×
Q2 24
0.00×
0.86×

Cash Flow & Capital Efficiency

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

Metric
CLSK
CLSK
RBBN
RBBN
Operating Cash FlowLast quarter
$-161.1M
Free Cash FlowOCF − Capex
$-198.1M
FCF MarginFCF / Revenue
-109.3%
Capex IntensityCapex / Revenue
20.4%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-626.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
$-161.1M
$29.2M
Q3 25
$26.5M
Q2 25
$-795.0K
Q1 25
$-3.5M
Q4 24
$61.8M
Q3 24
$-233.7M
$-14.8M
Q2 24
$-58.4M
$-9.8M
Free Cash Flow
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
$-198.1M
$27.3M
Q3 25
$21.0M
Q2 25
$-6.5M
Q1 25
$-15.7M
Q4 24
$53.8M
Q3 24
$-299.8M
$-23.7M
Q2 24
$-68.7M
$-12.9M
FCF Margin
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
-109.3%
12.0%
Q3 25
9.7%
Q2 25
-2.9%
Q1 25
-8.7%
Q4 24
21.4%
Q3 24
-335.8%
-11.3%
Q2 24
-66.0%
-6.7%
Capex Intensity
CLSK
CLSK
RBBN
RBBN
Q1 26
Q4 25
20.4%
0.9%
Q3 25
2.6%
Q2 25
2.6%
Q1 25
6.7%
Q4 24
3.2%
Q3 24
74.0%
4.2%
Q2 24
9.9%
1.6%

Financial Flow Comparison

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

Revenue Breakdown by Segment

CLSK
CLSK

Segment breakdown not available.

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

Related Comparisons