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Side-by-side financial comparison of Iridium Communications Inc. (IRDM) and Sphere Entertainment Co. (SPHR). Click either name above to swap in a different company.

Sphere Entertainment Co. is the larger business by last-quarter revenue ($393.8M vs $219.1M, roughly 1.8× Iridium Communications Inc.). Sphere Entertainment Co. runs the higher net margin — 16.4% vs 9.9%, a 6.6% gap on every dollar of revenue. Over the past eight quarters, Sphere Entertainment Co.'s revenue compounded faster (12.1% CAGR vs 4.4%).

Iridium Communications Inc. is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation, a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. Iridium Satellites are used for worldwide voice and data communication from handheld satellite phones, satellite messenger communication devices and integrated transceivers, as well as for two-way satellite messaging se...

Sphere Entertainment Co. is an American entertainment holding company based in New York City, and controlled by the family of Charles Dolan. It owns the Sphere event venue in Paradise, Nevada, in the Las Vegas Valley and New York-based regional sports network chain MSG Networks.

IRDM vs SPHR — Head-to-Head

Bigger by revenue
SPHR
SPHR
1.8× larger
SPHR
$393.8M
$219.1M
IRDM
Higher net margin
SPHR
SPHR
6.6% more per $
SPHR
16.4%
9.9%
IRDM
Faster 2-yr revenue CAGR
SPHR
SPHR
Annualised
SPHR
12.1%
4.4%
IRDM

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
IRDM
IRDM
SPHR
SPHR
Revenue
$219.1M
$393.8M
Net Profit
$21.6M
$64.7M
Gross Margin
Operating Margin
23.2%
7.3%
Net Margin
9.9%
16.4%
Revenue YoY
1.9%
Net Profit YoY
EPS (diluted)
$2.42

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
IRDM
IRDM
SPHR
SPHR
Q1 26
$219.1M
Q4 25
$212.9M
$393.8M
Q3 25
$226.9M
$262.1M
Q2 25
$216.9M
$282.2M
Q1 25
$214.9M
$280.1M
Q4 24
$213.0M
Q3 24
$212.8M
$227.1M
Q2 24
$201.1M
$272.6M
Net Profit
IRDM
IRDM
SPHR
SPHR
Q1 26
$21.6M
Q4 25
$24.9M
$64.7M
Q3 25
$37.1M
$-101.2M
Q2 25
$22.0M
$151.8M
Q1 25
$30.4M
$-82.0M
Q4 24
$36.3M
Q3 24
$24.4M
$-105.3M
Q2 24
$32.3M
$-46.6M
Operating Margin
IRDM
IRDM
SPHR
SPHR
Q1 26
23.2%
Q4 25
25.9%
7.3%
Q3 25
30.9%
-49.5%
Q2 25
23.2%
-17.8%
Q1 25
28.1%
-28.1%
Q4 24
24.5%
Q3 24
25.8%
-51.8%
Q2 24
21.7%
-66.3%
Net Margin
IRDM
IRDM
SPHR
SPHR
Q1 26
9.9%
Q4 25
11.7%
16.4%
Q3 25
16.4%
-38.6%
Q2 25
10.1%
53.8%
Q1 25
14.2%
-29.3%
Q4 24
17.1%
Q3 24
11.5%
-46.4%
Q2 24
16.1%
-17.1%
EPS (diluted)
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$0.24
$2.42
Q3 25
$0.35
$-2.80
Q2 25
$0.20
$3.39
Q1 25
$0.27
$-2.27
Q4 24
$0.30
Q3 24
$0.21
$-2.95
Q2 24
$0.27
$-1.33

Balance Sheet & Financial Strength

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

Metric
IRDM
IRDM
SPHR
SPHR
Cash + ST InvestmentsLiquidity on hand
Total DebtLower is stronger
$692.7M
Stockholders' EquityBook value
$2.2B
Total Assets
$4.2B
Debt / EquityLower = less leverage
0.31×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$96.5M
Q3 25
$88.5M
$384.8M
Q2 25
$79.3M
$355.7M
Q1 25
$50.9M
$465.0M
Q4 24
$93.5M
Q3 24
$159.6M
Q2 24
$63.5M
$559.8M
Total Debt
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$1.8B
$692.7M
Q3 25
$733.8M
Q2 25
$743.8M
Q1 25
$1.3B
Q4 24
$1.8B
Q3 24
$1.4B
Q2 24
$1.4B
Stockholders' Equity
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$462.6M
$2.2B
Q3 25
$450.5M
$2.2B
Q2 25
$473.6M
$2.3B
Q1 25
$518.4M
$2.1B
Q4 24
$576.6M
Q3 24
$663.8M
$2.3B
Q2 24
$786.7M
$2.4B
Total Assets
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$2.5B
$4.2B
Q3 25
$2.6B
$4.1B
Q2 25
$2.6B
$4.2B
Q1 25
$2.6B
$4.4B
Q4 24
$2.7B
Q3 24
$2.8B
$4.6B
Q2 24
$2.7B
Debt / Equity
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
3.80×
0.31×
Q3 25
0.34×
Q2 25
0.32×
Q1 25
0.62×
Q4 24
3.05×
Q3 24
0.59×
Q2 24
0.57×

Cash Flow & Capital Efficiency

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

Metric
IRDM
IRDM
SPHR
SPHR
Operating Cash FlowLast quarter
$180.2M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
13.7%
Cash ConversionOCF / Net Profit
2.78×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$108.6M
$180.2M
Q3 25
$100.8M
$115.8M
Q2 25
$129.6M
$-59.1M
Q1 25
$61.1M
$6.3M
Q4 24
$104.8M
Q3 24
$118.6M
$34.1M
Q2 24
$81.1M
$-72.4M
Free Cash Flow
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
$75.1M
Q3 25
$79.2M
Q2 25
$108.9M
Q1 25
$36.5M
Q4 24
$80.5M
Q3 24
$100.0M
Q2 24
$68.7M
FCF Margin
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
35.3%
Q3 25
34.9%
Q2 25
50.2%
Q1 25
17.0%
Q4 24
37.8%
Q3 24
47.0%
Q2 24
34.2%
Capex Intensity
IRDM
IRDM
SPHR
SPHR
Q1 26
13.7%
Q4 25
15.7%
Q3 25
9.5%
Q2 25
9.5%
Q1 25
11.4%
Q4 24
11.4%
Q3 24
8.7%
Q2 24
6.2%
Cash Conversion
IRDM
IRDM
SPHR
SPHR
Q1 26
Q4 25
4.37×
2.78×
Q3 25
2.71×
Q2 25
5.90×
-0.39×
Q1 25
2.01×
Q4 24
2.88×
Q3 24
4.85×
Q2 24
2.51×

Financial Flow Comparison

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

Revenue Breakdown by Segment

IRDM
IRDM

Voice and data$57.4M26%
IoT data (2)$46.0M21%
Government$39.5M18%
Government service revenue (5)$27.6M13%
Subscriber equipment$20.2M9%
Hosted payload and other data service (4)$14.8M7%
Broadband (3)$12.2M6%
Commercial$1.3M1%

SPHR
SPHR

Ticketing And Venue License Fee Revenues$198.5M50%
Media Networks Revenue$120.1M30%
Sponsorship Signage Exosphere Advertising And Suite Licenses$32.2M8%
Food Beverage And Merchandise Revenues$27.6M7%
Other$13.2M3%
Related Party$2.3M1%

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