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Side-by-side financial comparison of Inspire Medical Systems, Inc. (INSP) and POWER SOLUTIONS INTERNATIONAL, INC. (PSIX). Click either name above to swap in a different company.

Inspire Medical Systems, Inc. is the larger business by last-quarter revenue ($269.1M vs $191.2M, roughly 1.4× POWER SOLUTIONS INTERNATIONAL, INC.). Inspire Medical Systems, Inc. runs the higher net margin — 50.6% vs 8.4%, a 42.2% gap on every dollar of revenue. On growth, POWER SOLUTIONS INTERNATIONAL, INC. posted the faster year-over-year revenue change (32.5% vs 12.2%). Inspire Medical Systems, Inc. produced more free cash flow last quarter ($41.8M vs $-7.6M). Over the past eight quarters, POWER SOLUTIONS INTERNATIONAL, INC.'s revenue compounded faster (41.7% CAGR vs 28.1%).

Inspire Medical Systems, Inc. is a medical technology firm that develops, manufactures and commercializes implantable neurostimulation solutions for obstructive sleep apnea. Its core product serves patients intolerant to CPAP therapy, with main markets across North America, Europe, and select Asia-Pacific regions, operating in sleep medicine and otolaryngology segments.

Adani Energy Solutions Ltd, formerly known as Adani Transmission Ltd, is an electric power transmission and distribution company headquartered in Ahmedabad. As of April 2025, the company operates a cumulative transmission network of 26,696 circuit kilometers and is one of the largest private sector power transmission companies operating in India.

INSP vs PSIX — Head-to-Head

Bigger by revenue
INSP
INSP
1.4× larger
INSP
$269.1M
$191.2M
PSIX
Growing faster (revenue YoY)
PSIX
PSIX
+20.3% gap
PSIX
32.5%
12.2%
INSP
Higher net margin
INSP
INSP
42.2% more per $
INSP
50.6%
8.4%
PSIX
More free cash flow
INSP
INSP
$49.4M more FCF
INSP
$41.8M
$-7.6M
PSIX
Faster 2-yr revenue CAGR
PSIX
PSIX
Annualised
PSIX
41.7%
28.1%
INSP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
INSP
INSP
PSIX
PSIX
Revenue
$269.1M
$191.2M
Net Profit
$136.1M
$16.1M
Gross Margin
86.6%
21.9%
Operating Margin
17.1%
12.7%
Net Margin
50.6%
8.4%
Revenue YoY
12.2%
32.5%
Net Profit YoY
286.4%
-31.0%
EPS (diluted)
$4.57
$0.69

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
INSP
INSP
PSIX
PSIX
Q4 25
$269.1M
$191.2M
Q3 25
$224.5M
$203.8M
Q2 25
$217.1M
$191.9M
Q1 25
$201.3M
$135.4M
Q4 24
$239.7M
$144.3M
Q3 24
$203.2M
$125.8M
Q2 24
$195.9M
$110.6M
Q1 24
$164.0M
$95.2M
Net Profit
INSP
INSP
PSIX
PSIX
Q4 25
$136.1M
$16.1M
Q3 25
$9.9M
$27.6M
Q2 25
$-3.6M
$51.2M
Q1 25
$3.0M
$19.1M
Q4 24
$35.2M
$23.3M
Q3 24
$18.5M
$17.3M
Q2 24
$9.8M
$21.5M
Q1 24
$-10.0M
$7.1M
Gross Margin
INSP
INSP
PSIX
PSIX
Q4 25
86.6%
21.9%
Q3 25
85.8%
23.9%
Q2 25
84.0%
28.2%
Q1 25
84.7%
29.7%
Q4 24
85.0%
29.9%
Q3 24
84.1%
28.9%
Q2 24
84.8%
31.8%
Q1 24
84.9%
27.0%
Operating Margin
INSP
INSP
PSIX
PSIX
Q4 25
17.1%
12.7%
Q3 25
4.3%
13.9%
Q2 25
-1.5%
16.9%
Q1 25
-0.7%
18.2%
Q4 24
13.3%
17.5%
Q3 24
7.0%
16.3%
Q2 24
2.6%
22.9%
Q1 24
-9.3%
11.2%
Net Margin
INSP
INSP
PSIX
PSIX
Q4 25
50.6%
8.4%
Q3 25
4.4%
13.5%
Q2 25
-1.7%
26.7%
Q1 25
1.5%
14.1%
Q4 24
14.7%
16.1%
Q3 24
9.1%
13.8%
Q2 24
5.0%
19.5%
Q1 24
-6.1%
7.5%
EPS (diluted)
INSP
INSP
PSIX
PSIX
Q4 25
$4.57
$0.69
Q3 25
$0.34
$1.20
Q2 25
$-0.12
$2.22
Q1 25
$0.10
$0.83
Q4 24
$1.17
$1.01
Q3 24
$0.60
$0.75
Q2 24
$0.32
$0.94
Q1 24
$-0.34
$0.31

Balance Sheet & Financial Strength

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

Metric
INSP
INSP
PSIX
PSIX
Cash + ST InvestmentsLiquidity on hand
$308.3M
$41.3M
Total DebtLower is stronger
$96.6M
Stockholders' EquityBook value
$781.2M
$178.6M
Total Assets
$907.3M
$424.7M
Debt / EquityLower = less leverage
0.54×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
INSP
INSP
PSIX
PSIX
Q4 25
$308.3M
$41.3M
Q3 25
$322.6M
$49.0M
Q2 25
$300.9M
$49.5M
Q1 25
$369.2M
$50.0M
Q4 24
$445.5M
$55.3M
Q3 24
$411.0M
$40.5M
Q2 24
$439.7M
$28.8M
Q1 24
$441.4M
$33.1M
Total Debt
INSP
INSP
PSIX
PSIX
Q4 25
$96.6M
Q3 25
$96.7M
Q2 25
$1.8M
Q1 25
$1.0M
Q4 24
$184.0K
Q3 24
$238.0K
Q2 24
$292.0K
Q1 24
$345.0K
Stockholders' Equity
INSP
INSP
PSIX
PSIX
Q4 25
$781.2M
$178.6M
Q3 25
$666.5M
$162.5M
Q2 25
$677.8M
$135.7M
Q1 25
$635.7M
$84.3M
Q4 24
$689.7M
$65.3M
Q3 24
$696.6M
$42.1M
Q2 24
$638.1M
$24.8M
Q1 24
$589.0M
$3.2M
Total Assets
INSP
INSP
PSIX
PSIX
Q4 25
$907.3M
$424.7M
Q3 25
$807.7M
$458.9M
Q2 25
$802.2M
$437.7M
Q1 25
$730.8M
$372.7M
Q4 24
$808.4M
$328.2M
Q3 24
$796.2M
$339.1M
Q2 24
$728.4M
$307.6M
Q1 24
$685.8M
$286.8M
Debt / Equity
INSP
INSP
PSIX
PSIX
Q4 25
0.54×
Q3 25
0.60×
Q2 25
0.01×
Q1 25
0.01×
Q4 24
0.00×
Q3 24
0.01×
Q2 24
0.01×
Q1 24
0.11×

Cash Flow & Capital Efficiency

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

Metric
INSP
INSP
PSIX
PSIX
Operating Cash FlowLast quarter
$52.5M
$-4.6M
Free Cash FlowOCF − Capex
$41.8M
$-7.6M
FCF MarginFCF / Revenue
15.5%
-4.0%
Capex IntensityCapex / Revenue
4.0%
1.6%
Cash ConversionOCF / Net Profit
0.39×
-0.29×
TTM Free Cash FlowTrailing 4 quarters
$78.5M
$14.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
INSP
INSP
PSIX
PSIX
Q4 25
$52.5M
$-4.6M
Q3 25
$68.5M
$3.3M
Q2 25
$2.7M
$16.7M
Q1 25
$-6.7M
$8.8M
Q4 24
$69.2M
$32.7M
Q3 24
$52.3M
$12.6M
Q2 24
$-78.0K
$1.5M
Q1 24
$8.9M
$15.6M
Free Cash Flow
INSP
INSP
PSIX
PSIX
Q4 25
$41.8M
$-7.6M
Q3 25
$58.1M
$1.7M
Q2 25
$-6.3M
$14.6M
Q1 25
$-15.1M
$5.4M
Q4 24
$62.2M
$30.0M
Q3 24
$44.3M
$12.1M
Q2 24
$-12.5M
$822.0K
Q1 24
$-2.8M
$14.8M
FCF Margin
INSP
INSP
PSIX
PSIX
Q4 25
15.5%
-4.0%
Q3 25
25.9%
0.8%
Q2 25
-2.9%
7.6%
Q1 25
-7.5%
4.0%
Q4 24
25.9%
20.8%
Q3 24
21.8%
9.7%
Q2 24
-6.4%
0.7%
Q1 24
-1.7%
15.6%
Capex Intensity
INSP
INSP
PSIX
PSIX
Q4 25
4.0%
1.6%
Q3 25
4.6%
0.8%
Q2 25
4.1%
1.1%
Q1 25
4.2%
2.5%
Q4 24
2.9%
1.8%
Q3 24
3.9%
0.3%
Q2 24
6.3%
0.6%
Q1 24
7.1%
0.9%
Cash Conversion
INSP
INSP
PSIX
PSIX
Q4 25
0.39×
-0.29×
Q3 25
6.90×
0.12×
Q2 25
0.33×
Q1 25
-2.24×
0.46×
Q4 24
1.96×
1.40×
Q3 24
2.83×
0.73×
Q2 24
-0.01×
0.07×
Q1 24
2.20×

Financial Flow Comparison

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

Revenue Breakdown by Segment

INSP
INSP

Segment breakdown not available.

PSIX
PSIX

Energy End Market$153.4M80%
Industrial End Market$33.3M17%
Transportation End Market$4.6M2%

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